[Gate-users] Gate settings for Linac photon beam simulation

[David Sarrut]

Hello Matthias,

it is already rather good. I suggest opt4 instead of opt3 (not sure it
changes a lot, but this is the recommended physics list).
What cuts did you used ?

best,
David
PS: you may be interested in this work regarding replacing phase space file
with a neural network:
https://github.com/OpenGATE/GateContrib/tree/master/dosimetry/gaga-phsp

On Thu, Dec 17, 2020 at 9:23 AM Hartmann, Matthias <
Matthias.Hartmann at hirslanden.ch> wrote:

> Dear Gate-user,
>
>
>
> I want to simulate a simple 6MV photon open field (defined by jaws) beam
> in a water phantom, using a phase space as source.
>
> I selected emstandard_opt3 for the physics list, 2x10E9 total number of
> primaries and a voxel resolution of 4x4x4mm.
>
>
>
> I would expect a more or less smoothed pdd and dose profiles. In
> comparison with measurements, I get the following result:
>
>
>
> Which parameter do I have to adapt to get a better agreement with the
> measurements?
>
>
>
> Thanks for your help!
>
>
>
> Regards,
>
>
>
> Matthias
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-- 
David Sarrut, Phd
Directeur de recherche CNRS
CREATIS, UMR CNRS 5220, Inserm U1206
Centre de lutte contre le cancer Léon Bérard
28 rue Laënnec, 69373 Lyon cedex 08
Tel : 04 78 78 51 51 / 06 74 72 05 42
http://www.creatis.insa-lyon.fr/~dsarrut
_________________________________
 "2 + 2 = 5,  for extremely large values of 2"
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