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Forum: Biasing and Scoring
Re: Question problem with scoring volume can't get apsorbed dose (Toth Arpad)
Re: Idea Re: problem with scoring volume can't get apsorbed dose (Michael H. Kelsey)
Date: Jan 25, 11:34
From: Toth Arpad <Toth Arpad>

On Fri, 25 Jan 2019 07:22:31 GMT, Michael H. Kelsey wrote:
> On Thu, 24 Jan 2019 19:56:01 GMT, Toth Arpad wrote:
> 
> >  I want to simulate a CBCT dose in Cirs IMRT thorax phantom. So I made the body
> >  of phantom, than subtracted wholes in phantom to put the organs inside (lungs,
> >  spine...). Since I have to rotate the phantom i made the organs as daughters of
> >  phantom. The problem is that when I set lungs as scoring volume I', getting the
> >  dose, but when I select the spine or the isocenter I'm getting 0 Gy. 
> 
> You don't need to, and must not, subtract holes before placing
> daughters. Just keep your mother "body" volume whole, and place the
> organ daughters in it. Geant4 does not like it when a daughter volume is
> placed "outside" the space occupied by its putative mother volume.
> 
>   -- Michael Kelsey
> 
>Thank You very much!
>It works  now :)
>
>Toth Arpad

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