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

[Jannis Fischer]

Dear Uwe Pietrzyk, dear all,

with the help of my colleague Chiara and your suggestion it works, thank 
you. The full code for the source now is

----

/gate/source/addSource point_Na22

/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/MySource/gps/type Point

/gate/source/point_Na22/gps/centre {source_x} {source_y} {source_z} cm
/gate/source/point_Na22/setActivity {source_activity} becquerel

----

should somebody need this in the future.

Cheers,

Jannis



Am 18.01.2017 um 17:15 schrieb 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
>
>
> /----------------------------------------------------------------------
> Prof. Dr. Uwe Pietrzyk
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> &
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> <http://www.medizinphysik.uni-wuppertal.de/>
> ----------------------------------------------------------------------/
>
> On 18 Jan 2017, at 15:43, Jannis Fischer <jannis.fischer at cern.ch 
> <mailto: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 <mailto: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
>

-- 
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

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