Dear All, As far as I understood, since the version 7.0 He3 is considered as a generic ion. Therefore one can expect that hadronic models for He3 beams (e.g. G4BinaryLightIonReaction) are active as soon as they are active for GenericIon. However, I have no hadronic interactions of He3 in my G4 application, only EM ones. For the sake of simplicity one can also use TestEm7 with a little "hacking" to reproduce the problem: In ionC12.mac one can replace /gun/ion 6 12 6 /gun/energy 3.5 GeV by /gun/ion 2 3 2 /gun/energy 1.0 GeV then with /process/verbose 5 /process/list Hadronic /process/setVerbose 5 IonInelastic /process/dump IonInelastic /process/dump Hadronic or by setting the following environment variables: export BCDEBUG=1 export BLICDEBUG=1 one can find out that no hadronic interactions produced with He3. This is aparently the only exception, as hadronics works with deutron, alpha and Li-7, for example.
I checked out and built TestEm7 and made the changes you suggested to ionC12.mac. When I ran it the Binary Light Ion Cascade was called (many times) for 3He. So it appears that 3He does undergo hadronic interactions, at least in Geant4 8.2, which is the version I used.
Yes, it does work now with the version 8.2, it did not work with 8.1. The problem is fixed now. Thanks a lot! Regards, Igor
