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Hi Débora,
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<div class="">If you don’t mind potentially increasing your computing time, use the ion source type. This models the full decay of the source with the appropriate energy, abundance, etc. </div>
<div class="">See the User’s Guide for more details: <a href="http://wiki.opengatecollaboration.org/index.php/Users_Guide_V7.0:Source#Defining_the_type_of_source" class="">
http://wiki.opengatecollaboration.org/index.php/Users_Guide_V7.0:Source#Defining_the_type_of_source</a></div>
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<div class="">This type of source uses the Geant4 Radioactive Decay data files.</div>
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<div class="">Cheers,<br class="">
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<div class="">Marc</div>
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<div class="">__________________________</div>
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<div class="">Marc Chamberland, MSc</div>
PhD candidate<br class="">
Department of Physics<br class="">
Carleton University<br class="">
Ottawa (ON)</div>
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<div class="">On Jan 14, 2015, at 10:24, Débora Salvado <<a href="mailto:debbiesal@gmail.com" class="">debbiesal@gmail.com</a>> wrote:</div>
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<div class="">Dear GATE users,<br class="">
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How should I define the energy type for I-123 and In-111 in my SPECT simulations?<br class="">
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For Tc-99m, I'm using :<br class="">
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particle gamma<br class="">
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energytype Mono<br class="">
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monoenergy 141. keV<br class="">
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setForcedHalfLife 6. h<br class="">
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but In-111 has two photopeaks (171 and 245 keV) and I-123 has a significant amount of photons (abundance 3.1%) with a higher energy than the photopeak (159 keV), so I'm not sure how to define my source in either of the cases, I-123 and In-111.<br class="">
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Thanks.<br clear="all" class="">
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<div class="gmail_signature">Debora Salvado</div>
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