lars/geant4
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
minicalosim-spawning
geant4/ReleaseNotes/ReleaseNotes.11.4.html
T
Gabriele Cosmo b4a16de652 Import Geant4 11.4.0 source tree
2025-12-05 08:54:02 +01:00

2214 lines
110 KiB
HTML
Raw Permalink Blame History

<HTML>
<HEAD>
<TITLE>Geant4 11.4 Release Notes</TITLE>
</HEAD>
<BODY BGCOLOR='F0F0F0'>
<P> </P>
<BR>
<P> </P>
<P ALIGN="Center">
<FONT SIZE="+4" COLOR="#238E23">
<B>Geant4 11.4 Release Notes</B>
</FONT>
<TABLE WIDTH="100%">
<TR><TD ALIGN="Right">
<FONT SIZE="-1" COLOR="#5C3317">
<B><I>December 5<SUP>th</SUP>, 2025</I></B>
</FONT>
</TD></TR>
</TABLE>
<BR><BR>
<HR ALIGN="Center" SIZE="7%">
<P>
The code and binary libraries for the supported systems are available
through our <A TARGET="ext" HREF="https://cern.ch/geant4/support/download">Source
Code Web page</A>.
</P>
<P>
<I>We are grateful for the efforts of Geant4 users who have provided
detailed feedback or comprehensive reports of issues.
We thank in particular those who have contributed corrections,
improvements or developments included in this release.</I>
</P>
<P>
Please refer to the
<A TARGET="ext" HREF="https://cern.ch/geant4/support/user_documentation">Geant4
User Documentation</A> for further information about using Geant4.
</P>
<H2><I>Contents</I></H2>
<OL>
<LI><A HREF="#1.">Supported and Tested Platforms</A></LI>
<LI><A HREF="#2.">Supported CLHEP, VecGeom and PTL versions</A></LI>
<LI><A HREF="#3.">Items for migration of the user code</A></LI>
<LI><A HREF="#4.">New Developments and Capabilities</A></LI>
<LI><A HREF="#5.">Expected effects on physics and performance</A></LI>
<LI><A HREF="#6.">Known Run-Time Problems and Limitations</A></LI>
<LI><A HREF="#7.">Compilation Warnings</A></LI>
<LI><A HREF="#8.">Geant4 Software License</A></LI>
<LI><A HREF="#9.">Detailed list of changes and fixes</A></LI>
</OL>
<P> </P>
<A NAME="1."></a>
<HR>
<!-- ============================================== -->
<H2>1. Supported and Tested Platforms</H2>
Platforms:
<UL>
<LI>Linux, gcc-15.2.0.<BR>
Tested on 64 bit architectures (Intel or AMD) with
Alma Linux 9 (based on RedHat Linux Enterprise 9).</LI>
<LI>macOS 26.1 Tahoe with Apple LLVM/Clang-17.<BR>
Tested on 64 bit architectures (Intel or Apple Silicon).</LI>
<LI>Windows-11 with Visual C++ 14.4 (Visual Studio 2022), 64 bits.</LI>
</UL>
More verified and tested configurations (64 bits):
<UL>
<LI>Linux, 11.5/12.1/13.2/14.2, clang-19/20</LI>
<LI>Linux, Intel-icx 2025.3</LI>
<LI>macOS 13.7 Ventura with Apple LLVM/clang-15</LI>
<LI>macOS 14.7 Sonoma with Apple LLVM/clang-16</LI>
</UL>
<P> </P>
<A NAME="2."></A>
<HR>
<!-- ============================================== -->
<H2>2. Supported CLHEP, VecGeom and PTL versions</H2>
This release of Geant4 has been verified with
<A TARGET="ext" HREF="https://cern.ch/clhep/">CLHEP</A>, release <B>2.4.7.2</B>.
Use of a different CLHEP version may cause incorrect simulation results.<BR>
NOTE: an internal module of the relevant CLHEP classes is provided and can be
used as alternative to an external CLHEP library installation.<BR>
A configuration option allows a Geant4 installation to use the
<A TARGET="ext" HREF="https://gitlab.cern.ch/VecGeom/VecGeom/">VecGeom Library</A>
primitives, to replace the original Geant4 solids.<BR>
VecGeom version <B>2.0.0</B> can be adopted when using such configuration.<BR>
PTL version <B>3.0.1</B> or later is required for external installation of the
<A TARGET="ext" HREF="https://github.com/jrmadsen/PTL">PTL tasking library</A>.<BR>
CMake <B>3.16</B> is the minimum version required to build Geant4.
<P> </P>
<A NAME="3."></A>
<HR>
<!-- ============================================== -->
<H2>3. Items for migration of the user code</H2>
Listed here is some relevant information on developments included in this
release.
Note that for all users a full re-installation of libraries (or a full
re-compilation) and a re-compilation of user applications is required.
<P> </P>
<B>General</B>
<P> </P>
<UL>
<LI>The build of the <TT>G4processes</TT> library has been split into two
parts, <TT>G4processes_hadronic</TT> for the hadronic part and
<TT>G4processes_core</TT> for the remainder. <TT>G4processes</TT> remains
valid as interface through CMake supporting creation of categories that
are just an interface to other categories.</LI>
<LI>The default configuration now enables use of Qt6 when selecting Qt support
for visualisation. The user must set <TT>GEANT4_USE_QT_QT5</TT> in
configuration in order to force find/use of Qt5 instead.</LI>
</UL>
<P> </P>
<B>Electromagnetic and optical physics</B>
<P> </P>
<UL>
<LI>New dataset <TT>G4EMLOW-8.8</TT> is required and should be used.</LI>
</UL>
<P> </P>
<B>Hadronic physics</B>
<P> </P>
<UL>
<LI>New hadronic datasets <TT>G4PhotonEvaporation-6.1.2, G4INCL-1.3,
G4PARTICLEXS-4.2</TT> are required and should be used.</LI>
<LI>Note that since release 11.3.2, it has been introduced an option to roll
back the Bertini-like intra-nuclear cascade model (BERT) as it was in
Geant4 version 11.2. This is possible via the C++ interface:
<TT>G4HadronicParameters::Instance()->SetBertiniAs11_2(true)</TT>.
The motivation is that not all thin-target data show consistently that the
developments in BERT model made in version 11.3 are improving the agreement
with simulation.</LI>
</UL>
<P> </P>
<B>Run</B>
<UL>
<LI>In G4PhysicsListHelper, changed ordering of processes: for X-Ray production
using ordering parameter 100 for post step instead of 1000; fixed ordering
for muon capture at rest.
This change may affect users' hard-coded physics-lists.</LI>
</UL>
<P> </P>
<B>Visualization and Modeling</B>
<P> </P>
<UL>
<LI>Removed HepRepFile and Qt3D visualisation drivers, no longer viable
to develop and maintain.</LI>
</UL>
<P> </P>
<B>Data Sets</B>
<P> </P>
<UL>
<LI>This release introduces new data set versions.
Please see the corresponding details in
<A href="#data-notes">Section 9</A> of this document.
<UL>
<LI>New data set versions: <TT>G4PhotonEvaporation-6.1.2, G4INCL-1.3,
G4CHANNELING-2.0, G4EMLOW-8.8, G4PARTICLEXS-4.2</TT>.</LI>
<LI>In order to use <TT>ParticleHP</TT> for charged particles
(protons, deuterons, tritons, He3 and alphas), an <U>optional</U> data
set <TT>G4TENDL-1.4</TT> is required, and can be optionally
downloaded in addition.</LI>
<LI><U>Optional</U> nuclear data sets for use with the LEND (Low Energy
Nuclear Data) Cross Section and Model can be optionally downloaded
here:<BR>
<A HREF="https://cern.ch/geant4-data/datasets/LEND_GNDS2.0_ENDF.BVII.1.tar.gz">LEND_GNDS2.0_ENDF.BVII.1</A> (2.87 Gb),
<A HREF="https://cern.ch/geant4-data/datasets/LEND_GNDS2.0_ENDF.BVIII.0.tar.gz">LEND_GNDS2.0_ENDF.BVIII.0</A> (4.24 Gb),
<A HREF="https://cern.ch/geant4-data/datasets/LEND_GNDS2.0_ENDF.BVIII.1.tar.gz">LEND_GNDS2.0_ENDF.BVIII.1</A> (5.78 Gb).<BR>
The <TT>G4LENDDATA</TT> environment variable should be used to switch
the path to the appropriate nuclear data library unpacked and
installed.</LI>
</UL></LI>
</UL>
<A NAME="4."></A>
<HR>
<!-- ============================================== -->
<H2>4. New Developments and Capabilities </H2>
<B>General</B>
<UL>
<LI>Enabled worker threads to receive next sub-event before completing the
current sub-event in G4WorkerSubEvtRunManager and G4EventManager.</LI>
<LI>New utility class G4VSIntegration, for integration of probability density
function and dynamically sampling of final state.</LI>
<LI>New UI commands to allow limiting the number of warning messages to be
printed out during a run.</LI>
<LI>Introduced a new method <TT>SetDefaultClassification()</TT> in
G4RunManager which enables the default behavior of the stack without
implementing a G4VUserStackingAction.</LI>
</UL>
<B>Geometry & Field</B>
<UL>
<LI>Enabled voxelisation parallelism by default in G4GeometryManager, when
MT/tasks are enabled. Enabled also for potential 2nd (and later) calls.</LI>
<LI>Extended UI command <TT>/geometry/test/run</TT> to support optional overlap
check mode to check for overlaps in the volume tree without duplication in
identical logical volumes.</LI>
<LI>Reimplementated the QSS integration methods, improving readability.
Third order QSS3 method is now available.</LI>
<LI>Revised the default values of parameters in G4FieldParameters, consistent
with previous practice in the relevant classes' constructors. Added methods
to access the field, stepper and equation types in G4FieldParameters.</LI>
<LI>Reorganised and enriched comments in headers to follow Doxygen style in
geometry modules.</LI>
<LI>In G4Box, optimised normal calculation in <TT>DistanceToOut()</TT>.</LI>
<LI>Code optimization in <TT>GetPointOnSurface()</TT> in specific shapes.
Optimised surface area and cubic volume calculation of several geometrical
primitives.</LI>
</UL>
<B>Intercoms</B>
<UL>
<LI>New <TT>@@</TT> keyword to be used in UI commands taking a macro file name;
it allows to create a temporary macro file with the commands being
defined following it, until a <TT>/control/endRecord</TT> command is
specified.</LI>
</UL>
<B>Particles</B>
<UL>
<LI>Updated particle properties to PDG-2025.</LI>
</UL>
<B>Electromagnetic physics</B>
<UL>
<LI>Implemented new option to enable/disable fluctuation of energy loss per
G4Region.</LI>
<LI><U>Optical photons</U>
<UL>
<LI>First implementation of the model approach for X-Ray processes
Cerenkov and Scintillation processes. Their new base class is
G4VXRayModel.</LI>
<LI>Build the integral tables only for materials that have non-empty
material property tables in G4Scintillation and G4Cerenkov.</LI>
<LI>To enable the generation of a burst of optical photons (via
scintillation or Cerenkov radiation), and their propagation, created
new class G4QuasiOpticalPhoton as a G4ParticleDefinition. Defined
related processes G4QuasiCherenkov and G4QuasiScintillation.</LI>
<LI>Code refactoring and optimisations in G4OpBoundaryProcess.</LI>
</UL></LI>
<LI><U>Geant4-DNA</U>
<UL>
<LI>Introduced usage of the new ion ionisation model in DNA Opt8 physics
configuration.</LI>
<LI>New class G4DNABornIonisationModel, a new implementation of the Born
model using a new class G4DNASamplingTable, which allows the sharing
of sampling data between threads.</LI>
<LI>Extended G4DNAELSEPAElasticModel in G4DNA up to 10 MeV for water.</LI>
<LI>New class G4ChemReboundTransportation to handle the rebound
transportation of the molecule.</LI>
</UL></LI>
<LI>New G4LowPAIH2O model for dE/dx in water for p and e-.</LI>
<LI>Updated Reverse MC simulation to work in MT mode.</LI>
</UL>
<B>Hadronic physics</B>
<UL>
<LI>It is now possible to distinguish quasi-elastic from diffractive tracks
in the Fritiof (FTF) string model: the method in G4Track
<TT>GetCreatorModelID()</TT> returns <TT>21350</TT> for FTF quasi-elastic,
and <TT>21600</TT> for FTF diffraction.<BR>
Note: for QGS-based physics lists the separate, dedicated quasi-elastic
model produces tracks with model-ID <TT>21300</TT>; tracks produced by QGS
have model-ID <TT>22200</TT> (for both diffractive and non-diffractive
interactions).</LI>
<LI>In G4HadronicProcess, removed warning for the case when K0 and anti-K0
are transformed into K0S or K0L.</LI>
<LI>Updated algorithms for the integration of probabilities and sampling of
kinetic energy of the emitted fragments in hadronic de-excitation and
pre-equilibrium. Expected more accurate spectra.</LI>
<LI>New alternative hadronic de-excitation FermiBreakUp model, G4FermiBreakUpAN,
and support classes. This alternative option can be enabled via C++
interface in G4DeexPrecoParameters:
<TT>SetFermiBreakUpType(G4FermiBreakUpType::bModelAN)</TT>.</LI>
<LI>Extension of the INCLXX model to handle anti-neutron at rest and in-flight.
This is used by default in INCLXX-based physics lists.</LI>
<LI>In G4ChargeExchange, implemented the angular distribution of pion charge
exchange according to the V. Lubovitsky parameterisation for different
reaction channels.</LI>
<LI>Major update of GIDIplus interface in LEND hadronic model, with refactored
C++ code, including use of official GNDS formatted data. Added feature for
high-fidelity gamma cascades following reactions such as neutron capture
and inelastic scattering.</LI>
</UL>
<B>Physics Lists</B>
<UL>
<LI>For the three physics lists QGSP_BIC_HP, QGSP_BIC_HPT and QGSP_BIC_AllHP,
whereby the electromagnetic physics option 4 is used by default, it is now
possible to utilise the electromagnetic standard (i.e. option 0) via the
physics list factory by adding the suffix <TT>_EM0</TT> to their names
(i.e. QGSP_BIC_HP_EM0, QGSP_BIC_HPT_EM0, and QGSP_BIC_AllHP_EM0).</LI>
<LI>The INCLXX-based physics lists (e.g. FTFP_INCLXX and QGSP_INCLXX) are
using now INCLXX (instead of FTFP as before) for the annihilation (at rest
and in-flight) of anti-neutrons.</LI>
<LI>The optional NuDEX nuclear de-excitation model (introduced in Geant4
version 11.3 only for neutron capture in the physics list QGSP_BERT_HP)
is available also for neutron capture in the QGSP_BIC_HP and QGSP_BIC_AllHP
physics lists.</LI>
<LI>Added G4HadronPhysicsLEND in physics-lists to configure neutron and photon
induced processes from LEND.</LI>
<LI>The G4EmDNABuilder class provides configuration of DNA physics for all
particles and all standard + DNA configurations.</LI>
<LI>Recommended DNA physics lists are: G4EmDNAPhysics_option2,
G4EmDNAPhysics_option4, G4EmDNAPhysics_option6, G4EmDNAPhysics_option8.</li>
<LI>For electrons the upper limit of DNA models is <TT>1 MeV</TT>.
For protons and ions the upper limit of DNA models is <TT>300 MeV/u</TT>.
For higher energy the standard physics is used.</LI>
</UL>
<B>Visualization and Interfaces</B>
<UL>
<LI>Updated g4tools and ToolsGS visualisation driver to use OpenGL-3.2 when
co-working with Vtk.</LI>
<LI>First version of generic time windowing of trajectory slices in
visualisation. Introduced Time Window tab in Qt UI.</LI>
<LI>Introducing RayTracerQt visualisation driver, enabled when GEANT4_USE_QT
configuration is enabled.</LI>
<LI>Set default configuration to use Qt6 when selecting Qt support.
User must set GEANT4_USE_QT_QT5 to force find/use of Qt5.</LI>
<LI>Make the TSG driver the "flagship" visualization driver.</LI>
<LI>Re-instated transparency slider in visualization GUI.</LI>
<LI>In G4OpenGLQtViewer, fixed the original pick feature, which was
inadvertently broken, to show pick info window.</LI>
<LI>General optimization of zoom behavior in visualization when using mouse
wheel.</LI>
</UL>
<B>Examples</B>
<UL>
<LI>Introduced the CaloDiT pre-trained ML model for fast simulation
in <I>Par04</I> extended example, offering greater accuracy.</LI>
<LI>New advanced example <I>IAEAphsp</I> demonstrating how to use IAEAphsp
files as input source (i.e. as a primary generator) and how to produce
IAEAphsp outputs at given scoring planes. Reference paper:
M.A. Cortes-Giraldo et al., Int J Radiat Biol 88(1-2): 200-208 (2012).</LI>
<LI>New advanced example <I>microelec_SEY</I> simulating the passage of
incident electrons [10eV, 10keV] in a stack of 6 layers, where thicknesses
and material nature can be user defined. The number of electrons re-emitted
by the irradiated surface is counted by a spherical detector surrounding
the whole geometry and providing the SEY rate in a csv file as a function
of the incident energy.</LI>
<LI>New extended example for channeling, <I>ch5</I>, primarily designed to
simulate positron sources based on oriented crystals.</LI>
<LI>New G4DNA extended examples: <I>microtrack</i>, implementing a geometry to
calculate microdosimetry quantities for ion tracks in liquid water at a
given energy, ensuring secondary electron equilibrium when needed;
<I>molcounters</I>, showing how to use the new molecule counter manager
system and how to write custom molecule counters; <I>phasespace</I>,
showing how to simulate particle tracks in a cube of liquid water
containing a scoring sphere, placed in its centre; <I>radial</I>,
showing how to simulate radial dose profiles in liquid water from incident
ions using the Geant4-DNA physics processes and models.</LI>
</UL>
<A NAME="5."></A>
<HR>
<!-- ============================================== -->
<H2>5. Expected effects on physics and computing performance</H2>
<B>Electromagnetic physics</B>
<UL>
<LI>Updated Goudsmit-Saunderson multiple-scattering model to optionally use the
most accurate algorithm; updated G4EmStandardPhysicsGS according to the
changes in the GS multiple scattering model, the standard GS EM constructor
is expected to provide accurate e-/e+ simulations now (similar accuracy as
in Livermove, Penelope and option 4).</LI>
<li>It is expected that less memory will be used by G4Cerenkov and
G4Scintilation processes.</li>
<li>G4EmCalculator: now providing correct computation of dEdx for ions.</li>
</UL>
<B>Hadronic physics</B>
<UL>
<LI>Hadronic showers remain stable, for all physics lists.</LI>
</UL>
<P> </P>
<A NAME="6."></A>
<HR>
<!-- ============================================== -->
<H2>6. Known Run-Time Problems and Limitations</H2>
For a complete list of outstanding run-time problems and to submit any
problem you may find while running this version of Geant4, please refer
to the
<A TARGET="ext" HREF="https://bugzilla-geant4.kek.jp/">Geant4 Problem
Reporting System</A>.
<P> </P>
<A NAME="7."></A>
<HR>
<!-- ============================================== -->
<H2>7. Compilation Warnings</H2>
There may be a few compilation warnings on some platforms.
We do not believe that any of these lead to incorrect run-time behaviour.
<P> </P>
<A NAME="8."></A>
<HR>
<!-- ============================================== -->
<H2>8. Geant4 Software License</H2>
A Software License applies to the Geant4 code.
Users must accept this license in order to use it.<BR>
The details and the list of copyright holders is available at
<A href="https://cern.ch/geant4/license">https://cern.ch/geant4/license</A>
and also in the text file <TT>LICENSE</TT> distributed with the source code.
<P> </P>
<A NAME="9."></A>
<HR>
<!-- ============================================== -->
<H2>9. Detailed list of changes and fixes</H2>
These are the main new features/fixes included in this release since the
last patched public release (for more detailed lists of fixes/additions,
please refer to the corresponding History files provided in most packages):
<P> </P>
<A NAME="conf-notes">
<H3><I>Configuration</I></H3></A>
<UL>
<LI><U>CMake</U>
<UL>
<LI>Set default configuration to use Qt6 when selecting Qt support.
User must set <TT>GEANT4_USE_QT_QT5</TT> to force find/use of Qt5.</LI>
<LI>Support creation of categories that are just an interface to other
categories. Needed to support splitting of libraries whilst retaining
old target names for backward link/build compatibility.</LI>
<LI>Include external categories (G4zlib etc) in link resolution for unit
test executables.</LI>
<LI>Export CMAKE_EXPORT_COMPILE_COMMANDS setting from toolkit to the build
of any test done by geant4_add_test to assist use of clang-tidy and
other tooling.</LI>
<LI>Add ENVIRONMENT to any build step of geant4_add_test for consistency
and to allow easier propagation of additional build settings.</LI>
<LI>Added option to add shorten-64-to-32 warning to command line macOS
build flags to match Xcode.</LI>
<LI>Updated clang-format settings and removed obsolete G4ClangFormat module.
Use of clang-format will be through IDEs or pre-commit rather than build
system going forward.</LI>
<LI>Removed all references to HepRepFile and Qt3D visualisation drivers.</LI>
<LI>New data sets <TT>G4PhotonEvaporation-6.1.2</TT>,
<TT>G4CHANNELING-2.0</TT>, <TT>G4INCL-1.3</TT>,
<TT>G4EMLOW-8.8</TT>, <TT>G4PARTICLEXS-4.2</TT>.</LI>
<LI>Updated tag-IDs for 11.4.</LI>
</UL></LI>
<LI><U>GNUmake</U>
<UL>
<LI>Updated system scripts for Qt settings: set Qt6 as default.</LI>
<LI>Correction in generation of geant.[c]sh and geant4.bat on Windows.</LI>
<LI>Replaced linking to <TT>G4processes</TT> library with linking to the
two components it has been split into.</LI>
<LI>Removed all references to HepRepFile and Qt3D visualisation drivers.</LI>
</UL></LI>
</UL>
<A NAME="ana-notes">
<H3><I>Analysis</I></H3></A>
<UL>
<LI>New implementation of generic 'G4Analysis::GetHnType()' and 'IsProfile()'
functions, which do not rely on the histogram/profile name position in
the long type name provided via tools 's_class()'.</LI>
<LI><U>Internal changes</U>:
<UL>
<LI>Modernized g4tools macro-based for loops with range-based for.</LI>
<LI>Use current non-deprecated g4tools n-tuple columns interface in XML.</LI>
</UL></LI>
<LI><U>Fixes</U>:
<UL>
<LI>Fix in G4THnMessenger; improved top directory description:
this fixes "...Title not available..." description in the command tree.</LI>
<LI>In G4VAnalysisManager, fixed Coverity reported defect in
<TT>SetNtupleManager()</TT>: added protection against de-reference
of potentially null field.</LI>
<LI>Added a protection against a call to non-existing n-tuple manager in
G4VAnalysisManager. Fixes a problem happening when all created n-tuples
are inactivated and a file is not open.</LI>
</UL></LI>
</UL>
<A NAME="digits-notes">
<H3><I>Digitization &amp; Hits</I></H3></A>
<UL>
<LI>Implemented mechanism to weight score in G4VPrimitiveScorer.
The weighting is activated with 'scoreWeighted' option (default is off).
The applied weighting function is defined via std::function which can be
set via a new setter method. The weighting function is taken into account
only in the G4PSCellFlux scorer type.</LI>
</UL>
<A NAME="emstd-notes">
<H3><I>Electromagnetic Processes</I></H3></A>
<UL>
<LI><B>Adjoint</B>
<UL>
<LI>In G4ContinuousGainOfEnergy, updated signature of
<TT>CorrectionsAlongStep()</TT>.</LI>
<LI>Fixed compilation warning on Intel/icx compiler for overlapping
comparison on condition in G4AdjointAlongStepWeightCorrection.</LI>
</UL></LI>
<LI><B>DNA</B>:
<UL>
<LI>Added new G4DNARuddIonisationDynamicModel, which uses charge from
G4DynamicParticle. The model is applicable for all ions.</LI>
<LI>G4DNABornIonisationModel: new implementation of the Born model using
G4DNASamplingTable class; use stationary and fast flags from EM
parameters.</LI>
<LI>G4DNARuddIonisationModel, G4DNABornIonisationModel1 and
G4DNABornIonisationModel2: fixed definition of the stationary code via
G4EmParameters.</LI>
<LI>Extended G4DNAELSEPAElasticModel up to <TT>10 MeV</TT> for water.
Requires new data-set G4EMLOW-8.8.</LI>
<LI>Force cross-section to zero below limit of validity of
G4DNACPA100ElasticModel.</LI>
<LI>G4DNASamplingTable, new class allowing the sharing of sampling data
between threads.</LI>
<LI>Enabled atomic de-excitation in stationary regime for Rudd and Born
models.</LI>
<LI>Updated IRT-syn model for high LET applications.
Fixed the IRT_syn model (Stepper) to ensure it does not use minTimeStep
(default = 1 ps) when DNA reactions do not yet share the same
minTimeStep (used to optimize the chemistry).</LI>
<LI>Fixed the missed Equilibrium process in G4DNAMakeReaction for
particle-based models (SBS, IRT_syn).</LI>
<LI>Correction in the G4DNAScavengerProcess for IRT-syn model.</LI>
<LI>Created G4ChemReboundTransportation to handle the rebound transportation
of the molecule.</LI>
<LI>Replaced the G4MoleculeCounter singleton with G4MoleculeCounterManager
for managing counters.</LI>
<LI>Replaced <TT>shared_ptr</TT> with <TT>unique_ptr</TT> and raw for
manager counters.</LI>
<LI>In G4PhysChemIO, removed dependency on <TT>analysis</TT> module.</LI>
<LI>Deleted exception of no reactant (or reactions for the defined molecules)
that should return nullptr for no reaction data.</LI>
</UL></LI>
<LI><B>Low Energy</B>
<UL>
<LI>G4LivermorePhotoElectricModel: reorganisation of initialisation and
data destruction.</LI>
<LI>In G4AtomicTransitionManager, G4UAtomicDeexcitation, use
<TT>std::size_t</TT> and few other cosmetic changes.</LI>
<LI>G4IonParametrisedLossModel: updated computation of ion effective charge
according to modifications in electromagnetic/utils.
Addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2664">#2664</A>.</LI>
<LI>G4MicroElecElasticModel_new, G4MicroElecInelasticModel_new,
G4MicroElecLOPhononModel and G4MicroElecSurface: updated models using
more data files.</LI>
<LI>In G4hIonEffChargeSquare, fixed reported Coverity defect.</LI>
<LI>Fixed compilation warnings on Intel/icx compiler for overlapping
comparison on condition in G4eIonisationSpectrum, by removing checks
on numerical condition which never happens.</LI>
</UL></LI>
<LI><B>Muons</B>
<UL>
<LI>G4RiGeMuPairProductionModel, G4RiGeAngularGenerator: fixes to the
angular distribution of electrons and positrons.</LI>
<LI>G4MuPairProduction: enable RiGe model via G4EmParameters.</LI>
<LI>G4MuPairProductionModel, G4MuPairProduction: cleanup for handling
of data.</LI>
</UL></LI>
<LI><B>Pii</B>
<UL>
<LI>Use <TT>const G4String&</TT> in <TT>G4hImpactIonisation::InitializeMe()</TT>
to avoid unnecessary copy, reported by Coverity.</LI>
</UL></LI>
<LI><B>Standard</B>
<UL>
<LI>G4UrbanMscModel: cosmetic change for Opt3 case; minor code improvement
and updated comments to the code. Not affecting any result.</LI>
Simplification of the step limit algorithm for Opt3 (EMY) configuration
of EM physics, slightly improving CPU without degradation of the
accuracy. Changed <TT>geommin</TT> parameter value from <TT>10^-3 mm</TT>
to <TT>10^-6 mm</TT>; this change is effective to EM option3 physics
configuration.</LI>
<LI>G4GoudsmitSaundersonMscModel, G4GoudsmitSaundersonTable,
G4GSMottCorrection, and G4GSPWACorrections: removed all other electron
stepping and boundary crossing algorithms from the Goudsmit-Saunderson
multiple-scattering model, except the accurate one; updated the class
descriptions, no physics change is expected in the Livermore, Penelope and
standard option4 EM constructors while the standard GS constructor now
will be more accurate. The current form of the Goudsmit-Saunderson Msc
model, keeping only its most accurate settings, fully reflects the
corresponding <A HREF="https://arxiv.org/pdf/2410.13361">technical note</A>.</LI>
<LI>G4eBremsstrahlungRelModel, G4PairProductionRelModel: simplifed handling
of LPM functions by precomputing and factoring the related data to a
new G4LPMFunction (header only) utility.</LI>
<LI>G4eDPWACoulombScatteringModel, G4eDPWAElasticDCS: fixed some of the
mixed simulation mode functionalities of the numerical ELSEPA DCS based
model for e-/e+ Coulomb scattering (which are still not utilised).</LI>
<LI>Added G4LowPAIH2O model for dE/dx in water for p and e-.</LI>
<LI>Reverted changes introduced in release 11.3 for static data
initialization in G4eBremsstrahlungRelModel.</LI>
<LI>G4BraggModel, G4BraggIonModel, G4BetheBlochModel, G4AtimaEnergyLossModel,
G4LindhardSorensenIonModel and G4LowPAIH2O: store ion effective charge
square in each model, allowing to compute dEdx by G4EmCalculator.
Addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2664">#2664</A>.</LI>
<LI>G4BraggIonGasModel, G4BetheBlochIonGasModel: fixed computation of
dynamic charge.</LI>
<LI>G4BraggModel: fixed two compound formula typos in MolecIsInZiegler1988
for methanol and chlorotrifluoromethane. Restored application of the
ChemicalFactor for these compounds.</LI>
<LI>G4eplusAnnihilation: added positronium lifetime, which was forgotten.</LI>
</UL></LI>
<LI><B>Utils</B>
<UL>
<LI>New base class G4VXRayModel for X-ray processes. Adapted classes
G4OpticalParameters, G4OpticalParametersMessenger and G4LossTableManager
to configure and use G4VXRayModel.</LI>
<LI>G4EmParametersMessenger: added UI command to enable/disable 5D pair
production model by muons.</LI>
<LI>G4EmUtility, G4EmDataHandler, G4EmDataRegistry: removed minor memory
leaks and improved destruction at exit.</LI>
<LI>G4EmParameters, G4EmParametersMessenger, G4EmUtility, G4LossTableBuilder,
G4VEnergyLossProcess: implemented new option to enable/disable
fluctuation of energy loss per G4Region.</LI>
<LI>G4EmParameters, G4EmLowEParameters: added DNA upper limits in energy.</LI>
<LI>G4VEmProcess: added call to StartTracking(..) for all used models,
which need access to G4Track pointer.</LI>
<LI>G4VEmProcess, G4VEnergyLossProcess, G4EmDataHandler, G4EmDataRegistry:
cleanup handling of tables; removed unused methods and headers.</LI>
<LI>G4EmCalculator: provided computation of dEdx for ions.
Addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2664">#2664</A>.</LI>
<LI>G4VEmModel, G4VEnergyLossProcess: changed signature of the method
<TT>CorrectionsAlongStep()</TT> to something more convenient for
G4EmCalulator.</LI>
<LI>G4OpticalParameters, G4OpticalParametersMessenger: introduced
configurable options to offload the generation of optical photons for
the Cerenkov and Scintillation processes.</LI>
<LI>G4OpticalParameters: added QuasiCerenkov and QuasiScintillation in the
process activation map.</LI>
<LI>G4VXRayModel, G4OpticalParameters: added extra methods needed for new
Cerenkov processes and models.</LI>
</UL></LI>
<LI><B>Xrays</B>
<UL>
<LI>In G4Scintillation, build the scintillation integral tables for
materials that have non-empty material property tables and added
method BuildInverseCdfTable(). Relocate loop-invariant variables
outside the photon generation loop.</LI>
<LI>In G4Cerenkov, build the Cerenkov integral only for materials that
have non-empty material property tables. Relocate loop-invariant
variables outside the photon generation loop.</LI>
<LI>Added physics model catalog IDs and class descriptions for
G4QuasiCerenkov and G4QuasiScintillation.</LI>
<LI>Added G4QuasiScintillation, adding offloading capability for
scintillation photon generation.</LI>
<LI>Added G4QuasiCerenkov, adding offloading capability for Cerenkov photon
generation.</LI>
<LI>Added new classes G4GeneralCerenkov and G4StandardCerenkovModel with the
first implementation of the model approach for X-Ray processes G4Cerenkov,
G4Scintillation and G4GeneralCerenkov; fixed <TT>IsApplicable()</TT>
method for UnknownParticle type; use dynamic charge and kinematics for
these processes.</LI>
<LI>Added class G4ScintillationQuasiTrackInfo, a concrete implementation of
G4VAuxiliaryTrackInformation used to store metadata associated with a
quasi-scintillation track generated during the scintillation process.</LI>
<LI>Added new class G4CerenkovQuasiTrackInfo, a concrete implementation of
G4VAuxiliaryTrackInformation used to store metadata associated with a
quasi-Cerenkov track generated during the Cerenkov process.</LI>
<LI>Added G4QuasiOpticalData, a common data structure used for Cerenkov and
Scintillation photon sampling.</LI>
</UL></LI>
</UL>
<A NAME="event-notes">
<H3><I>Event</I></H3></A>
<UL>
<LI>G4EventManager: enabling to receive next sub-event before completing the
current sub-event when used in the worker thread of sub-event parallel mode.</LI>
<LI>G4Event, G4SubEvent: added some flags and pointers to enable the above.</LI>
<LI>G4AdjointPrimaryGenerator: made it G4ThreadLocal and added <TT>GetInstance()</TT>
method to fix a bug in Reverse MC simulation in MT mode.</LI>
</UL>
<A NAME="externals-notes">
<H3><I>Externals</I></H3></A>
<UL>
<LI><U>G4tools</U>:
<UL>
<LI>Updated to version 8.0.0</LI>
<LI>Updated tools from OpenGL-1.1 to OpenGL-3.2, enabled by setting macro
TOOLS_USE_GL_VERSION_3_2. Fixed rendering for G4Polymarker dots on macOS.
In Qt,X11,Xt,Windows, enforce immediate rendering in event loop
processing.</LI>
<LI>Implemented windows_size and render_area_size methods; fixed setting of
mouse position in the wheel_rotation_event. Handle the shift and control
modifiers in the mouse_[down,up,move]_event and wheel_rotation_event.</LI>
<LI>In glarea, in <TT>mouseMoveEvent()</TT> for Qt5, corrected a bad
cut/paste when creating the mouse_move_event.</LI>
<LI>In *ntuple, fix in the initialise() method, to switch from "warning" to
"error" and return false if the name of a booking column is not found
in the file. Addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2657">#2657</A>.</LI>
<LI>Removed obsolete <TT>tools::mem</TT> class and TOOLS_MEM blocks that
use it.</LI>
<LI>Rationalised main headers by merging related functionality.</LI>
<LI>Removed unused classes, class member functions/data members.</LI>
<LI>Removed additional headers, free functions no longer used.</LI>
<LI>Removed unused functions and headers.</LI>
<LI>Removed no longer required <TT>cmem_alloc_copy()</TT> function.</LI>
<LI>Removed commented out blocks and never touched preprocessor blocks.</LI>
<LI>Added <TT>tools/sg/shade_model</TT> node to handle Gouraud shading.</LI>
<LI>Fixes to avoid cases of "ToolsSG-ZB too much zoom in" crash.</LI>
</UL></LI>
<LI><U>Zlib</U>:
<UL>
<LI>Updated <TT>zlib</TT> to version 1.3.1. Prior Geant4 patches are
retained.</LI>
</UL></LI>
</UL>
<A NAME="gen-notes">
<H3><I>General Processes</I></H3></A>
<UL>
<LI><B>Biasing</B>
<UL>
<LI>Fixed initialisation in G4ParticleChangeForNothing, responsible for
crash when enabling track verbosity.</LI>
</UL></LI>
<LI><B>Optical</B>
<UL>
<LI>G4OpBoundaryProcess: refactored code for readability and efficiency.
Reuse local variables for trigonometric and exponential function results,
as well as other repeated expressions. Improved code readability by
replacing simple if-else clauses with ternary operators and made other
minor rearrangements. Replaced <TT>h_Planck*c_light</TT> with a static
function for clarity and reuse. Refactored boundary handling at
dielectric-dielectric interfaces by replacing goto with a do-while loop
to improve readability. Extracted transmission logic into a new inline
function <TT>DoTransmission()</TT> and introduced <TT>constexpr</TT>
helper <TT>IsBackpainted()</TT> to identify backpainted surfaces.</LI>
<LI>In G4OpMieHG, removed redundant <TT>acos()/cos()</TT> calls in angular
sampling to improve performance and readability.</LI>
<LI>G4OpWLS, G4OpWLS2: improved WLS photon energy sampling; enforce energy
below the primary photon's energy.</LI>
</UL></LI>
</UL>
<A NAME="geo-notes">
<H3><I>Geometry</I></H3></A>
<UL>
<LI>Reorganised and enriched comments in headers to follow Doxygen style.</LI>
<LI>Applied clang-tidy fixes.</LI>
<LI><B>Biasing</B>
<UL>
<LI>Removed empty source files for G4VGCellFinder, G4VImportanceAlgorithm,
G4VImportanceSplitExaminer, G4VIStore, G4VWeightWindowStore and
G4VWeightWindowAlgorithm.</LI>
</UL></LI>
<LI><B>Divisions</B>
<UL>
<LI>Removed unused data in G4VDivisionParameterisation.</LI>
</UL></LI>
<LI><B>Magnetic Field</B>
<UL>
<LI>Updated implementation of QSS integration method to QSS version-2.</LI>
<LI>Made QSS3 a choice in G4ChordFinder and G4QSSMessenger.</LI>
<LI>Addressed Coverity issues (memory leak, initialisation) in G4QSStepper
and G4QSSubstepStruct. In G4QSStepper, cleanup of constructors.</LI>
<LI>Make consistent use of the parameters introduced in G4FieldParameters
in field classes: extracted default parameters values as constexpr in
new namespace G4FieldDefaults, so that they can be used in other classes
as default parameters in functions declarations; replaced default values
in G4FieldManager and G4ChordFinder with G4FieldDefaults constants.</LI>
<LI>Added functions for accessing the field, stepper and equation types
using the enum types defined in G4FieldParameters.</LI>
<LI>Updated enums G4EquationType and G4StepperType with missing constants
with a comment that these equations/templated steppers are not built by
G4FieldBuilder.</LI>
<LI>Renamed <TT>StepperType()</TT> in G4DormandPrince745 to
<TT>StepperTypeName()</TT>.</LI>
<LI>Moved inline implementations to .icc file for G4ChargeState and for
G4FieldParameters.</LI>
<LI>Removed not implemented methods in G4ChordFinder, G4DoLoMcPriRK34 and
G4FieldSetup.</LI>
<LI>Minor code cleanup and formatting.</LI>
</UL></LI>
<LI><B>Management</B>
<UL>
<LI>Enabled voxelisation parallelism by default in G4GeometryManager, when
MT/tasks are enabled. Enabled also for potential 2nd (and later) calls
in runs after geometry was changed.</LI>
<LI>G4VSolid: set seed in <TT>EvaluateCubicVolume()</TT> and
<TT>EvaluateSurfaceArea()</TT> to ensure reproducibility of the
resulting value.</LI>
<LI>G4GeomTools: added functions <TT>HyperboloidSurfaceArea()</TT>,
<TT>HypeStereo()</TT> and <TT>TwistedTubeBoundingTrap()</TT>.</LI>
<LI>Removed empty source files for G4ErrorSurfaceTarget and
G4ErrorTanPlaneTarget.</LI>
<LI>Moved inline implementations to .icc file for G4UAdapter.</LI>
</UL></LI>
<LI><B>Navigation</B>
<UL>
<LI>Extended UI command <TT>/geometry/test/run</TT> to support optional
overlap check mode: depending on the selected mode, it invokes either
<TT>TestRecursiveOverlap</TT> (default and original algorithm) or
<TT>TestOverlapInTree</TT>, allowing to check for overlaps in the
volume tree without duplication in identical logical volumes.</LI>
<LI>Removed declared but not implemented methods in G4VoxelNavigation,
G4ParameterisedNavigation, G4VoxelSafety and G4PathFinder.</LI>
</UL></LI>
<LI><B>Solids (Boolean)</B>
<UL>
<LI>G4MultiUnion: fix in <TT>GetSurfaceArea()</TT> and some optimisation
to use <TT>G4QuickRand()</TT>. In <TT>GetLocalPoint()</TT>,
<TT>GetLocalVector()</TT>, <TT>GetGlobalPoint()</TT> and
<TT>GetGlobalVector()</TT>, make direct usage of the transformation
matrix elements. Removed declared but not implemented methods
and moved inline implementations to .icc file.</LI>
<LI>Fixed potential thread-safety issue in <TT>GetCubicVolume()</TT> and
<TT>GetSurfaceArea()</TT> on Boolean solids in case those functions
are called from worker threads.</LI>
<LI>Removed declared but not implemented method in G4ScaledSolid.</LI>
</UL></LI>
<LI><B>Solids (CSG)</B>
<UL>
<LI>G4Box: code restructuring in <TT>DistanceToOut()</TT> methods.
Optimised normal calculation in <TT>DistanceToOut()</TT>.</LI>
<LI>G4Orb: provide faster algorithm in <TT>GetPointOnSurface()</TT>.</LI>
<LI>G4Para: speedup calculation of surface area in <TT>GetSurfaceArea()</TT>
and <TT>GetPointOnSurface()</TT>.</LI>
<LI>G4Box, G4Para, G4Trd: code optimization in <TT>GetPointOnSurface()</TT>.</LI>
<LI>G4Torus: implemented uniform sampling of random points on surface.</LI>
<LI>Fixed potential thread-safety issue in <TT>GetCubicVolume()</TT> and
<TT>GetSurfaceArea()</TT> on all solids in case those functions
are called from worker threads.</LI>
</UL></LI>
<LI><B>Solids (Specific)</B>
<UL>
<LI>G4Ellipsoid, G4EllipticalTube: code optimization in
<TT>GetPointOnSurface()</TT>.</LI>
<LI>G4TessellatedSolid, G4TriangularFacet, G4QuadrangularFacet: use
<TT>G4QuickRand()</TT> for generating points on surface.</LI>
<LI>G4EllipticalCone: code optimization in <TT>GetPointOnSurface()</TT>;
moved setters implementations to source.</LI>
<LI>G4GenericTrap: improved estimation of safety distance by adopting
Lipschitz-based implementation.</LI>
<LI>G4Paraboloid: implemented uniform sampling of random points on surface.</LI>
<LI>G4Hype: revised surface area calculation and random point sampling.
Code optimization in <TT>GetPointOnSurface()</TT>.
Changed static protected functions to private methods.</LI>
<LI>Use <TT>G4QuickRand()</TT> in G4PolyPhiFace, G4PolyconeSide,
G4PolyhedraSide, G4TwistedTubs, G4VCSGfaceted and G4VTwistedFaceted
for sampling points on surface.</LI>
<LI>Fixed potential thread-safety issue in <TT>GetCubicVolume()</TT> and
<TT>GetSurfaceArea()</TT> on all solids in case those functions
are called from worker threads.</LI>
<LI>G4EllipticalCone, G4EllipticalTube, G4Voxelizer: removed unnecessary
headers.</LI>
<LI>Removed virtual specifications from utility class G4ClippablePolygon.</LI>
<LI>Removed unneeded static data/specifications in G4Voxelizer.</LI>
<LI>Moved inline methods definitions of G4TriangularFacet, G4QuadrangularFacet,
G4SurfBits, G4TwistBoxSide, G4TwistTrapParallelSide and G4TwistTrapAlphaSide
to .icc files.</LI>
</UL></LI>
<LI><B>Volumes</B>
<UL>
<LI>Fix to delete the logical skin/border surfaces only if the geometry
is not closed.</LI>
<LI>Moved default destructor definitions to headers.</LI>
<LI>Minor code formatting in headers.</LI>
</UL></LI>
</UL>
<A NAME="glob-notes">
<H3><I>Global</I></H3></A>
<UL>
<LI>G4VSIntegration: added new utility class for integration of probability
density function and dynamically sampling of final state. This is useful
for the case when sampling tables cannot be prepared and stored; instead
computations are performed for each case individually.</LI>
<LI>Added new class G4ExtendedPhysicsVector, a new data structure, which
includes partial cross-sections and methods for random selection of a
partial cross-section channel. The total cross-section is included via
pointer to G4PhysicsVector.</LI>
<LI>G4PhysicsVector, G4PhysicsFreeVector: added a new method <TT>CheckIndex()</TT>
to reduce code duplication; removed tabs from source and headers, extended
comments.</LI>
<LI>Added new class G4FunctionSolver, a new utility to solve equation F(x)=0.</LI>
<LI>G4PhysicsModelCatalog: introduced FTF quasi-elastic and FTF diffraction.
Added model Ids and names for G4QuasiCherenkov and G4QuasiScintillation
processes. </LI>
<LI>Factored common ieee754 union and helper functions out of G4Log and
G4Exp to remove code duplication.</LI>
<LI>G4QuickRand: Added a possibility to set a seed.</LI>
<LI>Fixed data race on std::cout in G4iosFinalization.</LI>
<LI>Updated date of release for 11.4.</LI>
</UL>
<A NAME="greps-notes">
<H3><I>Graphical Representations</I></H3></A>
<UL>
<LI>Re-instated transparency slider in GUI.</LI>
<LI>G4VGraphicsScene: added <TT>fMaxGeometryDepth</TT> data member and
corresponding access functions.</LI>
<LI>In G4Visible, fixed reported Coverity defects in copy constructor and
assignment operator.</LI>
<LI>In G4Att* classes, fixed link to description of HepRep data communication
format (used by G4Atts).</LI>
</UL>
<A NAME="had-notes">
<H3><I>Hadronic Processes</I></H3></A>
<UL>
<LI><B>Cross Sections</B>
<UL>
<LI>G4NeutronInelasticXS, G4ParticleInelasticXS: added download data for
all elements in class constructor, avoiding lazy initialisation at
run-time. No locks are set any longer by these cross-section classes.
For simple applications, the initialisation CPU time increases by
roughly 10%; no effect on complex applications.</LI>
<LI>In G4NeutronInelasticXS, G4NeutronElasticXS and G4NeutronCaptureXS,
split data tables on two parts, low-energy for neutron resonance region
and high energy above this region. This allows to increase accuracy of
neutron cross-sections for non-HP (for example, HEP) applications.
Added extra flag to enable/disable reading and usage of precise data
in resonance region, allowing to reduce RSS memory for simple
applications. For applications requiring higher precision of neutron
transport, the flag should be defined via
<TT>G4HadronicParameters::SetUseRFilesForXS(true)</TT>.</LI>
<LI>G4ChargeExchangeXS: fixed selection of reaction for compound materials;
added extra public and private methods; added extra method for sampling
of scattering angle; updated parameterisation using new fit to data.
Added extra method <TT>SampleTforPion()</TT>, which is based
on the V. Lyubovitsky parameterisation for different reaction
channels.</LI>
<LI>Fixed minor memory leaks in classes G4CrossSectionFactory,
G4CrossSectionFactoryRegistry, G4CrossSectionFactory,
G4ElectroNuclearCrossSection and G4ChipsAntiBaryonElasticXS.</LI>
<LI>G4EMDissociationCrossSection: fixed several technical inaccuracies
in the code, addressing reported Coverity defects and to correctly
use G4Pow.</LI>
<LI>G4ParticleInelasticXS: fixed reported Coverity defect.</LI>
<LI>In G4EMDissociationSpectrum, added protection against beta=0, to fix
reported Coverity defect; correctly use G4Pow.</LI>
<LI>Fixed compilation warning on Intel/icx compiler for overlapping
comparison on condition in G4EMDissociationCrossSection.</LI>
</UL></LI>
<LI><B>Management</B>
<UL>
<LI>G4VHighEnergyGenerator: introduced Boolean methods to know whether the
high-energy hadronic inelastic interaction is quasi-elastic or
diffractive. Note that this can be used for both FTF and QGS hadronic
string models.</LI>
<LI>G4HadronicProcess: removed warning for the case when K0 and anti-K0
are transformed into K0S or K0L. Removed misleading exception.
Addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2675">#2675</A>.</LI>
</UL></LI>
<LI><B>Stopping</B>
<UL>
<LI>G4HadronicAbsorptionINCLXX: the energy max is different for anti-proton
and anti-neutron in INCLXX.</LI>
</UL></LI>
<LI><B>Utilities</B>
<UL>
<LI>G4HadronicParameters: implemented pretty-print to ostream to allow
users to check values at runtime, a-la G4EmParameters (request from
ATLAS). Added extra flag to enable/disable usage of precise
cross-section data for neutrons in resonance energy region.</LI>
<LI>G4IsotopeList: added data on energy interval of neutron resonance
regions per element for Z=1-92.</LI>
</UL></LI>
<LI><B>Abla</B>
<UL>
<LI>Added a new description for fission barriers based on
PRC 111, 064606 (2025).</LI>
</UL></LI>
<LI><B>Bertini Cascade</B>
<UL>
<LI>Fixed compilation warning on Intel/icx compiler for overlapping
comparison on condition in G4BigBanger, fixes typo in the computation
of probability.</LI>
</UL></LI>
<LI><B>De-excitation</B>
<UL>
<LI>Added G4FermiBreakUpAN, new alternative FermiBreakUp model and support
classes, contributed by A. Novikov (Yandex and MIPT) through
<A HREF="https://github.com/Geant4/geant4/pull/84">GitHub PR#84</A>.
The model is based on: J.P. Bondorf et al., Physics Reports,
257(3):133-221.</LI>
<LI>G4FermiBreakUpVI: removed the limit on excitation energy from the
condition of the model applicability, the model become similar to
G4FermiBreakUpAN in this respect.</LI>
<LI>G4ExcitationHandler: moved multi-fragmentation model to be called before
the pre-compound model and not inside G4ExcitationHandler. Interfaces
are preserved. Added deprecation warnings to obsolete methods.</LI>
<LI>G4ExcitationHandler, G4DeexPrecoParameters: updated initialisation
to allow switching between different FermiBreakUp models.</LI>
<LI>G4DeexPrecoUtility: new class, providing common computation, to avoid
code duplication. Use it in classes G4EvaporationProbability,
G4ProtonEvaporationProbability, G4DeuteronEvaporationProbability,
G4TritonEvaporationProbability, G4He3EvaporationProbability and
G4AlphaEvaporationProbability, simplifying code.</LI>
<LI>G4DeexPrecoParameters: added extra enumerator to choose variants of
the pre-compound model. Defined limits maxZ=9, maxA=17 instead of
maxZ=3 maxA=5. Fermi BreakUp models will be used for light fragment
de-excitation, which happens in high energy ion collision with light
targets. Reduced upper limit of energy per nucleon for the
pre-compound model from 30 to 15 MeV, according to the prescription
of Botvina A. S. et al. Nucl. Phys. A, 475:663, 1987.</LI>
<LI>G4NucLevel, G4PhotonEvaporation: use explicit type conversion from
double to float; use const arguments where possible.</LI>
<LI>G4VEmissionProbability, G4EvaporationProbability, G4GEMProbabilityVI:
updated algorithms of integration of probabilities and sampling of
kinetic energy for emitted fragment. Expected more accurate spectra.</LI>
<LI>G4GEMChannelVI, G4EvaporationGEMFactoryVI, G4DeexPrecoParameters: new
GEM de-excitation model with 83 decay channels.</LI>
<LI>In G4GEMChannelVI, use G4DeexPrecoUtils.</LI>
<LI>G4VEmissionProbability: use the new utility class G4VSIntegration,
to simplify code; not affecting results.</LI>
Updated parameters of integration of the probability density function.</LI>
<LI>G4VEmissionProbability, G4EvaporationChannel, G4GEMChannelVI: use
optimised parameters for G4VSIntegrator; initial step <TT>0.15 MeV</TT>
for neutrons, <TT>0.2 MeV</TT> for charged, tolerance from 1.05 to 1.25.
Avoid precision loss for computation of minimal energy of emitted
fragment.</LI>
<LI>In G4PhotonEvaporation, G4VEmissionProbability, check life time of
final excitation level; special treatment for the ground state and the
next level. Addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2660">#2660</A>.</LI>
<LI>In G4EvaporationProbability, fixed computation of inverse cross-section.</LI>
<LI>G4StatMF: always return non-empty vector of final fragments, if
multi-fragmentation is not possible, then it returns the primary
fragment. Cleaned up method of final state energy correction and
Lorentz boost.</LI>
<LI>G4StatMFMicroCanonical: replaced use of hard-coded solver with
G4FunctionSolver. Fixed surface energy computation and removed
unnecessary computations.</LI>
<LI>Multifragmentation models are now using G4FunctionSolver instead of
G4Solver.</LI>
<LI>G4CoulombBarrier, G4DeexPrecoUtils, G4EvaporationFragment,
G4EvaporationProbability and G4EvaporationGEMFactoryVI, use the default
evaporation for neutrons, protons and light ions.</LI>
<LI>Emit fatal exception in G4LevelReader if path to G4LEVELGAMMADATA
is empty.</LI>
<LI>G4LevelReader, G4GammaTransition, G4photonEvaporation: addressing
problem reports
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2672">#2672</A>,
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2588">#2588</A>
and
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2451">#2451</A>.
The vector of IC probabilities is limited by number of levels in an
atom; if in gamma level data all IC transitions are zero, then instead
of K-shell probability, 1.0 is assigned to the last existing level;
electron emission is sampled if nuclear excitation is above the bound
level and if number of electrons on electron shell is above 1;
more accurate sampling of final state using masses of the nucleus plus
masses of electrons from electron shells.</LI>
<LI>G4StatMFMicroCanonical: fixed computation of temperature.</LI>
<LI>G4StatMFMicroPartition: code cleanup, removed non-informative printout,
which can be repeated many times; instead stop MF model and return to
de-excitation handler.</LI>
<LI>General clean-up of the multifragmentation model: fixed equation solver;
made uniform headers and source; reduced number of new/delete operations.</LI>
<LI>Fixed reported Coverity defects.</LI>
<LI>G4CoulombBarrier: some code cleanup.</LI>
<LI>G4Evaporation: improved debug printout.</LI>
</UL></LI>
<LI><B>Elastic scattering</B>
<UL>
<LI>G4ChargeExchange: fixed problem in kinematic computations, allowed
recoil nucleus to be in an excited state. Fixed issue in final state
generation for the case of unstable meson production <TT>omega(782)</TT>
and <TT>f2(1270)</TT>. Implemented angular distribution of pion charge
exchange according to the V.Lubovitsky parameterisation for different
reaction channels.</LI>
<LI>G4ChargeExchange, G4HadronElastic: cleanup final state generation; use
the numerical limit for argument of the exponent to avoid precision
loss; in case of numerical problems force scattering angle to zero (do
not consider scattering backwards); use similar parameterisation and
code for both models. Fixed reported Coverity defect.</LI>
<LI>Fixed cases of non-accurate checks on potential numerical problems in
computing scattering angles in G4NuclNuclDiffuseElastic,
G4DiffuseElastic and G4AntiNuclElastic, addressing compilation warnings
on Intel/icx compiler for overlapping comparison on conditions.</LI>
</UL></LI>
<LI><B>EM Dissociation</B>
<UL>
<LI>G4EMDissociation: fixed reported Coverity defects.</LI>
</UL></LI>
<LI><B>High Energy Theoretical</B>
<UL>
<LI>G4TheoFSGenerator: introduced the ID model identification for FTF
inelastic hadronic interactions that are classified as quasi-elastic
or diffractive. Note that this classification is not available for
the QGS string model.</LI>
</UL></LI>
<LI><B>INCLXX</B>
<UL>
<LI>Extension of the INCLXX model to handle anti-neutron (at rest and
in-flight).</LI>
<LI>Fixed the use of INCL for the reactions anti-neutron + H1/H2 and decay
omega/eta.</LI>
<LI>Fixed reported Coverity defect for use of <TT>std::move()</TT>
in G4INCLCascade.</LI>
<LI>Fixed URL to Root in comments. Fixes
<A HREF="https://github.com/Geant4/geant4/pull/87">GitHub PR#87</A>.</LI>
</UL></LI>
<LI><B>Lend</B>
<UL>
<LI>Major update of GIDIplus interface with refactored C++ code, including
use of official GNDS formatted data.</LI>
<LI>Added feature for high-fidelity gamma cascades following reactions such
as neutron capture and inelastic scattering.</LI>
<LI>Collect all inelastic models (neutron and gamma induced) into
G4HadronPhysicsLEND. Updated and simplified Shielding and
G4EmExtraPhysics accordingly.</LI>
<LI>Fix in G4EmExtraPhysics for failing in loading photonuclear from LEND
if G4GammaGeneralProcess existed.</LI>
<LI>Fix in G4LENDCombinedModel photofission; check energy function was not
connected to the base class, resulting in a crash.</LI>
<LI>Removed the default evaluation string from G4LEND. This change means the
user only needs to update the G4LENDDATA environment variable to switch
to a different nuclear data library.</LI>
<LI>Fixed various Coverity reported defects and implicit conversion
compilation warnings in macOS/XCode.</LI>
</UL></LI>
<LI><B>Nudex</B>
<UL>
<LI>Address maybe-unitialized warnings when building/linking with LTO,
identified by ATLAS.</LI>
</UL></LI>
<LI><B>Particle High Precision</B>
<UL>
<LI>G4ParticleHPThermalScatteringData: attempt to fix reported Coverity
defect on wrong handling of map iterator. Substituted several calls to
G4HadronicExceptions by one G4Exception inside <TT>BuildPhysicsTable()</TT>
method, which provides a fatal exception if a particle is not a neutron.
Simplified <TT>IsApplicable()</TT> methods called at each step; the
directory path is taken from G4ParticleHPManager to reduce number of
calls to <TT>getenv()</TT> function; initialisation is performed only
once in one instance of the class; initialised data structures are saved
to G4ParticleHPManager and are accessed from all threads and instances;
end of job destruction is also performed only once; removed commented
lines and extended comments to code.</LI>
<LI>In G4ParticleHPInelastic, fixed AllHP physics for initialisation of
neutrons and light ions. Addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2591">#2591</A>.</LI>
<LI>G4ParticleHPThermalScattering, G4ParticleHPThermalScatteringData,
G4ParticleHPJENDLHEData: fixed reported Coverity defects for
unprotected access to maps.</LI>
<LI>Fixed reported Coverity defects, mainly in handling of maps and finding
of isotopes.</LI>
</UL></LI>
<LI><B>Parton-String</B>
<UL>
<LI>G4FTFModel, G4DiffractiveExcitation: introduced classification of
quasi-elastic and diffractive interactions among the inelastic
interactions of the FTF string model. In the G4FTFModel class,
the Boolean flags <TT>fIsQuasiElasticInteraction</TT> and
<TT>fIsDiffractiveInteraction</TT> - inherited from the base class
G4VHighEnergyGenerator - are used in the methods <TT>Init()</TT>
and <TT>ExciteParticipants()</TT>. In the class G4DiffractiveExcitation,
an extra, Boolean parameter is added to the method
<TT>ExciteParticipants()</TT> to tag diffractive interactions.</LI>.
</UL></LI>
<LI><B>Pre-equilibrium</B>
<UL>
<LI>New classes G4PreCompoundInterface, G4PreCompoundTransitionInt and
G4PreCompoundEmissionInt with alternative precompound model.</LI>
<LI>G4PreCompoundModel, G4PreCompoundTransition, G4PreCompoundEmission:
added an option to use alternative precompound models, which may be
done via configuration without change of interface to consumer code;
introduced verbose flag and extended printout needed to debug; removed
old commented printout lines.</LI>
<LI>G4PreCompoundModel: multi-fragmentation model is moved from the
G4ExcitationHandler to be called before this pre-compound model for very
hot fragments. Default excitation energy limit is very high, as it was
in the case of G4ExcitationHandler. Increased limit of the pre-compound
loop from 100 to 300 to suppress rare warnings seen in validation
benchmarks. Send to evaporation all fragments with excitation
energy exceeding energy limit.</LI>
<LI>G4PreCompoundFragment, G4PreCompoundNucleon, G4PreCompoundIon: updated
computation of inverse cross-section; added factor to cross-section.</LI>
<LI>G4VPreCompoundFragment, G4PreCompoundFragment, G4HETCFragment: use the
new utility class G4VSIntegration, to simplify code; not affecting
results.</LI>
<LI>G4VPreCompoundFragment: optimised initial step of integrator from
<TT>1 MeV</TT> to <TT>0.5 MeV</TT>; increased tolerance from 1.05
to 1.1.</LI>
<LI>G4PreCompoundFragment, G4PreCompoundProton, G4PreCompoundDeuteron,
G4PreCompoundTriton, G4PreCompoundHe3, G4PreCompoundAlpha: use new
utility class G4DeexPrecoUtility.</LI>
</UL></LI>
<LI><B>QMD</B>
<UL>
<LI>G4QMDReaction and G4LightIonQMDReaction: added random rotation of the
momentum around the z-axis to solve the directional bias of the momentum
of the secondary particles.</LI>
<LI>Fixed reported Coverity defect for potential division by zero.</LI>
</UL></LI>
<LI><B>Quasi Elastic</B>
<UL>
<LI>Fixed compilation warning on Intel/icx compiler for overlapping
comparison on condition in G4QuasiElRatios.</LI>
</UL></LI>
</UL>
<A NAME="interc-notes">
<H3><I>Intercoms</I></H3></A>
<UL>
<LI>In G4UImanager and G4UIcontrolMessenger, introducing <TT>@@</TT> keyword that
can be placed in any UI command taking a macro file name. It creates a
temporary macro file with defined commands until the
<TT>/control/endRecord</TT> command is specified. The <TT>@@</TT> mechanism
works recursively. If a file name is enclosed in a pair of <TT>@</TT>, that
macro file is created. The mechanism works for both interactive mode and
batch mode. When used in interactive mode with Qt GUI, one can use up-arrow,
tab-key and clickable menu in left-side bar to complete a command.</LI>
</UL>
<A NAME="interf-notes">
<H3><I>Interfaces</I></H3></A>
<UL>
<LI>G4UIQt: re-instated transparency slider.
Introduced Time Window tab. This exploits generic time windowing
recently introduced in visualisation. Currently, it doesn't work with
OGL in Qt6. The TSG visualisation driver works fine with both Qt5 and
Qt6, except line width is not implemented.
Simplified and improved touchable dump, using QScrollArea instead of
QMessage. Improved pick info window size.
Added icon to reset camera and improved base size of MainWindow.
In scene tree, simplified interaction for visibility of touchables.
Intercept the case of "help" with argument; write guidance to output
window; avoid undiagnosed crash with Qt6.
Fixed link and add "Action" guidance table in "Useful tips".
Added methods to update the control widgets; moved transparency
slider radio buttons to be class members; added icon for point cloud surface
style; added icon to reset target point; changed behavior of the icon "Reset
camera" to avoid popup window with dedicated call back; improved picking
behavior avoiding opening picking window when picking is enabled; fixed
icons selection behaviour and syncronisation.</LI>
<LI>In G4VInteractiveSession, added <TT>UpdateDrawingStyle()</TT>,
<TT>UpdateProjectionStyle()</TT> and <TT>UpdateTransparencySlider()</TT>
virtual methods to update the control widgets.</LI>
<LI>In CMake script, handle -DTOOLS_USE_GL_VERSION_3_2 in case of
GEANT4_USE_VTK.</LI>
<LI>General code tidy.</LI>
</UL>
<A NAME="materials-notes">
<H3><I>Materials</I></H3></A>
<UL>
<LI>Fixed several typos in crystallographic formulae: corrected orthorhombic
interplanar angle cosine formula; corrected cubic interplanar angle cosine
formula; corrected orthorhombic branch of GetRecIntSp2() function; corrected
triclinic cell volume formula.</LI>
<LI>Fixed initialisation problem in G4ICRU90StoppingData.
Addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2663">#2663</A>.
<LI>In G4AtomicFormFactor, corrected k conversion and <TT>4*pi</TT> factor.</LI>
<LI>Fixed s computation in Cromer-Mann form to:
<TT>s = (k * 1e-7) / (4*pi) (k in mm^-1)</TT>.</LI>
<LI>G4ElementData, G4ElementDataRegistry: code cleanup and added extra method.</LI>
</UL>
<A NAME="parameterisations-notes">
<H3><I>Parameterisations</I></H3></A>
<UL>
<LI>Channeling:
<UL>
<LI>Introduced reading from an input file of custom internal geometry of
a periodically bent crystal which also works, if necessary, with multiple
input files, each per logical volume of an oriented crystal.</LI>
<LI>Introduced various types of radiation virtual collimators in
G4BaierKatkov.</LI>
<LI>Deleted redundant code setting up the defaults of angular and low
energy cuts in G4ChannelingFastSimModel.</LI>
<LI>Polishing of the code according to guidelines.</LI>
</UL></LI>
</UL>
<A NAME="part-notes">
<H3><I>Particles</I></H3></A>
<UL>
<LI>Updated particle properties to PDG-2025. Scanned all mesons and baryons,
including their resonances; updated mass, decay width, and lifetime for the
following particles: mesons - G4AntiBsMesonZero, G4BsMesonZero, G4Etac,
G4Eta, G4JPsi, G4Upsilon; baryons - G4AntiSigmabMinus, G4AntiSigmabPlus,
G4LambdacPlus, G4OmegacZero, G4XicZero; resonances - G4ExcitedSigmaConstructor,
G4ExcitedLambdaConstructor, G4ExcitedNucleonConstructor,
G4ExcitedMesonConstructor, mesons and baryons implemented in
G4ShortLivedConstructor.</LI>
<LI>Added new class G4QuasiOpticalPhoton, a non-physical particle definition
designed to encapsulate the conditions for generating a burst of optical
photons in processes such as scintillation or Cerenkov radiation.</LI>
</UL>
<A NAME="pers-notes">
<H3><I>Persistency</I></H3></A>
<UL>
<LI>GDML:
<UL>
<LI>Fix to pre-pend <TT>0x</TT> string before the address when writing
entities on Windows platform. Addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2322">#2322</A>.</LI>
</UL></LI>
</UL>
<A NAME="lst-notes">
<H3><I>Physics lists</I></H3></A>
<UL>
<LI><B>Builders</B>:
<UL>
<LI>In G4HadronPHPBuilder, G4ParticleHPCapture and G4ParticleHPCaptureData
are replaced by G4NeutronRadCaptureHP and G4NeutronHPCaptureData,
respectively.
The first allows the use of the full list of updated PhotonEvaporation
data set, while for the second it is only a change of the name, the
data are the same. Addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2660">#2660</A>.</LI>
<LI>G4HadronicBuilder: added the possibility to use anti-neutron by INCLXX.</LI>
<LI>Code cleanup in G4AntiBarionBuilder and G4VAntiBarionBuilder.</LI>
</UL></LI>
<LI><B>Constructors</B>:
<UL>
<LI><U>electromagnetic</U>:
<UL>
<LI>G4OpticalPhoton: added G4QuasiOpticalPhoton to support offloading of
optical photon generation.</LI>
<LI>In G4OpticalPhysics, instantiate a process only if it is activated;
added option to instantiate the new G4GeneralCerenkov process.</LI>
<LI>G4GeneralGammaProcess: updated destructor according to modification
in electromagnetic/utils.</LI>
<LI>Updated G4EmStandardPhysicsGS according to the changes in the GS
multiple scattering model, the standard GS EM constructor is
expected to optionally provide accurate e-/e+ simulations now
(similar accuracy as in Livermove, Penelope and option 4).</LI>
<LI>G4EmDNABuilder: use G4DNABornIonisationModel1 for proton ionisation.
For Opt8 configuration, use the same configuration of models for e-
and protons as in Opt2. Restored usage of Born model of ionisation
in the energy interval <TT>0.5 - 100 MeV</TT>. Use Rudd extended
model for light ions in all physics configurations instead of old
Rudd model, which should improve CPU performance; increased
low-energy limit to <TT>11 eV</TT> for the CPA100 elastic scattering
model. Use upper energy limits from G4EmParameters.</LI>
<LI>In all DNA constructors the upper limit for DNA models for ions is
set to <TT>300 MeV</TT> instead of <TT>400 MeV</TT>; for
increase/decrease processes it is set to <TT>100 MeV</TT>; for
ionisation of hydrogen it is set to <TT>100 MeV</TT>.</LI>
<LI>G4EmDNAPhysics_option4, G4EmDNAPhysics_option6,
G4EmDNAPhysics_option8: use fast option for a significant speedup
of physics.</LI>
<LI>G4EmDNAPhysics_stationary_X constructors: added deprecation warning,
indicating that these constructors are now obsolete.</LI>
<LI>G4EmDNABuilder, G4EmDNAPhysicsActivator: introduced usage of the
new ion ionisation model in DNA Opt8 physics configuration.</LI>
<LI>G4EmDNAPhysics, G4EmDNAPhysics_option2, G4EmDNAPhysics_option4,
G4EmDNAPhysics_option6, G4EmDNAPhysics_option8: updated interface to
G4EmDNABuilder.</LI>
</UL></LI>
<LI><U>gamma_lepto_nuclear</U>:
<UL>
<LI>G4EmExtraPhysics: removed LEND photo-nuclear; it is now selected by
G4HadronPhysicsLEND.</LI>
</UL></LI>
<LI><U>hadron_elastic</U>:
<UL>
<LI>In G4ChargeExchangePhysics, fixed usage of the messenger.</LI>
</UL></LI>
<LI><U>hadron_inelastic</U>:
<UL>
<LI>G4Hadron_PhysicsQGS_BIC, G4Hadron_PhysicsQGSP_BIC_HP and
G4Hadron_PhysicsQGSP_BIC_AllHP: uniform instantiation of neutron
and proton physics; enable NuDEX via hadronic parameters for
neutron capture in QGSP_BIC_HP and QGSP_BIC_AllHP; code cleanup.</LI>
<LI>G4HadronicPhysicsQGSP_BIC_HP and G4HadronicPhysicsQGSP_BIC_AllHP
inherits from G4HadronicPhysicsQGSP_BIC. The size of the classes
have been significantly reduced due to the removal of duplicated
code.</LI>
<LI>In G4HadronPhysicsQGS_BIC, do not use QGS/Binary and FTF/Binary
models for pions and kaons.</LI>
<LI>G4HadronPhysicsShielding: technical clean-up: removed unused
headers, fixed constructors and destructors.</LI>
<LI>In G4HadrocPhysicsQBBC, disabled General Neutron Process.
Addressing problem reports
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2558">#2558</A>
and
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2559">#2559</A>.</LI>
<LI>Added G4HadronPhysicsLEND to define neutron and photon induced
processes from LEND.</LI>
<LI>G4HadronPhysicsShielding: removed LEND neutron process, now selected
by G4HadronPhysicsLEND.</LI>
<LI>G4HadronPhysicsQGSP_BERT_HP: minor code cleanup.</LI>
</UL></LI>
</UL></LI>
<LI><B>Lists</B>:
<UL>
<LI>G4PhysListFactory: prevent fallback to default physics list when an
invalid name is provided. Now, if a user specifies an unknown physics
list, Geant4 will throw a fatal error instead of silently using
FTFP_BERT. This ensures that users are aware of incorrect configurations
and helps preventing unintended simulation results.
Allowed definition of the EM standard physics Opt0 on top of any
reference Physics List (which provides a simpler EM physics treatment);
improved printout for the HP case, and now the EMZ option is printed out
in the name.</LI>
<LI>In QBBC physics list, added G4ChargeExchangePhysics.</LI>
<LI>In Shielding physics list, simplified the handling of inelastic models
and moved all LEND hadronic inelastic processes to G4HadronPhysicsLEND.</LI>
</UL></LI>
</UL>
<A NAME="run-notes">
<H3><I>Run</I></H3></A>
<UL>
<LI>Enabled worker threads to receive next sub-event before completing the
current sub-event in G4WorkerSubEvtRunManager. Some code cleanup.</LI>
<LI>Fix in <TT>G4RunManager::ReinitializeGeometry()</TT>; the logical
skin/border surfaces (used for optical physics) contain pointers to
logical/physical volumes that are deleted when the geometry is reset.
Resetting the geometry will now also clear these surface tables.</LI>
<LI>Introducing UI commands to limit number of warning messages to be
printed out.</LI>
<LI>Added some verbose level checks to G4TaskRunManager and G4SubEvtRunManager
to reduce printouts.</LI>
<LI>In G4PhysicsListHelper, changed ordering of processes: for X-Ray production
use ordering parameter 100 for post step instead of 1000; fixed ordering
for muon capture at rest.</LI>
<LI>G4VModularPhysicsList: deleted confusing printout if the same physics type
is substituted.</LI>
<LI>In G4AdjointPrimaryGeneratorAction, removed pointer attribute on
G4AdjointPrimaryGenerator and call it by the static <TT>GetInstance()</TT>
method to fix a bug in Reverse MC simulation in MT mode.</LI>
</UL>
<A NAME="track-notes">
<H3><I>Track &amp; Tracking</I></H3></A>
<UL>
<LI>G4VTrajectory and G4VTrajectoryPoint: added caching of G4AttValues.
<TT>GetAttValues()</TT> returns a <TT>shared_ptr</TT> that points to the
object created by <TT>CreateAttValues()</TT> if not already created.
Thus acts as a cache. Protected copy and move constructors and copy and
move assignment operators.</LI>
<LI>G4RichTrajectoryPoint: added accessors for Pre/PostStepPointGlobalTime.
This allows fast access for time windowing feature of trajectory modeling.</LI>
</UL>
<A NAME="vis-notes">
<H3><I>Visualization</I></H3></A>
<UL>
<LI><B>General</B>
<UL>
<LI>Make the TSG driver the "flagship" visualization driver.
In G4VisExecutive, make nickname/alias OGL synonymous with TSG and make
TSG the default for selection by build flags.</LI>
<LI>Removed HepRepFile and Qt3D visualisation drivers, no longer viable to
develop and maintain.</LI>
</UL></LI>
<LI><B>Management</B>
<UL>
<LI>Re-instated the transparency slider; re-implemented it in a generic way,
i.e., for all drivers; uses a new UI command:
<TT>/vis/viewer/set/transparencyByDepth</TT>.
G4UIQt issues this command on signals from the slider. The user may,
of course, use this command directly.</LI>
<LI>Split scene processing into its "permanent" (run-duration models) and
"transient" (end-of-event and end-of-run models) parts.
This allows to update just the transient part, e.g., trajectories,
which we might want to display in a different way, leaving the
permanent part (e.g., detector) unchanged, avoiding unnecessary
re-processing. This is exactly the situation for time windowing - the
detector does not change, the trajectories also actually do not change,
just the way they are drawn changes.</LI>
<LI>G4VSceneHandler: introduced <TT>ProcessTransients()</TT> virtual function.
Moved pertinent code from <TT>ProcessScene()</TT> to
<TT>ProcessTransients()</TT>.
Copied time parameters into modeling parameters.
Calculate and maintain <TT>fMaxGeometryDepth</TT>, new base class data
member. Enforce the new marker policy in <TT>GetMarkerSize()</TT>.
Improved some diagnostic printing.</LI>
<LI>G4VViewer: introduced <TT>ProcessTransients()</TT> method.
Follow changes in G4PhysicalVolumeModel.
Initialise <TT>fTransientsNeedRedrawing</TT> to <TT>false</TT>.
Previously, this was initialised <TT>true</TT>, but it is up to the
viewer to decide if transients (trajectories) need redrawing.
Added <TT>ZoomFromMouseWheel()</TT> function to control mouse wheel
behavior; added virtual methods to get window size, render area size and
scene near width; implemented ZoomToCursor algorithm to zoom toward the
mouse cursor. General optimization of zoom behavior with mouse wheel.
Added Shift key modifier to change zoom mode in perspective projection
from Dolly (default) to zoomFactor. Changed Shift key modifier behavior
to enable ZoomToCursor while pressed.
Added <TT>UpdateGUIControlWidgets()</TT>, <TT>UpdateGUIDrawingStyle()</TT>,
<TT>UpdateGUIProjectionStyle()</TT> and <TT>UpdateGUITransparencySlider()</TT>
methods to update the GUI control widgets. Code tidy.</LI>
<LI>Added RayTracerQt in G4VisExecutive. Introduced nickname/alias TSGZB
for appropriate driver by priority.
In Vtk, removed patch as now ToolsSG-GLES builds with OpenGL-3.2.
Vtk and ToolsSG-GLES can now cowork at run time.</LI>
<LI>G4VVisCommand: in <TT>InterpolateViews()</TT>, implemented desired time
per time step. Computation time per step may cause this to increase.</LI>
<LI>G4VisCommandsViewer: improved guidance of <TT>/vis/viewer/interpolate</TT>
command. In <TT>/vis/viewer/set/timeWindow/displayHeadTime</TT>,
implemented "current as default". There might be some minor change of
behaviour.
In <TT>/vis/viewer/select</TT>, removed subsequent refresh, even for
auto-refresh drivers. Refresh is not required after a select, window
systems keep the image. Added <TT>UpdateGUIControlWidgets()</TT> to
<TT>G4VisCommandViewerSelect::SetNewValue()</TT> to update the control
widget when the viewer is changed.</LI>
<LI>In G4VisCommandsTouchable, disabled <TT>/vis/touchable/centre...</TT> and
<TT>/twinkle</TT> in the case of large process times.</LI>
<LI>Added UI command <TT>/vis/scene/add/endOfRunMacro</TT>.
The macro is executed at end of run and when rebuild required.
WARNING: some vis commands in the macro cause recursion. Stick to
simple commmands, e.g., which invoke vis manager <TT>Draw()</TT>
methods.</LI>
<LI>G4VisCommands: always print available drivers when using
<TT>/vis/list</TT>.</LI>
<LI>G4ViewParameters: added <TT>TransparencyByDepth</TT> and
<TT>TransparencyByDepthOption</TT>. Simplified code; use single
TimeParameters from G4ModelingParameters, to replace 18 time window
parameters. Added <TT>zoomToCursor</TT> parameter to control the zoom
behavior of the mouse wheel. Added data members and methods to handle
dots. Changed <TT>GetZoomToCursor()</TT> to <TT>IsZoomToCursor()</TT>
to follow convention for Boolean parameters.
Fixed typo to make <TT>/vis/viewer/set/lightsMove cam</TT> behaving
correctly for <TT>/vis/viewer/set/lightsVector 0 0 1</TT>.
Addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2460">#2460</A>.</LI>
<LI>G4VisCommandsViewerSet: updated to <TT>/vis/viewer/set/timeWindow</TT>
commands according to changes in G4ViewParameters.
Added UI command <TT>/vis/viewer/set/transparencyByDepth</TT>.
Added command <TT>/vis/viewer/set/zoomToCursor</TT> to set
the <TT>zoomToCursor</TT> parameter. Improved guidance for
<TT>vis/viewer/set/dotsSmooth</TT> "Smooth" typically means rounded,
i.e., dots drawn as filled circles. The vis system is configured by
default to draw smooth dots. This may be switched off with
<TT>/vis/viewer/set/dotsSmooth false</TT> and typically this will
result in square dots.
Added <TT>/vis/viewer/set/dotsSize and dotsSmooth</TT> commands.
G4PolyMarkers have a MarkerType that can be dots, circles, or
squares.</LI>
<LI>Minor improvement to listing of histograms (if any).
<LI>G4VisManager: in <TT>EndOfRun()</TT>, print list of histograms even
with vis disabled. In <TT>EndDraw()</TT> and <TT>EndDraw2D()</TT>,
refresh view at end of drawing.
Smooth dots are now default at end-of-run drawing.</LI>
<LI>Modernised macro-based loops with range-based for.</LI>
<LI>Replaced raw for loops with range-for where possible.</LI>
<LI>Removed all references to HepRepFile and Qt3D.</LI>
</UL></LI>
<LI><B>Modeling</B>
<UL>
<LI>G4TrajectoryDrawerUtils: first version of generic time windowing of
trajectory slices; draws only slices within the viewer time window.
Note: unless the viewer can handled time-sliced trajectories (only
OGLS can do this at present), the viewer must request a kernel visit
on change of viewer time window.
Trap trajectories with very long global times, e.g, products of
long-lived radioactive isotopes. Draw as non-time-sliced trajectories.
Added fading of trajectory slices if time windowing is active; makes
trajectory slices look like little meteors streaking across the screen.
Applied clang-format.</LI>
<LI>G4ModelingParameters: implemented <TT>TimeParameters::operator!=()</TT>.
Adjusted default values in TimeParameters: set fade factor to 1
(maximum fading); set head time display 2D x-coordinate to zero
(centre), while 2D y-coordinate remains at -0.9 (bottom).
Added struct <TT>TimeParameters</TT>, a prerequisite for "Generic
Time-Slicing" for the display of the time evolution of events.
With that feature, the display of tracks moving through time will be
available to all vis drivers (drivers will still be allowed to
implement their own time evolution).</LI>
<LI>G4TrajectoriesModel: in <TT>DescribeYourselfTo()</TT>, draw display
head time if requested and if time windowing is active; removed
Begin/EndDraw around the trajectories loop.</LI>
<LI>In G4TrajectoryDrawByEncounteredVolume and
G4TrajectoryEncounteredVolumeFilter, use <TT>G4VTrajectory::GetAttValues()</TT>
instead of <TT>CreateAttValues()</TT>, to speedup repeated visits.</LI>
<LI>G4VModel: introduced static data member for current modeling parameters
and its static accessor, <TT>GetCurrentModelingParameters()</TT>.</LI>
<LI>In G4PhysicalVolumeModel, fixed typo in ModelType.</LI>
<LI>G4TrajectoriesModel: call <TT>SetCurrentModelingParameters()</TT>.</LI>
<LI>G4ModelingParameters: added <TT>TransparencyByDepth</TT> and
<TT>TransparencyByDepthOption</TT>.</LI>
<LI>G4PhysicalVolumeModel: renamed some data members and access functions
for clarity; added <TT>fMaxFullDepth</TT> (includes base path, i.e.,
from world volume); added code for processing transparency by depth.</LI>
</UL></LI>
<LI><B>OpenGL</B>
<UL>
<LI>G4OpenGLQtViewer: fixed the original pick feature to show pick info
window. Implemented new virtual methods of G4VViewer,
<TT>GetWindowSize()</TT> and <TT>GetRenderAreaSize()</TT>; modified
<TT>wheel_rotate()</TT> function to call <TT>ZoomFromMouseWheel()</TT>
of G4VViewer; updated <TT>moveScene()</TT> method to work correctly in
perspective mode with dolly zoom.
Commented calls to TouchableSetVisibility/Colour;
no longer needed since the introduction of the new scene tree.
Commented out some debug printing to <TT>std::cout</TT>.
Improved context menu behavior for picking; added condition to avoid
picking with rigth mouse button.</LI>
<LI>G4OpenGLWin32Viewer: added <TT>SwitchToMasterThread()</TT> method to draw
trajectories at the end of run in MT mode. Implemented new virtual
methods of G4VViewer, <TT>GetWindowSize()</TT> and
<TT>GetRenderAreaSize()</TT>; modified <TT>SetZoom()</TT> function to
call <TT>ZoomFromMouseWheel()</TT> of G4VViewer.</LI>
<LI>G4OpenGLStoredViewer, G4OpenGLStoredQtViewer: initiate kernel visit if
<TT>TransparencyByDepth</TT> or its options change.</LI>
<LI>In G4OpenGLStoredViewer, follow changes introduced in G4ViewParameters.</LI>
<LI>Implemented policy for dotsSize and dotsSmooth.</LI>
</UL></LI>
<LI><B>OpenInventor</B>
<UL>
<LI>G4OpenInventorViewer: initiate kernel visit if <TT>TransparencyByDepth</TT>
or its options change. In <TT>CompareForKernelVisit()</TT>, cause kernel
visit if viewer start/end time changes; this is to take advantage of the
new generic time window. Implemented <TT>CompareForTransientsRedraw()</TT>.
Take advantage of <TT>ProcessTransients()</TT>, which reconstructs that
part of the graphical database for transient objects, e.g., trajectories,
without reconstructing the "permanent" (run-duration) objects, e.g.,
the detector. In other words, something short of a complete "kernel
visit". For example, if the time window changes. Maximises the
efficiency of the recently implemented "generic" time windowing.</LI>
<LI>Implemented policy for dotsSize and dotsSmooth.</LI>
</UL></LI>
<LI><B>RayTracer</B>
<UL>
<LI>Introducing RayTracerQt. Uses multithreading tracer, G4TheMTRayTracer.
With multithreading, image construction is quite fast.</LI>
<LI>Introduced nicknames (long names still work): RT (for RayTracer),
RTX (for RayTracerX), RTQt (for RayTracerQt).</LI>
<LI>In G4RayTracerViewer, use G4Timer to estimate
KernelVisitElapsedTimeSeconds.</LI>
<LI>In G4VRTScanner (and inherited classes), removed misleading and un-used
methods <TT>GetGSName()</TT> and <TT>GetGSNickName()</TT>.</LI>
</UL></LI>
<LI><B>ToolsSG</B>
<UL>
<LI>Upgraded driver to work with OpenGL-3.2 and cowork with Vtk.</LI>
<LI>Allow accumulation of transients (trajectories) during multithreading.</LI>
<LI>Trajectories are stored in the database during the run, and displayed
at end of run. All events are displayed at end of run.</LI>
<LI>In G4ToolsSGViewer, initiate kernel visit if <TT>TransparencyByDepth</TT>
or its options change. In <TT>CompareForKernelVisit()</TT>, cause kernel
visit if viewer start/end time changes; this is to take advantage of the
new generic time window. Implemented <TT>CompareForTransientsRedraw()</TT>.
Removed <TT>SwitchToVisSubThread</TT> and <TT>SwitchToMasterThread</TT>
as no action is needed on thread switching.
In <TT>mouse_move()</TT>, use the <TT>event.shift_modifier()</TT> method,
to pass in pan mode. Have <TT>GetWindowSize()</TT> and
<TT>GetRenderAreaSize()</TT> methods to retrieve the actual sizes of the
"seen/visible window" and of the "render area" size; these may return
different sizes, for example with Qt/OpenGL on macOS and Windows.
In <TT>SetView()</TT>, use the new <TT>GetWindowSize()</TT>,
<TT>GetRenderAreaSize()</TT> methods to set the "marker scale" on
G4ToolsSGSceneHandler.
Modified <TT>wheel_rotate()</TT> function to call
<TT>ZoomFromMouseWheel()</TT> of G4VViewer; added method
<TT>GetSceneNearWidth()</TT>.
In <TT>CreateSG()</TT>, for 3D scenes, have a <TT>tools::sg::shade_model</TT>
node set to "smooth" so TSG_GLES have the same rendering as in OGLI/OGLS.
Issuing Gouraud shading on surfaces by default.</LI>
<LI>G4ToolsSGQtGLESViewer, G4ToolsSGQtZBViewer, G4ToolsSGOffscreenViewer:
suppressed <TT>SetView()</TT> method, as no more needed.</LI>
<LI>In G4ToolsSGSceneHandler, respect line width in vis attributes and view
parameters. In <TT>GetOrCreateNode()</TT>, removed restriction on
multithreading. Handle the <TT>fMarkerScale</TT> field.</LI>
<LI>Implemented policy for dotsSize and dotsSmooth.</LI>
<LI>Modernised macro-based loops with range-based for statements.</LI>
</UL></LI>
<LI><B>Vtk</B>
<UL>
<LI>In <TT>G4VtkSceneHandler::ClearStore()</TT>, fix to clear both stores.</LI>
</UL></LI>
</UL>
<A NAME="data-notes">
<H3><I>Data sets</I></H3></A>
<UL>
<LI>Updated photon evaporation data set version, <B>G4PhotonEvaporation-6.1.2</B>:
<UL>
<LI>Correction to files z94.a239 (addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2682">#2682</A>),
z91.a234 (addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2170">#2170</A>),
z5.a11 (addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2577">#2577</A>)
and z75.a187 (addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2685">#2685</A>).</LI>
</UL></LI>
<LI>Updated low energy electromagnetic data set version, <B>G4EMLOW-8.8</B>:
<UL>
<LI>Updated MicroElec data: added new files and updated format of other
files.</LI>
<LI>Extension of ELSEPA elastic cross-section files for electrons in water
up to <TT>10 MeV</TT>.</LI>
</UL></LI>
<LI>Updated version of data set for neutron energies, <B>G4PARTICLEXS-4.2</B>:
<UL>
<LI>Added data for elements and isotopes for neutrons in the resonance
region, which are using more detailed energy scale and better reproduce
resonance structure.</LI>
</UL></LI>
<LI>Updated data set for proton and neutron density profiles,
<B>G4INCL-1.3</B>:
<UL>
<LI>New data files for in-flight antiprotons (Channel probabilities)
<TT>inflight*FS*.dat</TT>.</LI>
</UL></LI>
<LI>Updated data set for the simulation of channeling trajectories,
<B>G4CHANNELING-2.0</B>:
<UL>
<LI>Updated <TT>Si-axis-100.dat</TT> file after revision of the algorithm
and increasing the accuracy.</LI>
<LI>Added files for: Si, Ge and Diamond.</LI>
</UL></LI>
</UL></LI>
<A NAME="ex-notes">
<H3><I>Examples</I></H3></A>
<UL>
<LI>Updated reference outputs, macros, READMEs and scripts.</LI>
<LI>Migraded READMEs to Markdown format.</LI>
<LI>Fixes for Doxygen documentation and coding guidelines.</LI>
<LI>Updated examples macros for removal of HepRep[File] vis drivers.</LI>
<LI><B><U>advanced</U></B>
<UL>
<LI><B>CaTS</B>
<UL>
<LI>RootIO, EventAction: Moved hit collections from EventAction to
RootIO and improved code readability.</LI>
<LI>In DetectorConstruction, introduced map of sensitive detectors
with names and refactored code for adding detectors.</LI>
<LI>lArTPCSD, readPhotonHits: updated for renaming from Photondetector
to PhotonDetector and revised NumElectrons.</LI>
</UL></LI>
<LI><B>dna/cellularPhantom</B>
<UL>
<LI>Code reorganisation; introduced Run class.</LI>
<LI>Simplified analysis of results.</LI>
<LI>Updated affiliation.</LI>
</UL></LI>
<LI><B>dna/moleculardna</B>:
<UL>
<LI>Updated new implementation of IRT-syn model.</LI>
<LI>Corrected segmentation error with Root macrofiles, caused when low
damage had been produced.</LI>
<LI>Updated reaction list for DNA reactions.</LI>
<LI>Define missing variable in some macros.</LI>
<LI>Increased default statistics in <TT>ecoli.mac</TT>.</LI>
<LI>Fixed cell geometry in <TT>human_cell_chromosomes.mac</TT>.</LI>
<LI>Added moleculardna macro, Root macro and geometry files for the
simulation of phages.</LI>
<LI>Commented out system calls in all Root analysis macros.</LI>
<LI>Updated direct damage range for plasmid.mac and <TT>cylinders.mac</TT>.</LI>
<LI>Added <TT>fiber.mac</TT> macro.</LI>
<LI>Increased max number of arguments in main().</LI>
<LI>Added protection to all analysis macros to avoid <TT>nan</TT> in error
calculation.</LI>
<LI>Added possibility to activate parallel world using dedicated flag from
executable.</LI>
<LI>Added <TT>/scheduler/verbose 0</TT> to all human* macros.</LI>
<LI>Fixed <TT>phase_space_test.mac</TT> macro.</LI>
<LI>Merged the output files from different threads to a single file.</LI>
<LI>Fixed memory leak in the PrimaryGeneratorAction for phase_space.</LI>
<LI>Fixed the wrong gap: a gap (distance between 2 hits) can be 0
Addressing problem report
<A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2681">#2681</A>.</LI>
<LI>Added protection for over counting damage.</LI>
<LI>Fixed the printed info by Batmunkh.</LI>
<LI>Updated analysis macros for statistical analysis of errors.</LI>
<LI>Updated absorbed dose calculation in analysis macros to avoid
double counting of energy deposition in DNA geometry, and inclusion
of error on the dose.</LI>
</UL></LI>
<LI><B>eFLASH_radiotherapy</B>
<UL>
<LI>Added new class FlashMinibeamTemplate implementing the geometry of
collimatiors for minibeam production, including the different
geometrical configurations (grid and planar).
Modified FlashDetectorConstruction accordigly.</LI>
<LI>Added a macro file for minibeam production.</LI>
</UL></LI>
<LI><B>exp_microdosimetry</B>
<UL>
<LI>Added mini tissue equivalent proportional counter (mini TEPC) in
DetectorConstruction.</LI>
<LI>Added a new macro implementing a parallel monoenergetic
<TT>100 MeV</TT> proton beam.</LI>
</UL></LI>
<LI><B>gammaknife</B>
<UL>
<LI>Fixed visualisation of geometry, which can be now drawn with
<TT>/vis/drawVolume</TT>. Corrected positioning of boxmesh.
Based on
<A HREF="https://github.com/Geant4/geant4/pull/92">GitHub PR#92</A>.</LI>
</UL></LI>
<LI><B>IAEAphsp</B>
<UL>
<LI>New example demonstrating how to read and write IAEA phase-space
(IAEAphsp) files within a minimal, configurable application. The
IAEAphsp format is defined by the IAEA Nuclear Data Section; this
example shows how to use IAEAphsp files as input source (i.e. as a
primary generator) and how to produce IAEAphsp outputs at given
scoring planes. Reference paper: M.A. Cortes-Giraldo et al.,
Int J Radiat Biol 88(1-2): 200-208 (2012).</LI>
</UL></LI>
<LI><B>microbeam</B>
<UL>
<LI>Added n-tuple merging.</LI>
</UL></LI>
<LI><B>microelec_SEY</B>
<UL>
<LI>New example simulating the passage of incident electrons [10eV, 10keV]
in a stack of 6 layers, where thicknesses and material nature can be user
defined. The number of electrons re-emitted by the irradiated
surface is counted by a spherical detector surrounding the whole
geometry and providing the SEY rate in a csv file as a function
of the incident energy.</LI>
</UL></LI>
</UL></LI>
<LI><B><U>basic</U></B>
<UL>
<LI><B>B1</B>
<UL>
<LI>RunAction: modified printout to use the expression "Absorbed dose"
Print Edep and mass of scoring volume.</LI>
<LI>Increased statistics in <TT>exampleB1.in</TT>.</LI>
</UL></LI>
<LI><B>B3</B>
<UL>
<LI>Removed StackingAction class and using method
<TT>SetDefaultClassification()</TT> from G4RunManager for
killing neutrinos.</LI>
</UL></LI>
</UL></LI>
<LI><B><U>extended</U></B>
<UL>
<LI><B>biasing</B>
<UL>
<LI><B>GB03</B>
<UL>
<LI>Instantiate G4GenericBiasingPhysics only if biasing is enabled.
Propagate biasing on/off to detector construction to initialise
biasing classes only if biasing is requested.</LI>
<LI>Added histograms and counters for particles penetrating the
shield volume.</LI>
<LI>Replaced GB03DetectorMessenger with GenericMessenger.</LI>
</UL></LI>
<LI><B>GB05</B>
<UL>
<LI>Removed explicit call of base class constructor in DetectorConstruction.</LI>
</UL></LI>
<LI><B>GB07</B>
<UL>
<LI>Removed explicit call of base class constructor in DetectorConstruction.</LI>
</UL></LI>
<LI><B>ReverseMC01</B>
<UL>
<LI>Migrated to work in MT mode.</LI>
</UL></LI>
</UL></LI>
<LI><B>common</B>
<UL>
<LI>New directory providing a set of classes independent on each other
which can be reused in "feature" examples or users applications,
demonstrating just a particular feature.</LI>
</UL></LI>
<LI><B>electromagnetic</B>
<UL>
<LI><B>TestEm0</B>
<UL>
<LI>RunAction: introduced <TT>G4endl</TT> in several places to
easy debugging.</LI>
</UL></LI>
<LI><B>TestEm2</B>
<UL>
<LI>Fixed memory leak at exit in ActionInitialisation, DetectorConstruction
and RunAction. Instantiate the field messenger differently.</LI>
</UL></LI>
<LI><B>TestEm4</B>
<UL>
<LI>Added G4RayleighScattering in PhysicsList.</LI>
</UL></LI>
<LI><B>TestEm5</B>
<UL>
<LI>TrackingAction: fixed reflect condition for negative X beam.</LI>
</UL></LI>
<LI><B>TestEm7</B>
<UL>
<LI>DetectorConstruction: fixed <TT>SetWorldMaterial()</TT> to
correctly act on the world logical volume, rather than the
absorber.</LI>
</UL></LI>
<LI><B>TestEm13</B>
<UL>
<LI>Added G4RayleighScattering in PhysicsList.</LI>
</UL></LI>
<LI><B>TestEm14</B>
<UL>
<LI>Added G4RayleighScattering in PhysicsList.</LI>
</UL></LI>
<LI><B>TestEm15</B>
<UL>
<LI>Updated <TT>gamma.mac</TT> input macro to use emstandard_opt4.</LI>
<LI>Removed <TT>gamma2mumu.mac</TT> input macro.</LI>
</UL></LI>
<LI><B>TestEm18</B>
<UL>
<LI>Added G4RayleighScattering in PhysicsList.</LI>
</UL></LI>
</UL></LI>
<LI><B>eventgenerator</B>
<UL>
<LI><B>exgps</B>
<UL>
<LI>In HistoManager, activated n-tuple merging.</LI>
<LI>Fixed python and analysis macros (tested with python 3.13.3).</LI>
<LI>Moved <TT>plotHisto.C</TT> to macros.
Removed <TT>plottest35.py</TT> and <TT>plotit.csh</TT>.</LI>
<LI>Excluded not working tests (needed further investigation).</LI>
<LI>Removed <TT>exgps_batch.in</TT> (identical with <TT>exgps.in</TT>).</LI>
<LI>Copy all macros and run script into the build area in CMake
script.</LI>
</UL></LI>
<LI><B>pythia/decayer6</B>
<UL>
<LI>Removed <TT>common</TT> subdirectory and copied only classes
used in this example.</LI>
</UL></LI>
<LI><B>pythia/py8decayer</B>
<UL>
<LI>Updated to Pythia-8.3.15.</LI>
</UL></LI>
</UL></LI>
<LI><B>exoticphysics</B>
<UL>
<LI><B>channeling</B>
<UL>
<LI><B>ch2</B>
<UL>
<LI>New macros dedicated to specific applications.</LI>
<LI>Extended output at the detector.</LI>
<LI>Added scoring of radiation spectrum from the Baier-Katkov
method; introduced virtual collimator.</LI>
<LI>Updated python analysis tools, no change in simulation
code. Added a jupyter notebook version of a python script.</LI>
</UL></LI>
<LI><B>ch5</B>
<UL>
<LI>New example for simulating a positron source. Although the
conventional approach based on an **amorphous target** is
possible, the application is primarily designed to simulate
positron sources based on oriented crystals. In the latter
case, both the **single-crystal** and the **hybrid scheme**
can be investigated.</LI>
</UL></LI>
</UL></LI>
<LI><B>phonon</B>
<UL>
<LI>Updated build script for CTests definitions.</LI>
</UL></LI>
</UL></LI>
<LI><B>g3tog4</B>
<UL>
<LI>Removed <TT>common</TT> subdirectory and copied only classes used
in these examples.</LI>
</UL></LI>
<LI><B>hadronic</B>
<UL>
<LI>GammaNuclearPhysics: use G4GammaNuclearXS data set.</LI>
<LI><B>NeutronSource</B>
<UL>
<LI>In <TT>main()</TT>, added <TT>SetUseNRESP71Model(true)</TT>.</LI>
<LI>PhysicsList: removed temporary access to neutron capture model
based on model name; removed unnecesary commented lines.
Use local RadioactiveDecayPhysics instead of
G4RadioaciveDecayPhysics. Use G4EmStandardPhysics_option3
instead of opt4; added G4EmExtraPhysics as an alternative to
GammaNuclearPhysics; use G4HadronElasticPhysicsXS instead of HP.</LI>
</UL></LI>
</UL></LI>
<LI><B>medical/DICOM</B>
<UL>
<LI>Refactored DICOM examples into a single project; now build everything
together for ease of use and demonstration. Code/behaviour otherwise
is unchanged. Including two examples, DICOM1 (renamed from the original
DICOM) and DICOM2, with two libraries that implement capabilities
common to both applications: G4DicomCore, providing the core Geant4
application structure; G4DicomReader, optional utility library to read
DICOM files and RT structure in DICOM format, as well as RT plans.
Both applications can optionally use the DICOM Digital Head. </LI>
</UL></LI>
<LI><B>medical/dna</B>
<UL>
<LI>Use 'default' for trival destructors.</LI>
<LI><B>AuNP</B>:
<UL>
<LI>Added chemistry functionality.</LI>
<LI>Code refactoring and cleanup.</LI>
</UL></LI>
<LI><B>chem4</B>:
<UL>
<LI>Replaced <TT>shared_ptr</TT> with <TT>unique_ptr</TT> and raw
for manager counters.</LI>
</UL></LI>
<LI><B>chem5</B>:
<UL>
<LI>Use the new G4MoleculeCounterManager to manage the
G4MoleculeCounter.</LI>
<LI>Replaced <TT>shared_ptr</TT> with <TT>unique_ptr</TT> and raw
for manager counters.</LI>
<LI>Code clean up; added plot.py script for plotting the output
data.</LI>
</UL></LI>
<LI><B>chem6</B>:
<UL>
<LI>Replaced <TT>shared_ptr</TT> with <TT>unique_ptr</TT> and raw
for manager counters.</LI>
<LI>Added UI commands to select physics constructor and output
file name.</LI>
<LI>Code Refactoring.</LI>
</UL></LI>
<LI><B>dnadamage1</B>:
<UL>
<LI>Replaced <TT>shared_ptr</TT> with <TT>unique_ptr</TT> and raw
for manager counters.</LI>
<LI></LI>
</UL></LI>
<LI><B>dnadamage2</B>:
<UL>
<LI>Access DetectorConstruction via <TT>GetUserDetectorConstruction()</TT>
from G4RunManager.</LI>
<LI>Delete run-manager as last in <TT>main()</TT>.</LI>
</UL></LI>
<LI><B>dnaphysics</B>:
<UL>
<LI>Added possibility to simulate radioactive nuclei;
added <TT>radioactive.in</TT> macro and <TT>plotRadioactive.C</TT>.</LI>
<LI>Added <TT>elastic.in</TT> and <TT>plotElastic.C</TT> macros to show
distribution of scattering angles.</LI>
<LI>Added UI command to record first step only;
updated <TT>elastic.in</TT> macro accordingly.</LI>
<LI>Updated PhysicsList and SteppingAction.</LI>
</UL></LI>
<LI><B>mfp</B>:
<UL>
<LI>Added n-tuple merging.</LI>
</UL></LI>
<LI><B>microtrack</B>:
<UL>
<LI>New example implementing a geometry to calculate microdosimetry
quantities for ion tracks in liquid water at a given energy,
ensuring secondary electron equilibrium when needed. At each
event, a random track hit defines a spherical scoring site;
weighted sampling is then used to estimate energy imparted and
related quantities.</LI>
</UL></LI>
<LI><B>molcounters</B>:
<UL>
<LI>New example showing how to use the new molecule counter manager
system and how to write custom molecule counters. The custom
(spatially-aware) molecule counter used here is further
described in: Radiat. Phys. Chem. 212 (2023) 111194.</LI>
</UL></LI>
<LI><B>neuron</B>:
<UL>
<LI>Added UI commands to calculate water radiolysis products in
specific regions.</LI>
<LI>Commented out the initialization in <TT>main()</TT> to allow
G4DNAPhysicsActivator to register DNA regions in the macro
input file.</LI>
</UL></LI>
<LI><B>phasespace</B>:
<UL>
<LI>New example showing how to simulate particle tracks in a cube
of liquid water containing a scoring sphere, placed in its
centre.</LI>
</UL></LI>
<LI><B>radial</B>:
<UL>
<LI>New example showing how to simulate radial dose profiles in
liquid water from incident ions using the Geant4-DNA physics
processes and models.</LI>
</UL></LI>
<LI><B>range</B>:
<UL>
<LI>Added beta option8 physics list.</LI>
</UL></LI>
<LI><B>scavenger</B>:
<UL>
<LI>Replaced <TT>shared_ptr</TT> with <TT>unique_ptr</TT> and raw
for manager counters.</LI>
</UL></LI>
<LI><B>slowing</B>:
<UL>
<LI>Added n-tuple merging.</LI>
</UL></LI>
<LI><B>spower</B>:
<UL>
<LI>Added scoring of secondary electrons.</LI>
<LI>PhysicsList: added all DNA Physics Lists and usage of
G4EmParameters.</LI>
<LI>In <TT>lot.C</TT>, added selection of electrons by default.</LI>
<LI>In <TT>spower.in</TT>, changed physics constructors.
Added inactivation of nuclearStopping (for ions).</LI>
</UL></LI>
<LI><B>svalue</B>:
<UL>
<LI>Added n-tuple merging.</LI>
<LI>Added missing optional include file in TrackingAction header.</LI>
<LI>Added optional time threshold to iodine macros.</LI>
</UL></LI>
<LI><B>UHDR</B>:
<UL>
<LI>Updated pulseAction for larger pulse size.</LI>
<LI>Temporarily use molecule counter for EventScheduler.</LI>
<LI>Updated reaction table for scavengers.</LI>
<LI>Use the new G4MoleculeCounterManager to manage the
G4MoleculeCounter.</LI>
<LI>Added pulse structure and interpulse feature.</LI>
<LI>Fixed partially diffused-control reactions.</LI>
<LI>Fixed crash due to typo in <TT>UHDR.in</TT>.</LI>
<LI>Removed dependence of PrimaryGeneratorAction/Physlist/ChemList
and ActionIni classes on DetectorConstruction class.</LI>
<LI>Added protection against null pointer in <TT>plotG_time.C</TT>.</LI>
<LI>Updated macro files.</LI>
</UL></LI>
</UL></LI>
<LI><B>medical/radiobiology</B>
<UL>
<LI>Primary beam origin can be located outside the detector water tank.</LI>
</UL></LI>
<LI><B>parallel</B>
<UL>
<LI>Retired obsolete TBB example. Functionality fully provided by
tasking run manager with TBB support with no user code changes
required.</LI>
<LI><B>MPI</B>
<UL>
<LI>Modernised and simplified library and example build scripts
to build G4mpi library and examples of its use in one project.
<LI>Moved MPI from deprecated C++ interface to C interface (MPI 3+).
Based on:
<A HREF="https://github.com/Geant4/geant4/pull/81">GitHub PR#81</A>.</LI>
</UL></LI>
</UL></LI>
<LI><B>parameterisations</B>
<UL>
<LI><B>Par04</B>
<UL>
<LI>Introduction of the CaloDiT pre-trained model, offering greater
accuracy.</LI>
<LI>Updated VAE training with the new translation script and Condor
scripts.</LI>
<LI>Applied GitHub PRs from dependabot to update requirements.</LI>
</UL></LI>
</UL></LI>
<LI><B>radioactivedecay</B>
<UL>
<LI><B>Activation</B>
<UL>
<LI>In <TT>main()</TT>, added <TT>SetUseNRESP71Model(true)</TT>.</LI>
<LI>GammaNuclearPhysics: use G4GammaNuclearXS data set.</LI>
</UL></LI>
</UL></LI>
<LI><B>runAndEvent</B>
<UL>
<LI><B>RE03</B>
<UL>
<LI>Temporarily protect against the use of parallel geometry
initialization if running in sub-event parallel mode.</LI>
</UL></LI>
</UL>
</UL>
<HR>
</BODY>
</HTML>
Reference in New Issue View Git Blame Copy Permalink