<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> </head> <body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"> <div><br> </div> Hi, <div><br> </div> <div>you should take Mo-99, i.e. Z=42, A=99 instead, since Tc-99m</div> <div>is part of the Mo-99 decay scheme. I have just tried it with</div> <div>the Spectro-example of EduGATE and it gives a useful spectrum!</div> <div><br> </div> <div>Also, if you use the physicslist mechanism for the physical processes you need to add:</div> <div><br> </div> <div> <div>/gate/physics/addPhysicsList emstandard</div> <div>/gate/physics/addProcess RadioactiveDecay</div> </div> <div><br> </div> <div>Hope this is helpful for you!</div> <div><br> </div> <div>Kind regards,</div> <div><br> </div> <div>Uwe Pietrzyk</div> <div><br> <div> <div><span style="orphans: 2; widows: 2;">/----------------------------------------------------------------------</span></div> <div style="orphans: 2; widows: 2;">Prof. Dr. Uwe Pietrzyk<br> Diplom-Physiker<br> Institut für Neurowissenschaften und Medizin / INM-4<br> Forschungszentrum Jülich GmbH<br> 52425 Jülich<br> Tel: +49-2461-61 4763<br> Fax: +49-2461-61 2820<br> Mobil: +49-162-103-4871<br> eMail: <a href="mailto:U.Pietrzyk@fz-juelich.de">U.Pietrzyk@fz-juelich.de</a><br> <a href="http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html">http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html</a><br> &<br> Bergische Universität Wuppertal<br> Fachbereich C - Physik / D.08.01<br> Gaußstr. 20<br> 42097 Wuppertal<br> Tel: +49-(0)202-439-3523<br> Fax: +49-(0)202-439-2811<br> eMail: <a href="mailto:Uwe.Pietrzyk@physik.uni-wuppertal.de">Uwe.Pietrzyk@physik.uni-wuppertal.de</a><br> <a href="http://www.medizinphysik.uni-wuppertal.de/">http://www.medizinphysik.uni-wuppertal.de</a><br> ----------------------------------------------------------------------/</div> </div> <br> <div> <div>On 30 Jan 2015, at 21:17, Xinchi Hou <<a href="mailto:monicaxinchi@gmail.com">monicaxinchi@gmail.com</a>> wrote:</div> <br class="Apple-interchange-newline"> <blockquote type="cite"> <div dir="ltr">Dear Gate-users, <div><br> </div> <div>I am using GATE 7 for SPECT simulations. For some reason, GATE 7 seems can not recognize metastable source by defining an ion source (shows below,Tc-99m as an example), which can be successfully run by GATE 6.1:</div> <div><br> </div> <div> <div>/gate/source/SourceTC99m/gps/particle ion</div> <div>/gate/source/SourceTC99m/gps/ion 43 99 0 142.6833</div> <div>/gate/source/SourceTC99m/gps/monoenergy 0 keV</div> <div>/gate/source/SourceTC99m/setForcedUnstableFlag true</div> <div>/gate/source/SourceTC99m/setForcedHalfLife 21640 s</div> </div> <div><br> </div> <div>I know we can define 140keV gamma as a source instead of using ion source. However, I need to use many of other metastable isotopes as sources which usually have multiple gamma energies for each of them. </div> <div><br> </div> <div>I really appreciate if somebody could share his/her experience on similar problems.</div> <div><br> </div> <div>My best regards,</div> <div>Monica </div> <div><br> </div> <div><br> </div> </div> _______________________________________________<br> Gate-users mailing list<br> <a href="mailto:Gate-users@lists.opengatecollaboration.org">Gate-users@lists.opengatecollaboration.org</a><br> http://lists.opengatecollaboration.org/mailman/listinfo/gate-users</blockquote> </div> <br> </div> <br> <font face="Arial" color="Black" size="1"><br> ------------------------------------------------------------------------------------------------<br> ------------------------------------------------------------------------------------------------<br> Forschungszentrum Juelich GmbH<br> 52425 Juelich<br> Sitz der Gesellschaft: Juelich<br> Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498<br> Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher<br> Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender),<br> Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,<br> Prof. Dr. Sebastian M. Schmidt<br> ------------------------------------------------------------------------------------------------<br> ------------------------------------------------------------------------------------------------<br> <br> </font> </body> </html>