[Gate-users] Re: [Gate-devel] full decay scheme vs pure emission

Sebastien JAN sebastien.jan at cea.fr
Tue Jan 22 13:20:26 CET 2008


> I came to the conclusion that when we replaced the F-18 positron 
> source with a gamma back-to-back source we achieved a gain factor of 
> 1.25 or speed up the simulation by 20%.

I obtained the same difference (~ 20%) with the following configuration 
: Zubal-like phantom : high "granularity"()256x256x128) for emission 
map, low "granularity " for attenuation (32x32x16) and 2 materials for 
brain description (bone and "brain" tissu).


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