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Forum: Processes Involving Optical Photons
Date: 20 Feb, 2007
From: Gumplinger Peter <Gumplinger Peter>

Are you saying that the command:

/gps/particle opticalphoton

is not working for you? You are getting:

***** COMMAND NOT FOUND </gps/particle opticalphoton> *****
***** Command ignored *****

Well, my guess is that

/gps/particle gamma

isn't working for you either. Please, read the GPS Manual:

"The GPS is distributed as part of the Geant4 kernel in the "event" catagory, along side the G4ParticleGun class. G4GeneralParticleSource is used exactly the same way as G4ParticleGun in a Geant4 application. In existing application one can simply change yourPrimaryGeneratorAction by globally replacing "G4ParticleGun" with "G4GeneralParticleSource"."

With other words, the LXe example won't work with GPS commands without changing the code in LXePrimaryGeneratorAction.

Note also, if you use an opticalphoton as primary particle, you should set its transverse polarization.

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1 None: Re: optical photon declaration   (rajani - 21 Feb, 2007)
(_ Feedback: Re: optical photon declaration   (Peter Gumplinger - 21 Feb, 2007)
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