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Question 3-Dimensions Dosedistribution in Hadrontherapy. 

Forum: Medical Applications
Date: 02 May, 2010
From: Jongseok <Jongseok>

Dear users.

In order to obtain 3D energy distribution in phantom,

I changed x, y, z voxel sizes into 0.5mm and phantom size into 40cm*40cm*40cm.

Also, I modified detector size to phantom size(40cm*40cm*40cm) to measure energy

distribution of the whole phantom.

So, I got 3D DoseDitribution.out.

However, Energy distribution was strange.

I couldn't find Bragg peak.

Beams penetrate x-axis at y=20cm and z=20cm.

In my opinion, I should find Bragg peak on the range x=0~20 ( y=20cm, z=20cm ),

but energy distribution is smooth.

I couldn't find any curve(Please see an upload file).

What is the problem?

Please give me some advice.

Thanks.

   Attachment:
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2010/05/02/19.56-68978-3D_200MEV_100000.JPG

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1 None: Re: 3-Dimensions Dosedistribution in Hadrontherapy.   (Santi Enrico Mazzaglia - 07 May, 2010)
(_ Question: Re: 3-Dimensions Dosedistribution in Hadrontherapy.   (Jongseok - 08 May, 2010)
(_ Idea: Re: 3-Dimensions Dosedistribution in Hadrontherapy.   (Santi Enrico Mazzaglia - 12 May, 2010)
(_ None: Re: 3-Dimensions Dosedistribution in Hadrontherapy.   (Santi Enrico Mazzaglia - 12 May, 2010)
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