[gate-users] Doppler broadening effect

Assen Kirov kirova at mskcc.org
Wed Dec 7 16:51:48 CET 2005

Hi Sang-June,

GATE uses GEANT4's physics processes.
So if you call the low-energy extension you should have Doppler 
broadening effects
since according to GEANT4's manual it is accounted for E< 5 MeV.

sangjune park wrote:

> Dear all,
> The Doppler broadening effect is strongly dependent on both scattering 
> medium and incidence particle energy.
> EGS4+KEK extension, EGSnrc, GEANT4 include Doppler broadening effect.  
> In the physics process of the GATE, the Compton formula is derived 
> under the conditions that the electron is free and at rest. Therefore, 
> it looks GATE does not include Doppler broadening.  If I am wrong, 
> please give me information regarding how to include Doppler broadening 
> effect in GATE simulation.
> Thank you for your help in advance.
> Best,
> Sang-June Park
>gate-users mailing list
>gate-users at lphe1pet1.epfl.ch

Assen S. Kirov, Ph.D.
Assistant Attending Physicist
Department of Medical Physics, Room S-1119H
Memorial Sloan-Kettering Cancer Center
1275 York Avenue,  New York, NY 10021
tel (212) 639-7126, fax (212) 717 3010

     Please note that this e-mail and any files transmitted with it may be 
     privileged, confidential, and protected from disclosure under 
     applicable law. If the reader of this message is not the intended 
     recipient, or an employee or agent responsible for delivering this 
     message to the intended recipient, you are hereby notified that any 
     reading, dissemination, distribution, copying, or other use of this 
     communication or any of its attachments is strictly prohibited.  If 
     you have received this communication in error, please notify the 
     sender immediately by replying to this message and deleting this 
     message, any attachments, and all copies and backups from your 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opengatecollaboration.org/mailman/private/gate-users/attachments/20051207/d2e76458/attachment.htm>

More information about the Gate-users mailing list