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Forum: Medical Applications
Re: Question Change geometry and analysis (Jongseok)
Date: 10 Apr, 2010
From: G.A.P.Cirrone <G.A.P.Cirrone>

On Fri, 09 Apr 2010 01:26:29 GMT, Jongseok wrote:
> Dear Users.
> 
> I'm trying to get the distribution 150 MeV proton energy in 40x20x20
> Phantom.
> 
> So, I changed Phantom size in HadrontherapyDectectorConstruction.cc, and
> changed
> 
> proton energy 63 MeV -> 150 MeV in macro file.
> 
> However, in DoseDistribution.out, there is only energy deposit 0 ~ 200
> voxels.
> 
> It isn't enough to show energy distribution of high energy proton.
> 
> Also, I changed sizeOfVoxelAlongX value in
> adrontherapyDectectorConstruction.cc,
> 
> so I could expand the number of voxels, but energy inverval in phantom
> wasn't
> 
> changed.
> 
> Next, I changed detectorToPhantomPosition. I could confirm other
> inverval's energy distribution(Peak or attenuation), but I couldn't all
> interval's energy distribution(0~40cm).
> 
> In order to get, all energy distribution in 40x20x20 Phantom, Which
> variables should I change?
> 
> Please give me some ways to solve this problem.
> 

Dear User, the new version of Hadrontherapy permits to change all the phantom/detector geometrical parameters (dimensions, positions, number and dimension of the voxels) only using external macro command, so that you do not need to change the code.

Please give a look into the provided macro file: detectorGeometry.mac to see how to do this.

Moreover give a look into the README file (http://g4advancedexamples.lngs.infn.it/Examples/hadrontherapy) where everything is explained

Regards, Pablo Cirrone

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1 Question: Re: Change geometry and analysis   (Jongseok - 11 Apr, 2010)
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