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Forum: Medical Applications
Re: Question How to get SOBP output with Hadrontherapy example (Jongseok)
Re: Feedback Re: How to get SOBP output with Hadrontherapy example (G.A.P.Cirrone)
Re: Question Re: How to get SOBP output with Hadrontherapy example (Jongseok)
Date: 04 Apr, 2010
From: G.A.P.Cirrone <G.A.P.Cirrone>

On Mon, 05 Apr 2010 02:13:18 GMT, Jongseok wrote:
> Thank for answering my question.
> 
> As you told me, I changed modulator angles (1degree)for each beam(1000),
> and I didn't change an output file name for summing all outputs.
> 
> However, I couldn't get enough SOBP.
> 
> In the following picture,
> 
> THE RED LINE:
> 
> no degree change of modulator /run/beamOn 4000
> 
> THE BLUE LINE:
> 
> /run/beamOn 1000 /modulator/angle 1 deg /run/beamOn 1000
> /modulator/angle 1 deg /run/beamOn 1000 /modulator/angle 1 deg
> /run/beamOn 1000
> 
> THE GREEN LINE:
> 
> /run/beamOn 2000 /modulator/angle 1 deg /run/beamOn 2000
> 
> I modified running commands in proton_therapy.mac like previous
> explanation.
> 
> As you see attachment file, there is no SOBP.
> 
> Are there some mistakes in commands?
> 
> Or Should I change material for each elements?
> 
>    Attachment:
>       http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2010/04/04/19.04-39276-output.JPG
> 

Hi, have you checked the modulator material? It is air by default and must be assigned to PMMA for a correct simulation.

I can suggest you to firstly start with the macro "modulator.mac" provided inside the example.

Regards, Pablo Cirrone

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1 Question: Re: How to get SOBP output with Hadrontherapy example   (Jongseok - 04 Apr, 2010)
(_ Feedback: Re: How to get SOBP output with Hadrontherapy example   (G.A.P.Cirrone - 04 Apr, 2010)
(_ Ok: Re: How to get SOBP output with Hadrontherapy example   (Jongseok - 05 Apr, 2010)
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