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Greetings,</div>
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See Table 1.1 at <a href="https://opengate.readthedocs.io/en/latest/defining_a_system_scanner_ct_pet_spect_optical.html#id20" id="LPNoLPOWALinkPreview">https://opengate.readthedocs.io/en/latest/defining_a_system_scanner_ct_pet_spect_optical.html#id20</a></div>
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<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); display: inline !important;">If my understanding of the table is correct, "cylindricalPET" system can only be defined with "box"-es. </span></div>
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Bests,</div>
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Maxime Toussaint</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>De :</b> Gate-users <gate-users-bounces@lists.opengatecollaboration.org> de la part de Xinjie Zeng <xinjie.zeng@stonybrook.edu><br>
<b>Envoyé :</b> 8 novembre 2021 15:43<br>
<b>À :</b> gate-users@lists.opengatecollaboration.org <gate-users@lists.opengatecollaboration.org><br>
<b>Objet :</b> [Gate-users] Attaching the sensitive detectors (SD) to trapezoid volume</font>
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<div dir="ltr">Dear Gate-users,
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<div>I am defining a "general trapezoid" volume to the crystal and it works fine when I only look at the geometry. However, when I try to attach the sensitive detector to the crystal, the simulation breaks and fails. Please see below the set-up:</div>
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/gate/systems/cylindricalPET/crystal/attach crystal<br>
/gate/crystal/attachCrystalSD<br clear="all">
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<div>The Break message is attached. Nevertheless, when I define the geometry to "box", everything is fine. Does someone have experience with this or is there a bug in the trapezoid volume for attachCrystalSD? I have also tried "wedge" volume and the simulation
breaks, too. Any suggestions would be highly appreciated!</div>
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<div>Thank you!</div>
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<div dir="ltr">Xinjie Zeng
<div>Ph.D. student <br>
<div>Department of Electrical and Computer Engineering & Radiology</div>
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<div>Stony Brook University</div>
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