Gabriele Cosmo
192 lines
8.8 KiB
Plaintext
192 lines
8.8 KiB
Plaintext
-------------------------------------------------------------------
|
|
|
|
==========================================================
|
|
Geant4 - an Object-Oriented Toolkit for Physics Simulation
|
|
==========================================================
|
|
|
|
History file for hadronic/models/de_excitation
|
|
----------------------------------------------
|
|
|
|
This file should be used to summarize modifications introduced in the
|
|
code and to keep track of all tags.
|
|
|
|
---------------------------------------------------------------
|
|
* Please list in reverse chronological order (last date on top)
|
|
---------------------------------------------------------------
|
|
|
|
09-December 2008 A.Howard hadr-pre-V09-01-15
|
|
---------------------------------------------------
|
|
Added protection for close to zero excitation energy in
|
|
G4PreCompoundModel.cc (according to JMQ, MAC) to not try to de-excite.
|
|
|
|
09-December 2008 A.Howard hadr-pre-V09-01-14
|
|
---------------------------------------------------
|
|
Added protection for close to zero excitation energy in
|
|
G4PreCompoundTransitions.cc (returns 0.0), prevents FPE later on.
|
|
|
|
27-November 2008 A.Howard hadr-pre-V09-01-13
|
|
---------------------------------------------------
|
|
Added data member initialisation to G4VPreCompoundTransitions.hh
|
|
|
|
19-November 2008 A.Howard hadr-pre-V09-01-12
|
|
---------------------------------------------------
|
|
JMQ fix to G4PreCompoundNeutron.cc for Zirconium (if (nu < 0.)nu=-nu).
|
|
|
|
30-September 2008 A.Howard hadr-pre-V09-01-11
|
|
---------------------------------------------------
|
|
Trivial protection against negative probabilities for incident protons on
|
|
targets with A < Carbon.
|
|
|
|
22-September 2008 A.Howard hadr-pre-V09-01-10
|
|
---------------------------------------------------
|
|
JMQ's latest developments - which are an extension of hadr-pre-V09-01-08 with
|
|
cross-section options (equivalent to the de-excitation modifications) and other
|
|
options (SICB, Never Go Back,...). In addition Gunter's fix to the factorials
|
|
is included from hadr-pre-V09-01-09.
|
|
Added new files: G4PreCompoundAlpha.cc G4PreCompoundDeuteron.cc
|
|
G4PreCompoundHe3.cc G4PreCompoundNeutron.cc G4PreCompoundProton.cc
|
|
G4PreCompoundTriton.cc (Classes previously existed. Now they have more
|
|
involved cross-section calculations).
|
|
|
|
19-September 2008 A.Howard hadr-pre-V09-01-09
|
|
---------------------------------------------------
|
|
Including Gunter's fix (see 11-August below) on top of ref-07
|
|
(hadr-pre-V09-00-04), i.e. without JMQ's developments.
|
|
|
|
11-August 2008 G.Folger
|
|
-----------------------------------------------
|
|
Rewrite algorithm in G4PreCompoundEmission::rho() to avoid frequent
|
|
floating point overflow when using Precompund in combination
|
|
with Binary Cascade.
|
|
|
|
|
|
24 July 2008 J. M. Quesada hadr-pre-V09-01-08
|
|
---------------------------------------------------
|
|
Minor fixes and Coulomb barrier just for Wellisch's proton cross section
|
|
(OPT=2)
|
|
|
|
|
|
23 July 2008 V.Ivanchenko hadr-pre-V09-01-07
|
|
---------------------------------------------------
|
|
Fixed mistake in tagging
|
|
|
|
23 July 2008 V.Ivanchenko hadr-pre-V09-01-06
|
|
---------------------------------------------------
|
|
Return back Coulomb barrier initialisation (J.M.Quesada)
|
|
|
|
27 June 2008 V.Ivanchenko hadr-pre-V09-01-05
|
|
---------------------------------------------------
|
|
Fixed G4PreCompoundNucleon and G4PreCompoundIon for
|
|
Coulomb barrier, added protections for zero cross sections,
|
|
OPT=2 is used (J.M.Quesada)
|
|
|
|
05 June 2008 J. M. Quesada hadr-pre-V09-01-04
|
|
---------------------------------------------------
|
|
Bug fixed in OPT=1 (Chatterjee) charged particle cross sections.
|
|
Unphysical values at very low emission energies have been corrected (set
|
|
to 0); OPT=1 ( OPT=2 in previous tag)
|
|
|
|
|
|
15-May 2008 J. M.Quesada hadr-pre-V09-01-03
|
|
-----------------------------------------------
|
|
The retrieval of transition probabilities in G4PreCompoundModel.cc
|
|
(for protection against unphysically crossing the landa_+=landa_- condition)
|
|
was misplaced. Now it has been placed inside the preequilibrium transitions
|
|
loop.
|
|
|
|
8-May 2008 J. M.Quesada hadr-pre-V09-01-02
|
|
-----------------------------------------------
|
|
Protection against non physical situation has been set: Equilibrium exciton number
|
|
Neq (when reached, equilibrium regime starts) should correspond to equal transition
|
|
probabilities "back" and "forth". Nevertheless, for heavy target (Neq is big even
|
|
for low incident energies) after first emission this condition (equal trans. prob.)
|
|
is reached far before reaching corresponding Neq of the residual. Unless this "jump"
|
|
to equilibrium is forced in this case, preequilibrium will be
|
|
spuriously prolonged (as a side effect, with huge CPU consumption).
|
|
G4PreCompoundModel and G4PreCompoundTransitions classes have been modified.
|
|
|
|
|
|
1-May 2008 J. M.Quesada hadr-pre-V09-01-01
|
|
-----------------------------------------------
|
|
- First trial with cvs. 00 skipped by mistake.
|
|
New inverse cross sections:
|
|
OPT=1 Chetterjee's parameterization to reaction cross sections from optical potential global fittings.
|
|
OPT=2 as OPT=1 but for protons the Wellisch's parameterization for protons is used (DEFAULT)
|
|
OPT=3 Kalbach's modifications of Chatterjee's parameterization of cross sections
|
|
OPT=4 as OPT=3 but for protons the Wellisch's parameterization for protons is used
|
|
|
|
Coulomb barrier has been suppressed as it enters through inverse cross sections. Also methods related to former Dostrovski's cross sections (alpha , beta and C parameters) have been suppressed. In all particle header files:
|
|
G4PreCompoundNucleon.hh ,G4PreCompoundNeutron.hh,G4PreCompoundProton.hh, G4PreCompoundIon.hh, G4PreCompoundDeuteron.hh, G4PreCompoundTriton.hh ,G4PreCompoundHe3.hh , G4PreCompoundAlpha.hh
|
|
|
|
|
|
Soft cutoff transition from equilibrium to equilibrium has been suppressed (unphysical and not necessary anymore).In G4PreCompoundModel.
|
|
|
|
New transition probabilities :
|
|
OPT=1 Gudima's formulae
|
|
OPT=2 Machner parameterization of matrix elements for transitions (DEFAULT)
|
|
|
|
Level density is set to A/10 (Gudima's prescription).
|
|
|
|
Several bugs fixed (average xs in nucleon-nucleon xs in G4PreCompundTransitions.cc and emission probability formula in G4PreCompoundIon.cc ) .
|
|
|
|
25-October 2007 A.Howard hadr-pre-V09-00-04
|
|
-----------------------------------------------
|
|
- Removed compilation warning on unused parameter in G4PreCompoundIon.cc
|
|
|
|
|
|
11-October 2007 A.Howard hadr-pre-V09-00-03
|
|
-----------------------------------------------
|
|
- Corrected for integer arithmetic bug in G4PreCompoundModel.cc
|
|
(ratio of charged to neutral excitons)
|
|
|
|
|
|
01-October 2007 A.Howard hadr-pre-V09-00-02
|
|
-----------------------------------------------
|
|
- Protected Rj (Q_beta) factor against divide by zeroes (should never happen?)
|
|
The following files have been modified:
|
|
G4PreCompoundAlpha.hh, G4PreCompoundDeuteron.hh, G4PreCompoundHe3.hh,
|
|
G4PreCompoundTriton.hh, G4PreCompoundNeutron.hh, G4PreCompoundProton.hh
|
|
|
|
|
|
23-August 2007 A.Howard hadr-pre-V09-00-01
|
|
----------------------------------------------
|
|
- Development tag incorporating further suggestions/corrections from
|
|
Jose-Manuel Quesada particularly with respect to light ion production.
|
|
The following files have been modified:
|
|
G4PreCompoundIon.cc, G4PreCompoundDeuteron.hh, G4PreCompoundHe3.hh,
|
|
G4PreCompoundTriton.hh, G4PreCompoundAlpha.hh, G4PreCompoundIon.hh,
|
|
G4VPreCompoundIon.hh (unused?)
|
|
|
|
|
|
23-July 2007 A.Howard hadr-pre-V09-00-00
|
|
----------------------------------------------
|
|
- Development tag incorporating the suggestions/corrections of Jose-Manuel
|
|
Quesada. These should reflect the literature and units expected for the
|
|
exciton model. The following files have been modified:
|
|
G4PreCompoundNucleon.hh, G4VPreCompoundNucleon.hh, G4PreCompoundAlpha.hh,
|
|
G4PreCompoundHe3.hh, G4PreCompoundDeuteron.hh, G4PreCompoundNeutron.hh,
|
|
G4PreCompoundProton.hh, G4PreCompoundTriton.hh
|
|
G4VPreCompoundIon.cc, G4PreCompoundIon.cc, G4PreCompoundModel.cc,
|
|
G4VPreCompoundFragment.cc, G4PreCompoundTransitions.cc,
|
|
G4PreCompoundNucleon.cc, G4VPreCompoundNucleon.cc
|
|
The main changes are:
|
|
- introducing an Rj factor into the probability calculation,
|
|
- correcting the units for the Pauli Blocking Factor - missing a g factor,
|
|
- decreasing the number of charged particles if the number excitons is
|
|
decreased (previously this number was only increased with increasing
|
|
excitons).
|
|
|
|
|
|
04-May 2007 G.Folger hadr-pre-V08-02-00
|
|
----------------------------------------------
|
|
- G4PreCompoundTransitions.cc: Protect against divide by 0
|
|
|
|
19 Aug 2006 Dennis Wright (hadr-pre-V08-01-00)
|
|
----------------------------------------------
|
|
- exciton_model
|
|
G4VPreCompoundFragment.hh, .icc : remove meaningless const from
|
|
methods GetA, GetZ, GetRestA, GetRestZ, GetCoulombBarrier, GetBindingEnergy,
|
|
GetMaximalKineticEnergy, GetEnergyThreshold, GetEmissionProbability,
|
|
GetNuclearMass, GetRestNuclearMass and GetReducedMass
|
|
|