[Gate-users] Characteristic X-rays

[Pietrzyk, Uwe]

Hi,

as was mentioned to earlier requests, in case you are using gate_v6.2, 
there is indeed a problem with nuclear de-excitation. It is related to
a specific GEANT4-version, at least to my knowledge.
I found this problem some months ago and went back using gate_v6.1
instead with the penelope-model for low-energy and this seems to work
fine.

Hope this helps!

Kind regards,

U. Pietrzyk
 
/----------------------------------------------------------------------
Prof. Dr. Uwe Pietrzyk
Diplom-Physiker
Institut für Neurowissenschaften und Medizin / INM-4
Forschungszentrum Jülich GmbH
52425 Jülich
Tel: +49-2461-61 4763
Fax: +49-2461-61 2820
Mobil: +49-162-103-4871
eMail: U.Pietrzyk at fz-juelich.de
http://www.fz-juelich.de/inm
&
Bergische Universität Wuppertal
Fachbereich C - Physik / D.08.01
Gaußstr. 20
42097 Wuppertal
Tel: +49-(0)202-439-3523
Fax: +49-(0)202-439-2811
eMail: Uwe.Pietrzyk at physik.uni-wuppertal.de
http://www.medizinphysik.uni-wuppertal.de
----------------------------------------------------------------------/









On 05.06.2013, at 18:45, Pedro Luis Esquinas wrote:

Hello GATE users,

I have recently started using GATE and was trying to do some simulations of electron point source in different material. I am looking at the particle track information of all primaries and secondary particles.

I was expecting to find photons from atomic de-excitation in the particle track information (I have used all range of verbose in my .mac file), but seems like my simulations do not account for it. For example, after each photo-electric effect, only a secondary electron is tracked, but not gamma emission from the transition to the vacant shell.

I have tried with all types of Em physics (Penelope, Livermore,...) because I read that fluorescence was activated by default, and also I tried the following in my .mac file:
/run/initialize
  /process/em/deexcitation region true true true
  /process/em/fluo true
  /process/em/auger true
  /process/em/pixe true

I cannot see any photon from the mentioned source. Any suggestion?

Thank you so much in advance,
best,

J-
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