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Forum: Documentation and Examples
Re: Question rdecay01 example Co60.mac (Alexis Brosssard)
Date: 16 Oct, 2015
From: michel maire <michel maire>

On Fri, 16 Oct 2015 14:54:19 GMT, Alexis Brosssard wrote:
> Hello,
> 
> I am trying to simulate background from Co60. To do that I use the
> example rdecay01 with macro Co60.mac. After the decay, I obtain
> Ni[2505.766] that is correct. But after the de-excitation always happen
> by emission of 2.5 MeV gamma photon.
> 
> G4WT0 > *********************************************************************************************************
> G4WT0 > * G4Track Information:   Particle = Ni60[2505.766],   Track ID = 2,   Parent ID = 1
> G4WT0 > *********************************************************************************************************
> G4WT0 > 
> G4WT0 > Step#      X         Y         Z        KineE    dEStep   StepLeng  TrakLeng    Volume     Process
> G4WT0 >     0      0 fm      0 fm      0 fm  0.597 eV      0 eV      0 fm      0 fm      World   initStep
> G4WT0 >     1      0 fm      0 fm      0 fm  0.597 eV  0.597 eV      0 fm      0 fm      World   RadioactiveDecay
> G4WT0 > 
>     :----- List of secondaries ----------------
> G4WT0 >             Ni60:  energy =0.5974 eV   time =1.131e+08 s  
> G4WT0 >            gamma:  energy = 2.506 MeV  time =1.131e+08 s  
> G4WT0 >     :------------------------------------------
> 
> I have simulated 100 decays and obtained 100 de-excitation with one 2.5
> MeV gamma. Do you I have to modify something to obtain de-excitation by
> emission of two gamma at 1,1732 and 1,3325 MeV.
> 
> With best regards,
> 
> Alexis
> 

  This is a bug introduced in 10.1 and not yet corrected in patch 2.
  The solution is to go back to 10.0 or,even better 9.6. Or to move to 10.2 beta

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1 None: Re: rdecay01 example Co60.mac   (Alexis Brosssard - 16 Oct, 2015)
1 None: Bi210   (michel maire - 17 Oct, 2015)
(_ None: Re: Bi210   (Alexis Brosssard - 17 Oct, 2015)
(_ None: Re: Bi210   (Alexis Brosssard - 17 Oct, 2015)
(_ None: Re: Bi210   (Alexis Brosssard - 17 Oct, 2015)
2 Question: Re: rdecay01 example Co60.mac   (Volodymyr Morgunov - 04 Nov, 2015)
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