[Gate-users] a source with rectangular cross section

[Mahdjoub Hamdi]

Hi Asra,

You could just change the surface of of the source from 0.02 mm2 to 200 mm2 to make it equal to the surface of the irradiation field.
Please try to understand the code, you can modify it for your own.

Regards,
Mahjoub
STL, MO, USA

________________________________
De : Asra Talebi <asra.talebi at modares.ac.ir>
Envoyé : lundi 5 août 2019 06:40
À : Mahdjoub Hamdi <mahdjoub.hamdi at hotmail.fr>
Objet : Re: [Gate-users] a source with rectangular cross section


hi dear mahdjoub

this file define a cone beam. i want to define a source that use in radio therapy and cover actually a rectangular field like this picture.



asra sadat talebi
PhD Scholar
Tarbiat Modares University
Department of medical physics
Tehran - Iran
E-mail address:  asra.talebi at modares.ac.ir

asra.talebi at yahoo.com


________________________________
From: Mahdjoub Hamdi <mahdjoub.hamdi at hotmail.fr>
Sent: August 4, 2019 7:34:06 PM
To: Asra Talebi; gate-users at lists.opengatecollaboration.org
Subject: RE: [Gate-users] a source with rectangular cross section

Asra,

Sorry here is the right one:

/gate/source/addSource xraygun
/gate/source/verbose 0
/gate/source/xraygun/gps/verbose 0
/gate/source/xraygun/gps/particle gamma
/gate/source/xraygun/gps/energytype Mono
/gate/source/xraygun/gps/monoenergy 50  keV

/gate/source/xraygun/gps/type Plane
/gate/source/xraygun/gps/shape Rectangle
/gate/source/xraygun/gps/halfx 0.02 mm
/gate/source/xraygun/gps/halfy 0.02 mm
/gate/source/xraygun/gps/angtype iso
/gate/source/xraygun/gps/mintheta  89.9928 deg
/gate/source/xraygun/gps/maxtheta  90.0072 deg
/gate/source/xraygun/gps/minphi  81.4692 deg
/gate/source/xraygun/gps/maxphi  98.5308 deg

/gate/source/xraygun/gps/centre 0. 200 0 mm
/gate/source/xraygun/gps/angtype iso
/gate/source/list


Mahdjoub,
STL, MO, USA
________________________________
De : Asra Talebi <asra.talebi at modares.ac.ir>
Envoyé : dimanche 4 août 2019 05:05
À : Mahdjoub Hamdi <mahdjoub.hamdi at hotmail.fr>
Objet : Re: [Gate-users] a source with rectangular cross section

dear mahdjoub
this file define a source with
asra sadat talebi
PhD Scholar
Tarbiat Modares University
Department of medical physics
Tehran - Iran
E-mail address:  asra.talebi at modares.ac.ir
asra.talebi at yahoo.com

________________________________
From: Mahdjoub Hamdi <mahdjoub.hamdi at hotmail.fr>
Sent: August 4, 2019 6:07:28 AM
To: Asra Talebi; gate-users at lists.opengatecollaboration.org
Subject: RE: [Gate-users] a source with rectangular cross section

Hi Asra,

Are you simulating a CBCT like scanner? If yes here a 120 kVp X-ray spectra covering a uniform rectangular field of view, which I built few years ago, to change the irradiation field you need to change irradiation angle and the source to FOV center distance.

Hope it helps,
Mahdjoub,
STL, MO, USA

________________________________
De : Gate-users <gate-users-bounces at lists.opengatecollaboration.org> de la part de Asra Talebi <asra.talebi at modares.ac.ir>
Envoyé : samedi 3 août 2019 17:20
À : gate-users at lists.opengatecollaboration.org <gate-users at lists.opengatecollaboration.org>
Objet : [Gate-users] a source with rectangular cross section

Does anyone else know how to simulate  a source with rectangular cross section without using beam collimation.


Thanks & Regards

asra sadat talebi
PhD Scholar
Tarbiat Modares University
Department of medical physics
Tehran - Iran
E-mail address:  asra.talebi at modares.ac.ir
asra.talebi at yahoo.com


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