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Forum: Hadronic Processes
Re: None photonuclear reaction+isotope production cross section (Eleni)
Re: None Re: photonuclear reaction+isotope production cross section (Daren Sawkey)
Re: None Re: photonuclear reaction+isotope production cross section (Eleni)
Re: None Re: photonuclear reaction+isotope production cross section (Daren Sawkey)
Date: 22 Oct, 2015
From: Eleni <Eleni>

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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1 None: Re: photonuclear reaction+isotope production cross section   (Daren Sawkey - 22 Oct, 2015)
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