[Gate-users] LSO and LYSO intrinsic activity simulation

[Pietrzyk, Uwe]

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
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&
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Fachbereich C - Physik / D.08.01
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----------------------------------------------------------------------/

On 07 May 2015, at 04:15, wugc <wuguocheng at neusoft.com<mailto: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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