[Gate-users] Ion source does not generate any hits

[Pietrzyk, Uwe]

Hi, Jannis Fischer,

maybe you should try with the two following lines and replace
the current ones in your macro by

/gate/physics/addPhysicsList emstandard_opt3
/gate/physics/addProcess RadioactiveDecay

I had no problem in simulating radioactive decay this way.

Hope this helps,

Kind regards,

Uwe Pietrzyk


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On 18 Jan 2017, at 15:43, Jannis Fischer <jannis.fischer at cern.ch> wrote:

> Dear GATE community,
> 
> I'm trying to implement a Sodium-22 source in GATE, but I have a hard time getting it to work. My minimal code for the source is:
> 
> -----
> 
> /gate/source/addSource point_Na22
> /gate/source/point_Na22/setActivity 1000 Bq
> /gate/source/point_Na22/gps/particle ion
> /gate/source/point_Na22/gps/ion 11 22 0 0
> /gate/source/point_Na22/setForcedUnstableFlag true
> /gate/source/point_Na22/useDefaultHalfLife
> /gate/source/list
> 
> -----
> 
> GATE starts without error, however no hits are generated. The source is recognized and listed:
> 
> Source --------------> point_Na22
>  ID                 : 0
>  type               : gps
>  activity (Bq)      : 1000
>  startTime (s)      : 0
>  time (s)           : 0
>  forcedUnstable     : 1
>  forcedHalfLife (s) : 8.2135e+07
>  verboseLevel       : 0
>  relative to vol    : world
> ----------------------
> 
> My physics is set by
> 
> /gate/physics/addPhysicsList QGSP_BERT_EMV
> /gate/physics/addProcess RadioactiveDecay
> 
> The last line does not have any effect. Other sources work fine (like back-to-back gammas or positrons) no matter if the last line about RadioactiveDecay is present of not.
> 
> I tried to look into the list archives, but Gmane is down and I was not able to browse it. However, from the short text in Google I conclude that others have had this problem before. Can you help me, please?
> 
> Thank you and kind regards,
> 
> Jannis
> 
> -- 
> ETH Zürich
> Jannis Fischer, MSc
> PhD Student
> Departement of Physics
> Institute of Particle Physics
> ETH Hönggerberg HPK E31
> Otto-Stern-Weg 5
> CH-8093 Zürich
> 
> Telefon +41 75 411 6786
> Telefax +41 22 76 68242
> jannis.fischer at cern.ch
> jannis.fischer at phys.ethz.ch
> http://safir.ethz.ch
> 
> _______________________________________________
> Gate-users mailing list
> Gate-users at lists.opengatecollaboration.org
> http://lists.opengatecollaboration.org/mailman/listinfo/gate-users

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