[Gate-users] Multiple coincidences rejection

[Mathieu DUPONT]

You are right Émilie but don't read the doc too carefully because the documentation is wrong. 

You have to use /gate/digitizer/Coincidences/MultiplePolicy (as you said) instead of /gate/digitizer/Coincidences/setMultiplePolicy


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----- Mail original -----
De: "Emilie Gaudin" <Emilie.Odette.Gaudin at USherbrooke.ca>
À: "Sowmiya Raj Thirumalai" <sthirum6 at asu.edu>, gate-users at lists.opengatecollaboration.org
Envoyé: Mercredi 4 Mars 2020 19:33:04
Objet: Re: [Gate-users] Multiple coincidences rejection

I don't know which version of GATE you are running. 
Moreover, you didn't share you code neither your error. 
Please read the documentation carefully... Here is the link just in case: 
[ https://opengate.readthedocs.io/en/latest/digitizer_and_detector_modeling.html#coincidence-sorter | https://opengate.readthedocs.io/en/latest/digitizer_and_detector_modeling.html#coincidence-sorter ] 

In your digitizer: 
/gate/digitizer/Coincidences/enable 
/gate/digitizer/Coincidences/MultiplesPolicy killAll 

For the noise: 
/gate/distributions/name energy_distrib 
/gate/distributions/insert Gaussian 
/gate/distributions/energy_distrib/setMean 450 keV 
/gate/distributions/energy_distrib/setSigma 30 keV 
/gate/distributions/name dt_distrib 
/gate/distributions/insert Exponential 
/gate/distributions/dt_distrib/setLambda 7.57 mus 
/gate/digitizer/Singles/insert noise 
/gate/digitizer/Singles/noise/setDeltaTDistribution dt_distrib 
/gate/digitizer/Singles/noise/setEnergyDistribution energy_distrib 

Émilie 



De : Gate-users <gate-users-bounces at lists.opengatecollaboration.org> de la part de Sowmiya Raj Thirumalai <sthirum6 at asu.edu> 
Envoyé : 4 mars 2020 13:21 
À : gate-users at lists.opengatecollaboration.org <gate-users at lists.opengatecollaboration.org> 
Objet : [Gate-users] Multiple coincidences rejection 
Hi All, 

I want to reject all the multiple coincidences in my simulation. When I used the command in the users guide, there was error shown “Command not found”. Could anyone please tell me what’s the correct command? 

Also, how to find the background count rate for the noise module example in GATE? 

Thanks & Regards 
Sowmiya 

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