|Message: Re: photonuclear reaction+isotope production cross section||Not Logged In (login)|
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Yes, you are right and actually in the beginning I was testing the simulation for a 'thin' layer of 1 mm. Could the specific example be used for thin layers?
For example in the G4 version I use (Geant4-10.1.0) the result is the following.
Is it easy for you to show me your result based on your corrections?
Thank you very much for your help.
The run is 1000000 gamma of 13.5 MeV through 1 mm of Gold197 (density: 19.3 g/cm3 )
Process calls frequency: Transportation= 993272 photonNuclear= 6728
Nb of incident particles surviving after 1 mm of Gold197 : 993272 ================================================================================
MeanFreePath: 496.72 um +- 288.57 um massic: 958.67 mg/cm2 CrossSection: 20.132 cm^-1 massic: 1.0431 cm2/g
Verification: crossSections from G4HadronicProcessStore: proc Transportation CrossSectionPerVolume: 0 CrossSectionPerAtom: 0
Transportation= 0 um2/mg 0 pbarn proc photonNuclear CrossSectionPerVolume: 0.0033388 CrossSectionPerAtom: 5.6582e-23
photonNuclear= 173 um2/mg 565.82 mbarn total= 173 um2/mg 565.82 mbarn
List of nuclear reactions:
gamma + Au197 --> N gamma + Au197: 4405 Q = -37.056 keV gamma + Au197 --> N gamma + neutron + Au196: 2322 Q = -8.1088 MeV gamma + Au197 --> neutron + Au196: 1 Q = -8.0725 MeV
List of generated particles: Au196: 2323 Emean = 5.2413 keV ( 11.711 eV --> 33.305 keV) Au197: 4405 Emean = 1.0307 keV ( 61.435 eV --> 1.9465 keV) gamma: 23759 Emean = 2.933 MeV ( 33.669 keV --> 12.499 MeV) neutron: 2323 Emean = 915.49 keV ( 517.32 eV --> 5.3942 MeV)
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