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Question radioactive decay, tracking of the produced particles 

Keywords: radioactive decay tracking
Forum: Particles
Date: 18 Sep, 2003
From: <>

Hi, I would like Geant4 to track the alpha and the recoiling neptunium created by Am241 decay. I included the RadioactiveDecay in my physics list and produce the Am241 with /gun/ion. The problem is that I don't see any trace of the decay products in the output (see below). What should I do in order to track the products ?

* G4Track Information:   Particle = Am241[0.0],   Track ID = 1,   Parent ID = 0

Step#    X(mm)    Y(mm)    Z(mm) KinE(MeV)  dE(MeV) StepLeng TrackLeng  NextVolume ProcName
   0    -5.38    0.293     7.05         0        0        0         0 detector           initStep
   1    -5.38    0.293     7.05         0        0        0         0 detector           RadioactiveDecay
>>> Event 0
   1 trajectories stored in this event. 

I would also like to run the simulation for a given time period and look at the decays occurring in that time period. How do I keep track of time ? Thanks, Marie

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