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Re: Crash in DIRC with G4 [message #13265 is a reply to message #12923]

Wed, 28 March 2012 14:04

Oliver Merle
Messages: 13
Registered: December 2010

occasional visitor

From: *wlan.uni-giessen.de

I've observed the same problem when I started implementing the Disc DIRC geometry earlier this year. To understand how you construct the geometry within PandaRoot, I had to read your code (thanks for the missing documentation, really helpfull) and expected undefined behavior if the first volume (v1 in void FairModule::ConstructRootGeometry()) is not a TGeoAssembly.

The reason is simple: the material of the first volume is ignored. Hard to believe that these geometry files have ever worked in Geant4 - how was it possible without proper material information? Somehow I doubt that they worked ever. With which version of pandaroot and external packages did they actually work? I would like to check that.

I've implemented a fix which works fine for me. Try the attached version FairModule and see if it solves your problem.

Regards,
Oliver

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[Message index]

		Crash in DIRC with G4 By: StefanoSpataro on Wed, 18 January 2012 18:24
		Re: Crash in DIRC with G4 By: StefanoSpataro on Thu, 19 January 2012 11:36
		Re: Crash in DIRC with G4 By: Tobias Stockmanns on Thu, 19 January 2012 11:45
		Re: Crash in DIRC with G4 By: Ivana Hrivnacova on Tue, 13 March 2012 10:54
		Re: Crash in DIRC with G4 By: StefanoSpataro on Tue, 13 March 2012 15:31
		Re: Crash in DIRC with G4 By: Ivana Hrivnacova on Tue, 13 March 2012 16:17
		Re: Crash in DIRC with G4 By: Maria Patsyuk on Wed, 14 March 2012 02:41
		Re: Crash in DIRC with G4 By: Ivana Hrivnacova on Wed, 14 March 2012 12:34
		Re: Crash in DIRC with G4 By: StefanoSpataro on Wed, 14 March 2012 18:10
		Re: Crash in DIRC with G4 By: Ivana Hrivnacova on Thu, 15 March 2012 14:00
		Re: Crash in DIRC with G4 By: StefanoSpataro on Thu, 15 March 2012 14:52
		Re: Crash in DIRC with G4 By: asanchez on Thu, 15 March 2012 15:16
		Re: Crash in DIRC with G4 By: Oliver Merle on Wed, 28 March 2012 14:04
		Re: Crash in DIRC with G4 By: Mohammad Al-Turany on Wed, 28 March 2012 16:40
		Re: Crash in DIRC with G4 By: Oliver Merle on Wed, 28 March 2012 18:39
		Re: Crash in DIRC with G4 By: Mohammad Al-Turany on Wed, 28 March 2012 20:46

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