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<p class="MsoNormal">Good morning GATE Users,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m relatively new to GATE and I’m defining my first PET system to model an experimental system we have in our lab. I’m using the generic repeater to arrange some boxes I have that each contain 4 block detectors. The boxes are arranged
in a square formation, with 4 boxes on each side, totalling 16 boxes. The system I’m using is the ‘PETscanner’.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The placement of my boxes appears correct on the visualiser and my digitizer allows me to obtain valid single events, however I don’t get any coincidences. I have looked through the singles file and there are a number of events which I
believe should be classed as coincidences yet my output file remains empty. I’ve managed to obtain coincidences using this digitizer with a cylindricalPET system so I believe the fault must lie in my geometry.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Would anyone be able to assist me please? I’ve attached my geometry file and digitizer file for reference.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Cheers<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Sam<span style="color:#1F497D"><o:p></o:p></span></p>
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