[Gate-users] RE: Gate-users Digest, Vol 8, Issue 12

[li zhi]

Hello, Julia:

I have some problem with Ion source before. It aslo gave no output, which 
is solved now. 

In our case, the problem is because when we installed Geant4, there was a 
little bug in it, If we press "Enter" for default value, it will save 
"G4RADIOACTIVEDATA="/usr/local/geant/geant4.7.1.p02/data/RadiativeDecay" " 

instead 
"G4RADIOACTIVEDATA="/usr/local/geant/geant4.7.1.p02/data/RadiativeDecay3.0" 
" .      

There is missing version Number "3.0" , so the data file is not connect to 
Geant4 and GATE.     After we do  little change with the link, our Ion 
source simulation is working now.


Hope this can help. :)

Regards

Zhi 
VUB, brussels



>Today's Topics:
>
>    1. source definition (j.hartmann at dkfz-heidelberg.de)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Wed, 31 Jan 2007 09:27:48 +0100 (CET)
>From: j.hartmann at dkfz-heidelberg.de
>Subject: [Gate-users] source definition
>To: Gate users <gate-users at lists.healthgrid.org>
>Message-ID: <1170232068.45c05304bcde8 at webmail.inet.dkfz-heidelberg.de>
>Content-Type: text/plain; charset=ISO-8859-1
>
>Hello Gate users,
>I have a problem with my ion source. Until now, I used the 2gamma source 
and
>everything worked fine.
>But when I try to define my source as ion source, it seems that something
>doesn`t work: I can`t see any gammas being emitted from the source during 
the
>simulation and my coincidence file is empty. Could anybody tell me what`s 
wrong
>with the following code:
>
>/gate/source/addSource fluor18
>/gate/source/fluor18/gps/particle ion
>/gate/source/fluor18/gps/ion 9 18 0 0
>/gate/source/fluor18/setActivity 500. becquerel
>/gate/source/fluor18/gps/energytype Mono
>/gate/source/fluor18/gps/monoenergy 0. eV
>/gate/source/fluor18/setForcedUnstableFlag true
>/gate/source/fluor18/setForcedHalfLife 6586 s
>/gate/source/fluor18/gps/angtype iso
>/gate/source/fluor18/gps/mintheta 0. deg
>/gate/source/fluor18/gps/maxtheta 180. deg
>/gate/source/fluor18/gps/minphi 0. deg
>/gate/source/fluor18/gps/maxphi 360. deg
>/gate/source/fluor18/gps/type Point
>/gate/source/fluor18/gps/centre 0. 0. 0. cm
>/gate/source/fluor18/gps/confine NULL
>
>I have also tried to create a simple particle source, but that didn`t work
>either. I could see that gammas were emitted from the source, but the 
program
>crashed after few seconds. This is the code for the positron source:
>
>/gate/source/addSource F18
>/gate/source/F18/setActivity 500. becquerel
>/gate/source/F18/gps/particle e+
>/gate/source/F18/setForcedUnstableFlag true
>/gate/source/F18/setForcedHalfLife 6586 s
>/gate/source/F18/gps/energytype Fluor18
>/gate/source/F18/gps/type Point
>/gate/source/F18/gps/angtype iso
>/gate/source/F18/gps/centre 0. 0. 0. cm
>/gate/source/F18/gps/confine NULL
>
>It would be great if anyone could help me with that!
>Julia
>
>
>------------------------------
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>End of Gate-users Digest, Vol 8, Issue 12
>*****************************************