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None Problem with Decay Beta Sr-90 source 

Forum: Hadronic Processes
Date: 05 Jun, 2016
From: andrea lucaroni <andrea lucaroni>

Hi all

I'm using geant4.9.3.p02, i try use this code for beta source:

/gps/verbose 2
/gps/particle ion
/gps/ion 38 90 0 0
/gps/ene/mono 0.0 keV
/gps/pos/centre 0. 0. 0. mm
/gps/pos/rot1 0 1 -1
/gps/pos/type Plane
/gps/pos/shape Circle
/gps/pos/radius 2.5 mm

/gps/ang/type iso
/gps/ang/mintheta   0.0 deg
/gps/ang/maxtheta  90.0 deg


My code in physicList is this:

// Deacy physics and all particles
  decPhysicsList = new G4DecayPhysics();

Now i see the process name in the output but no numbers (same for all
events):

=====================================

  G4EventManager::ProcessOneEvent()

=====================================

1 primaries are passed from G4EventTransformer.

!!!!!!! Now start processing an event !!!!!!!


*********************************************************************************************************

* G4Track Information:   Particle = Sr90[0.0],   Track ID = 1,   Parent ID
= 0

*********************************************************************************************************


Step#    X(mm)    Y(mm)    Z(mm) KinE(MeV)  dE(MeV) StepLeng TrackLeng
 NextVolume ProcName

    0        0       -1     1.44         0        0        0         0
physicalworld initStep

    1        0       -1     1.44         0        0        0         0
physicalworld User Limit

It looks like Sr90 is being tracked instead of the decay products and
because it's at rest (source). I must add code in my PhysicList, also
i check the path G4RADIOACTIVEDATA is correct. May I must add code in
my PhysicList.

Could someone please help me to figure out a way to solve this.

Thanks a lot in advance,
  Best regards,
 Andrea

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1 None: Re: Problem with Decay Beta Sr-90 source   (Dennis H. Wright - 14 Jun, 2016)
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