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Forum: Analysis
Re: None Replica and energy density deposition (Olivier Dadoun)
Date: 09 Jul, 2009
From: michel maire <michel maire>

On Tue, 07 Jul 2009 10:02:26 GMT, Olivier Dadoun wrote:
> Hello,
> 
> I am studying the energy density deposition (unit in MeV/mm3) inside a Target of Tungsten.
> To do so I have segmented my target in N_Cell_z*N_Cell_x*N_Cell_y which are my elementary volumes (using Replica Volume).
> I retrieved the cell hits using
>  G4int NrX   = aStep->GetPreStepPoint()->GetTouchable()->GetReplicaNumber(1);
>  G4int NrY   = aStep->GetPreStepPoint()->GetTouchable()->GetReplicaNumber(2);
>  G4int NrZ   = aStep->GetPreStepPoint()->GetTouchable()->GetReplicaNumber(0);
>  and the cumulated deposited energy is
> depESum[NrZ][NrX][NrY] += aStep->GetTotalEnergyDeposit();
> 
> Finally I fill a 3D histo using ROOT.
> 
> I am interested in the Peak Energy Density Deposition, i.e the maximum
> value of depESum divided by the volume of the elementary cell volume.
> 
> My problem is that this number is strongly dependant of the number of
> Cells I chose. Do you have any idea of what I am doing wrong?
> 
> In advance thank you Olivier
> 

 Shower shape must not depend too much of cell's granularity ...
 - what amount of variation are you speaking about ?
 - what is typical size of the cells ?
 - what is the incident energy ?

 We have test-examples to study shower shape (al least in 1 dimension).
 Try to reproduce your results with TestEm2 or TestEm11 (in examples/extended/electromagnetic)

     Michel

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1 None: Re: Replica and energy density deposition   (Olivier Dadoun - 09 Jul, 2009)
(_ None: Re: Replica and energy density deposition   (michel maire - 10 Jul, 2009)
(_ None: Re: Replica and energy density deposition   (Olivier Dadoun - 12 Jul, 2009)
(_ None: Re: Replica and energy density deposition   (michel maire - 15 Jul, 2009)
(_ None: Re: Replica and energy density deposition   (Olivier Dadoun - 21 Jul, 2009)
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