[Gate-users] How to specify a Gaussian sampling over the source?

S. Saghamanesh s.saghamanesh at yahoo.com
Fri Jul 31 10:08:48 CEST 2015

Thank you for your note. Actually I meant a Gaussian shape of the beam not the Gaussian energy distribution. But I looked at the PBS and I think it, in addition to a Gaussian energy distribution, has a "Gaussian shape" capability too. Thanks a lot for your help :)

     On Friday, July 31, 2015 11:51 AM, REUZE SYLVAIN <SYLVAIN.REUZE at gustaveroussy.fr> wrote:

 #yiv2343542029 -- filtered {font-family:Helvetica;panose-1:2 11 6 4 2 2 2 2 2 4;}#yiv2343542029 filtered {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;}#yiv2343542029 p.yiv2343542029MsoNormal, #yiv2343542029 li.yiv2343542029MsoNormal, #yiv2343542029 div.yiv2343542029MsoNormal {margin:0cm;margin-bottom:.0001pt;font-size:12.0pt;}#yiv2343542029 a:link, #yiv2343542029 span.yiv2343542029MsoHyperlink {color:blue;text-decoration:underline;}#yiv2343542029 a:visited, #yiv2343542029 span.yiv2343542029MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv2343542029 pre {margin:0cm;margin-bottom:.0001pt;font-size:10.0pt;}#yiv2343542029 span.yiv2343542029EmailStyle17 {font-family:Arial;color:navy;}#yiv2343542029 filtered {margin:70.85pt 70.85pt 70.85pt 70.85pt;}#yiv2343542029 div.yiv2343542029Section1 {}#yiv2343542029 Dear Somayeh,    It is possible, you can define a source with a Gaussian energy spectrum using PBS:http://wiki.opengatecollaboration.org/index.php/Users_Guide_V7.0:Source#Pencil_Beam_source                                                          Regards,       Sylvain Reuzé Intern in medical physics GUSTAVE ROUSSY Radiotherapy – Medical Physics Department Tél. : (+0033) 1 42 11 54 06 www.gustaveroussy.fr  De : gate-users-bounces at lists.opengatecollaboration.org [mailto:gate-users-bounces at lists.opengatecollaboration.org] De la part de S. Saghamanesh
Envoyé : jeudi 30 juillet 2015 16:14
Cc : Gate-users
Objet : [Gate-users] How to specify a Gaussian sampling over the source?       Hi everybody,    I want to define an extended photon source which should be sampled based on a Gaussian function. But it seems there isn't such a capability in gate! As I found out, one can just select the type (Point, Plane, Volume) and then the shape (rectangular, ellipse, cylinder, ...) of the source. And the gate would sample uniformly over the source. What about if we need a non-uniform (Gaussian) sampling of particles? Does anybody have a clue on this problem? I remember that in MCNP code, that's possible easily.    Thanks in advance Somayeh          

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