|Message: Re: High energy ion projectiles in cosmic ray simulation||Not Logged In (login)|
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I compiled Geant4 10.00.b01 and launched a run for C12 at 100 GeV/n using FTFP_BERT physics list. It's still running; this is what I get from the process list:
--------------------------------------------------- Hadronic Processes for GenericIon
Process: ionInelastic Model: Binary Light Ion Cascade: 0 eV ---> 4 GeV Model: FTFP: 2 GeV ---> 100 TeV Cr_sctns: Glauber-Gribov nucleus nucleus: 0 eV ---> 2.88022e+295 J Cr_sctns: GheishaInelastic: 0 eV ---> 100 TeV
With my previous test with Geant4 9.5.0 and QGSP_FTFP_BERT I got:
Hadronic Processes for <GenericIon> ----------------------------------- ionInelastic Models: Binary Cascade: Emin(GeV)= 0 Emax(GeV)= 4 FTFP: Emin(GeV)= 2 Emax(GeV)= 100000
ionInelastic Crs sctns: AxenWellischIonH: Emin(GeV)= 0 Emax(GeV)= 100000 TripathiLightIons: Emin(GeV)= 0 Emax(GeV)= 100000 Tripathi: Emin(GeV)= 0 Emax(GeV)= 100000 IonsShen: Emin(GeV)= 0 Emax(GeV)= 100000 GheishaInelastic: Emin(GeV)= 0 Emax(GeV)= 100000
Apart from the different number of cross-section models, it seems to me that the processes and energy ranges are the same for the two cases (assuming that "Binary Cascade" and "Binary Light Ion Cascade" refer to the same thing). So how am I supposed to obtain different results? And how this relates to the "full FTF model for ion/ion" released for version 10 mentioned by V. Ivantchenko? I fear I'm doing something wrong or misunderstanding something...