[gate-users] Gamma energy cut

[Franca Cassol-Brunner]

Hi everybody,

I simulate with gate 2.2.0 the interactions of X ray (20 kev) in 
silicon. I would like to lower the gamma energy cut in this material, as 
it seems to be fixed to a 1 mm range (--> 6.88731 keV):

  ========= Table of registered couples ==============================

Index : 1     used in the geometry : Yes     recalculation needed : No
  Material : Silicon
  Range cuts        :  gamma 1 mm     e- 1 mum    e+ 1 mm
  Energy thresholds :  gamma 6.88731 keV    e- 990 eV     e+ 521.113 keV
  Region(s) which use this couple :
     DefaultRegionForTheWorld

====================================================================

My physics is the following:

***************************************************
#       EM  P R O C E S S
/gate/physics/gamma/selectRayleigh lowenergy
/gate/physics/gamma/selectPhotoelectric lowenergy
/gate/physics/gamma/selectCompton lowenergy

#       C U T S	
/gate/physics/setElectronCut 1 mum
/gate/physics/setXRayCut 250 eV

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The setXRayCut seems not to influence the photon energy threshold.
How can I set it?

Thanks for any suggestion.

Cheers

Franca



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  F. Cassol Brunner
  CPPM/IN2P3 (CNRS)          Office: 305
  163, Avenue de Luminy      Phone : (+33) 491827248
  13288, Marseille           Fax   : (+33) 491827299
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