[gate-users] Re:RE: Re:Re: no e-/e+ tracking!

[Bastien Gu é rin]

Dear all,

M. Chen recently pointed out that the routines:

void GateElectronPhysics::SetDeltaRayCut(G4double val)
void GateGammaPhysics::SetDeltaRayCut(G4double val)

have not been yet implemented in Gate. A large value for the electron cut
can force the knock-out e- to deposit their energy locally but they are
still produced. A correct implementation of the two functions above would
prevent also their production. This would finally remove totally and
rigorously the tracking of e- in Gate.
It seems extremely useful to implement these since it could provide a mode
in Gate "without electrons", which is, according to the gate-users talk
archives, what a lot of people try to do. Does s.o. familiar with the code
already implemented correctly these functions?
 
M. Chen: I made the experiments you suggested. It's definitely important to
chose an intelligent value of the e- cut depending on one's application, the
gain in time and file size can be large. I prefer you write me directly if
you want to discuss that further.

All the best,

BG

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Bastien Guerin
PhD candidate, University of Paris
Visiting Fellow, Harvard University
work: 617-525-6629
urgent: 617-817-2762