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Cherenkov photons in Geant4 [message #11771] Wed, 11 May 2011 18:23 Go to next message
Maria Patsyuk is currently offline  Maria Patsyuk
Messages: 58
Registered: April 2010
continuous participant
From: *pools.arcor-ip.net
Hello,

I've installed PANDARoot at home on a 64 bit LINUX machine and I switched CKOV(1) in g3Config.C, but if I run simulations of PANDA Barrel DIRC with Geant4, I don't see any optical photons! (With Geant3 everything is ok)

Can somebody tell me where to switch them on?

I use feb11 external packages if this matters.

Thank you.
Re: Cherenkov photons in Geant4 [message #11772 is a reply to message #11771] Wed, 11 May 2011 20:58 Go to previous message
Mohammad Al-Turany is currently offline  Mohammad Al-Turany
Messages: 518
Registered: April 2004
Location: GSI, Germany
first-grade participant
From: *dip.t-dialin.net
Hi,

To switch on the optical properties with G4 you have to switch it on in the gconfig/g4Config.C

Quote:

TG4RunConfiguration* runConfiguration
= new TG4RunConfiguration("geomRoot", "QGSP_BERT_EMV", "stepLimiter+specialCuts+specialControls");



here you have to add "optical" to the physics lists i.e:

Quote:

TG4RunConfiguration* runConfiguration
= new TG4RunConfiguration("geomRoot", "QGSP_BERT_EMV+optical", "stepLimiter+specialCuts+specialControls");


see the g4Config.C for more options.

regards,

Mohammad


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