sebastien.jan at cea.fr
Tue Jun 19 11:10:10 CEST 2007
> I have a problem with the projection "gate.sin" generated during the
> simulation: I think that the spatial blurring has no effect on the
> globalPosZ variable during the creation of this projection.
> I computed the standard deviation of the globalPosZ from both
> "gate.sin" and .root file. The result obtained from the .root file is
> higher than the one given by "gate.sin".
> Does anyone already have this problem? Is it a bug in the code?
It's not a bug, it was defined like that in the code. Historically, this
digitizer module was developed for SPECT application and to blur only in
the X and Y directions according to the fact the system didn't measured
the depht of interaction.
If you want to modify the code to blur in the Z direction, you need to
modify a couple of lines in the GateSpblurring.cc class :
G4double PzNew = Pz;
G4double PzNew = G4RandGauss::shoot(Pz,m_spresolution/2.35);
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