[Gate-users] add new source

[Pietrzyk, Uwe]

Hello Seta al-Enazi,

the answer to your problem is given in the terminal printout:

You have specified Ga18 for the positron source with energy
distribution corresponding to Ga-68. But unlike for Fluor18
or Oxygen15, Ga-68 obviously does not exist!
An easy workaround should be to use an ion source for
Gallium 68, something like this:

/gate/source/IonSource/gps/particle ion
/gate/source/IonSource/gps/ion 31 68 0 0
/gate/source/IonSource/setForcedUnstableFlag true
/gate/source/IonSource/setForcedHalfLife 4058.0 s
/gate/source/IonSource/gps/energytype Mono
/gate/source/IonSource/gps/monoenergy 0. MeV
/gate/source/IonSource/gps/number 1

It will be slower but should take into account the original
energy distribution.

Hope this helps. Please try.

Kind regards,

U. 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<mailto:U.Pietrzyk at fz-juelich.de>
http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html
&
Bergische Universität Wuppertal
Fachbereich C - Physik / D.08.01
Gaußstr. 20
42097 Wuppertal
Tel: +49-(0)202-439-3523
Fax: +49-(0)202-439-2811
eMail: Uwe.Pietrzyk at physik.uni-wuppertal.de<mailto:Uwe.Pietrzyk at physik.uni-wuppertal.de>
http://www.medizinphysik.uni-wuppertal.de<http://www.medizinphysik.uni-wuppertal.de/>
----------------------------------------------------------------------/

On 23 Feb 2015, at 22:02, seta al-enazi <seta_enazi at yahoo.com<mailto:seta_enazi at yahoo.com>> wrote:


Dear PietrZyk

thank you for your responce

my source was Ga-68

and i wrote it as the following ;

/gate/source/addSource Ga68LineSource
/gate/source/Ga68LineSource/setActivity 10. becquerel

/gate/source/Ga68LineSource/gps/particle e+
/gate/source/Ga68LineSource/setForcedUnstableFlag true
/gate/source/Ga68LineSource/setForcedHalfLife 4080 s
/gate/source/Ga68LineSource/gps/energytype Ga18
/gate/source/Ga68LineSource/gps/type Volume
/gate/source/Ga68LineSource/gps/shape Cylinder
/gate/source/Ga68LineSource/gps/radius .5 mm
/gate/source/Ga68LineSource/gps/halfz 34.0 cm
/gate/source/Ga68LineSource/gps/angtype iso
/gate/source/Ga68LineSource/gps/centre 0. -2.0 0. cm

and i got this error massege
parameter value is not listed in the candidate List.
***** Illegal parameter (0) </gate/source/Ga68LineSource/gps/energytype Ga18>
 so how can i add this new source
should i used addSource function in the GateSourceMgr file?

regards
sitah





On Monday, February 23, 2015 12:55 AM, "Pietrzyk, Uwe" <u.pietrzyk at fz-juelich.de<mailto:u.pietrzyk at fz-juelich.de>> wrote:



Hi,

without a printout from the terminal and the respective macro
you have changed it is very difficult to help you.

Kind regards,

U. 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<mailto:U.Pietrzyk at fz-juelich.de>
http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html
&
Bergische Universität Wuppertal
Fachbereich C - Physik / D.08.01
Gaußstr. 20
42097 Wuppertal
Tel: +49-(0)202-439-3523
Fax: +49-(0)202-439-2811
eMail: Uwe.Pietrzyk at physik.uni-wuppertal.de<mailto:Uwe.Pietrzyk at physik.uni-wuppertal.de>
http://www.medizinphysik.uni-wuppertal.de<http://www.medizinphysik.uni-wuppertal.de/>
----------------------------------------------------------------------/

On 22 Feb 2015, at 18:50, seta al-enazi <seta_enazi at yahoo.com<mailto:seta_enazi at yahoo.com>> wrote:

 Dear Gater

i have a problem to add a new source to the benchPET instead of the standard sources (F-18 and O-15), i wrote all information about the new source in macro file , this new source emits tow gamma photon (511 KeV) and another single gamma photon
 but i got an error message IT IS NOT DEFINE
how can i define  new source in Gate?

regards
ÇáãÓÊÞÈá ãáß áÃÕÍÇÈ ÇáÃÍáÇã ÇáÌãíáÉ ..

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