[Gate-users] LSO and LYSO intrinsic activity simulation

Thu May 7 09:41:50 CEST 2015

 Dear u.pietrzyk： 

    Thanks for your reply, your suggestion is helpful!

Best regards,
2015-05-07

Wu Guocheng 
RNS Department 

Neusoft Medical System Co., Ltd. 
No. 16 Century Road. Hun Nan New District 
Shenyang 110179, PRC 

Tel: (86 24) 8366 2656

From: Pietrzyk, Uwe
Date: 2015-05-07 15:22
To: wuguocheng
CC: gate-users at lists.opengatecollaboration.org
Subject: Re: [Gate-users] LSO and LYSO intrinsic activity simulation

Hi Wu Guocheng, 

there have a number of eMails concerning this topic very recently.
You should check earlier eMails, too!

Just briefly:

You may find a solution to your problem with the following instructions
to define the source:

 #####################################
#   Lu-176 source of LSO
#####################################
/gate/source/addSource SourceConfinement
/gate/source/SourceConfinement/gps/type Volume
/gate/source/SourceConfinement/gps/shape Cylinder
/gate/source/SourceConfinement/gps/radius 9.3 cm
/gate/source/SourceConfinement/gps/halfz 6.25 cm
/gate/source/SourceConfinement/gps/centre 0.0 0.0 0.0 cm
/gate/source/SourceConfinement/gps/particle ion
/gate/source/SourceConfinement/setActivity 159552. Bq
/gate/source/SourceConfinement/gps/ion 71 176 0 0
/gate/source/SourceConfinement/gps/energy 0. keV
/gate/source/SourceConfinement/setForcedUnstableFlag true
/gate/source/SourceConfinement/setForcedHalfLife 1192060800000000000 s
/gate/source/SourceConfinement/gps/number 1
/gate/source/SourceConfinement/gps/confine crystal

/gate/source/SourceConfinement/gps/angtype  iso
/gate/source/SourceConfinement/gps/mintheta 0. deg
/gate/source/SourceConfinement/gps/maxtheta 180. deg
/gate/source/SourceConfinement/gps/minphi 0. deg
/gate/source/SourceConfinement/gps/maxphi 360. deg

!!Note that it is important to to confine the source volume to the crystal!!

Kind regards,

Uwe 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/inm-4/DE/Home/home_node.html
&
Bergische Universit??t Wuppertal
Fachbereich C - Physik / D.08.01
Gau??str. 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 07 May 2015, at 04:15, wugc <wuguocheng at neusoft.com> wrote:

Dear Gaters,

LSO and LYSO have intrinsic radioactivity due to the presence of 176Lu. and I want to simulation of the intrinsic activity using GATE, but I don't know how to define The intrinsic background？
Does anyone know how to define this?

With kind regards,
2015-05-07

Wu Guocheng 
RNS Department 

Neusoft Medical System Co., Ltd. 
No. 16 Century Road. Hun Nan New District 
Shenyang 110179, PRC 

Tel: (86 24) 8366 2656
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