|Message: Re: Forced Compton interaction with Penelope model||Not Logged In (login)|
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On Thu, 17 Apr 2008, Luciano wrote: > *** Discussion title: Fast Simulation, Transportation & Others > Email replies to PublicHyperNews@slac.stanford.edu must include: > In-Reply-To: <"/fastsim/38/1"@geant4-hn.slac.stanford.edu> > Subject: ...change this to be about your reply. > > Hello > > > My problem is to increase Compton scattering in a silicon detector. > > I followed the instruction in the previous tread on fanoCavity but > > it didn't work for me as I am using PenelopeCompton which doesn't > > setModel method as in G4ComptonScattering. > Right. The G4PenelopeCompton() has not the same interface as > G4ComptonScattering(). > > What exactly do you need to do? Would be enough for you to inactivate all > other gamma processes, so that Compton scattering has not competitors? > > Ciao, > Luciano > Sorry Luciano, It is not so simple. Unfortunatelly, for today we have no forced interactions in both EM packages. There is a possibility of cross section biasing only for few high energy processes with very low cross sections. What can be done for today: create user action whihc use following logic: if no Compton happen in the volume of interest, then a particular gamma is killed (or event is killed). However, this trick should be done accurately. VI
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