############################################ !!! WARNING - FPE detection is activated !!! ############################################ ################################ !!! G4Backtrace is activated !!! ################################ ************************************************************** Geant4 version Name: geant4-11-04-patch-01 (13-March-2026) Copyright : Geant4 Collaboration References : NIM A 506 (2003), 250-303 : IEEE-TNS 53 (2006), 270-278 : NIM A 835 (2016), 186-225 WWW : http://geant4.org/ ************************************************************** ### New material Water ======================================================================= ====== Electromagnetic Physics Parameters ======== ======================================================================= LPM effect enabled 1 Enable creation and use of sampling tables 0 Apply cuts on all EM processes 0 Use combined TransportationWithMsc Disabled Use general process 0 Enable linear polarisation for gamma 0 Enable photoeffect sampling below K-shell 1 Enable sampling of quantum entanglement 0 X-section factor for integral approach 0.8 Min kinetic energy for tables 10 eV Max kinetic energy for tables 10 TeV Number of bins per decade of a table 10 Verbose level 0 Verbose level for worker thread 0 Bremsstrahlung energy threshold above which primary e+- is added to the list of secondary 100 TeV Bremsstrahlung energy threshold above which primary muon/hadron is added to the list of secondary 100 TeV Positron annihilation at rest model SimplePositronium Enable 3 gamma annihilation on fly 0 Lowest triplet kinetic energy 1 MeV Enable sampling of gamma linear polarisation 0 5D gamma conversion model type 0 5D gamma conversion model on isolated ion 0 Use RiGe 5D e+e- pair production model by muons 0 Livermore data directory epics_2017 ======================================================================= ====== Ionisation Parameters ======== ======================================================================= Step function for e+- (0.2, 1 mm) Step function for muons/hadrons (0.2, 0.1 mm) Step function for light ions (0.2, 0.1 mm) Step function for general ions (0.2, 0.1 mm) Lowest e+e- kinetic energy 1 keV Lowest muon/hadron kinetic energy 1 keV Use ICRU90 data 0 Fluctuations of dE/dx are enabled 1 Type of fluctuation model for leptons and hadrons Universal Use built-in Birks saturation 0 Build CSDA range enabled 1 Use cut as a final range enabled 0 Enable angular generator interface 0 Max kinetic energy for CSDA tables 10 TeV Max kinetic energy for NIEL computation 0 eV Linear loss limit 0.01 Read data from file for e+e- pair production by mu 0 ======================================================================= ====== Multiple Scattering Parameters ======== ======================================================================= Type of msc step limit algorithm for e+- 1 Type of msc step limit algorithm for muons/hadrons 0 Msc lateral displacement for e+- enabled 1 Msc lateral displacement for muons and hadrons 0 Urban msc model lateral displacement alg96 1 Range factor for msc step limit for e+- 0.04 Range factor for msc step limit for muons/hadrons 0.2 Geometry factor for msc step limitation of e+- 2.5 Safety factor for msc step limit for e+- 0.6 Skin parameter for msc step limitation of e+- 1 Lambda limit for msc step limit for e+- 1 mm Use Mott correction for e- scattering 0 Factor used for dynamic computation of angular limit between single and multiple scattering 1 Fixed angular limit between single and multiple scattering 3.1416 rad Upper energy limit for e+- multiple scattering 100 MeV Type of electron single scattering model 0 Type of nuclear form-factor 1 Screening factor 1 ======================================================================= /run/verbose 1 # /testem/det/setMat Water /testem/det/setSize 1 cm /run/geometryModified # /testem/phys/addPhysics standard # /run/setCut 1 mm # /process/em/verbose 0 /process/em/printParameters ======================================================================= ====== Electromagnetic Physics Parameters ======== ======================================================================= LPM effect enabled 1 Enable creation and use of sampling tables 0 Apply cuts on all EM processes 0 Use combined TransportationWithMsc Disabled Use general process 0 Enable linear polarisation for gamma 0 Enable photoeffect sampling below K-shell 1 Enable sampling of quantum entanglement 0 X-section factor for integral approach 0.8 Min kinetic energy for tables 10 eV Max kinetic energy for tables 10 TeV Number of bins per decade of a table 10 Verbose level 0 Verbose level for worker thread 0 Bremsstrahlung energy threshold above which primary e+- is added to the list of secondary 100 TeV Bremsstrahlung energy threshold above which primary muon/hadron is added to the list of secondary 100 TeV Positron annihilation at rest model SimplePositronium Enable 3 gamma annihilation on fly 0 Lowest triplet kinetic energy 1 MeV Enable sampling of gamma linear polarisation 0 5D gamma conversion model type 0 5D gamma conversion model on isolated ion 0 Use RiGe 5D e+e- pair production model by muons 0 Livermore data directory epics_2017 ======================================================================= ====== Ionisation Parameters ======== ======================================================================= Step function for e+- (0.2, 1 mm) Step function for muons/hadrons (0.2, 0.1 mm) Step function for light ions (0.2, 0.1 mm) Step function for general ions (0.2, 0.1 mm) Lowest e+e- kinetic energy 1 keV Lowest muon/hadron kinetic energy 1 keV Use ICRU90 data 0 Fluctuations of dE/dx are enabled 1 Type of fluctuation model for leptons and hadrons Universal Use built-in Birks saturation 0 Build CSDA range enabled 1 Use cut as a final range enabled 0 Enable angular generator interface 0 Max kinetic energy for CSDA tables 10 TeV Max kinetic energy for NIEL computation 0 eV Linear loss limit 0.01 Read data from file for e+e- pair production by mu 0 ======================================================================= ====== Multiple Scattering Parameters ======== ======================================================================= Type of msc step limit algorithm for e+- 1 Type of msc step limit algorithm for muons/hadrons 0 Msc lateral displacement for e+- enabled 1 Msc lateral displacement for muons and hadrons 0 Urban msc model lateral displacement alg96 1 Range factor for msc step limit for e+- 0.04 Range factor for msc step limit for muons/hadrons 0.2 Geometry factor for msc step limitation of e+- 2.5 Safety factor for msc step limit for e+- 0.6 Skin parameter for msc step limitation of e+- 1 Lambda limit for msc step limit for e+- 1 mm Use Mott correction for e- scattering 0 Factor used for dynamic computation of angular limit between single and multiple scattering 1 Fixed angular limit between single and multiple scattering 3.1416 rad Upper energy limit for e+- multiple scattering 100 MeV Type of electron single scattering model 0 Type of nuclear form-factor 1 Screening factor 1 ======================================================================= # /run/initialize The Box is 1 cm of Water Material: Water density: 1.000 g/cm3 RadL: 36.092 cm Nucl.Int.Length: 75.356 cm Imean: 78.000 eV temperature: 293.15 K pressure: 1.00 atm ---> Element: Hydrogen (H) Z = 1.0 N = 1 A = 1.010 g/mole ---> Isotope: H1 Z = 1 N = 1 A = 1.01 g/mole abundance: 99.989 % ---> Isotope: H2 Z = 1 N = 2 A = 2.01 g/mole abundance: 0.011 % ElmMassFraction: 11.21 % ElmAbundance 66.67 % ---> Element: Oxygen (O) Z = 8.0 N = 16 A = 16.000 g/mole ---> Isotope: O16 Z = 8 N = 16 A = 15.99 g/mole abundance: 99.757 % ---> Isotope: O17 Z = 8 N = 17 A = 17.00 g/mole abundance: 0.038 % ---> Isotope: O18 Z = 8 N = 18 A = 18.00 g/mole abundance: 0.205 % ElmMassFraction: 88.79 % ElmAbundance 33.33 % # /gun/particle e- /gun/energy 100 MeV # /run/beamOn 100000 ========= Table of registered couples ============================ Index : 0 used in the geometry : Yes Material : Water Range cuts : gamma 1 mm e- 1 mm e+ 1 mm proton 1 mm Energy thresholds : gamma 2.93515 keV e- 351.291 keV e+ 341.598 keV proton 100 keV Region(s) which use this couple : DefaultRegionForTheWorld ================================================================== ### Run 0 starts. --------- Ranecu engine status --------- Initial seed (index) = 0 Current couple of seeds = 9876, 54321 ---------------------------------------- Run terminated. Run Summary Number of events processed : 100000 User=0.290000s Real=0.293770s Sys=0.000000s ======================== run summary ====================== The run was 100000 e- of 100 MeV through 1 cm of Water (density: 1 g/cm3 ) Process defining step : Edep alone= 40 Transportation= 99997 eBrem= 37461 eIoni= 23988 TrackLength = 1 cm nb of steps = 1.615 stepSize = 6.193 mm (86.42 nm --> 1.008 cm ) Energy continuously deposited along primary track (restricted dE/dx) dE1 = 1.744 MeV (1.329 MeV --> 3.138 MeV) Evaluation of dE1 from reading restricted Range table : dE1_table = 1.744 MeV ---> dE1/dE1_table = 1 Energy transfered to secondary particles : due to eBrem: dE2 = 2.324 MeV (2.938 keV --> 98.4 MeV) due to eIoni: dE2 = 446 keV (351.3 keV --> 51.82 MeV) Total energy transfered to secondaries : dE3 = sum of dE2 = 2.77 MeV (2.938 keV --> 98.4 MeV) Total energy lost by incident particle : dE4 = dE1 + dE3 = 4.514 MeV (1.329 MeV --> 100 MeV) calcul of dE4 from energy balance : dE4_bal = E_in - E_out = 4.514 MeV (1.329 MeV --> 100 MeV) Evaluation of dE4 from reading full Range table : dE4_table = 4.578 MeV ---> dE4/dE4_table = 0.9861 Energy spectrum of secondary particles : e-: 23988 Emean = 1.859 MeV (351.3 keV --> 49.39 MeV) gamma: 37449 Emean = 6.206 MeV (2.938 keV --> 98.4 MeV) --------- Ranecu engine status --------- Initial seed (index) = 0 Current couple of seeds = 487149134, 312236109 ---------------------------------------- ================== Deleting memory pools =================== Number of memory pools allocated: 9 of which, static: 0 Dynamic pools deleted: 9 / Total memory freed: 0.017 MB ============================================================