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Forum: Medical Applications
Re: None run time of hadrontherapy (riazi)
Date: 08 Oct, 2010
From: Santi Enrico Mazzaglia <Santi Enrico Mazzaglia>

Dear user,

in order to speed your simulation, you should increase the step and/or cuts. If you are interested in the dose deposition inside the detector, you can set the cut low (as 10 microns) only here, and very long outside. As for the step I reccomend you to use a value not bigger than five per cent of the slice thickness.

Another way is to divide the simulation among several machines (remember to change the initial random seed in this case!)

Enrico M.

On Sat, 25 Sep 2010 10:53:59 GMT, riazi wrote:

> Dear Geant4 expert I am using Hadrontherapy example with a little change
> for 190 MeV protons with 3D read out geometry (SOBP 9 cm and lateral
> dimention 16 cm). the run time of program for 4000000 particles is very
> long, setCuts= 0.01 mm and waterPhantomStepMax =0.01 mm. would you mind
> helping me how I can reduce the run time. With Best Regard Riazi
> 

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