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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">What version of GATE and Geant4 are you using and what ion?<br>
GATE schedules the decay of ions itself according to the activity set by the user. To do so, it calls a function that sets the lifetime of the ion in Geant4 to zero so it decays immediately when it's created. However, in version 10 (.1?, .2? I don't know exactly
when the change was made.) of Geant4, the function (SetPDGLifeTime()) now ignores any attempts to modify the lifetime of an ion. So the ion is created by GATE, but then Geant4 calculates the decay time according to the real half-life of the ion.<br>
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<div class="PlainText">Jared STRYDHORST<br>
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<div style="margin:0"><font face="Calibri,sans-serif" size="2"><span style="font-size:11pt"><font face="Cambria,serif" size="2"><span style="font-size:10pt">Laboratoire Imagerie Moléculaire In Vivo (IMIV)</span></font><font face="Cambria,serif" size="2"><span style="font-size:10pt"><br>
UMR 1023 Inserm/CEA/Université Paris Sud - ERL 9218 CNRS</span></font></span></font></div>
<div style="margin:0"><font face="Calibri,sans-serif" size="2"><span style="font-size:11pt"><font face="Cambria,serif" size="2"><span style="font-size:10pt">CEA/I2BM/Service Hospitalier Frédéric Joliot</span></font></span></font></div>
<div style="margin:0"><font face="Calibri,sans-serif" size="2"><span style="font-size:11pt"><font face="Cambria,serif" size="2"><span style="font-size:10pt">4, place du Général Leclerc</span></font><font face="Cambria,serif" size="2"><span style="font-size:10pt"><br>
91401 ORSAY Cedex</span></font><font face="Cambria,serif" size="2"><span style="font-size:10pt"><br>
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</span></font><a href="mailto:karima.ait-aissa@cea.fr" target="_blank"><font face="Cambria,serif" size="2"><span style="font-size:10pt"></span></font></a></span></font></div>
<div style="margin:0"><font face="Calibri,sans-serif" size="2"><span style="font-size:11pt"><a href="http://i2bm.cea.fr/dsv/i2bm/shfj/imiv" target="_blank"><font face="Cambria,serif" size="2"><span style="font-size:10pt">http://i2bm.cea.fr/dsv/i2bm/shfj/imiv</span></font></a></span></font></div>
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<div style="direction: ltr;" id="divRpF827642"><font face="Tahoma" color="#000000" size="2"><b>De :</b> gate-users-bounces@lists.opengatecollaboration.org [gate-users-bounces@lists.opengatecollaboration.org] de la part de Enrique Muñoz Albaladejo [Enrique.Munoz@ific.uv.es]<br>
<b>Envoyé :</b> lundi 21 décembre 2015 12:32<br>
<b>À :</b> gate-users@lists.opengatecollaboration.org<br>
<b>Objet :</b> [Gate-users] Ion source - timestamp problem GATE 6.1<br>
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<span style="font-size:10pt; color:black" lang="EN-GB">Dear all,<br>
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<span style="font-size:10pt; color:black" lang="EN-GB">I am trying to use an ion source for a PETscanner.</span><span style="font-size:10pt; color:black" lang="EN-GB"></span></p>
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<span style="font-size:10pt; color:black" lang="EN-GB">The simulation provides strange values for the time stamp of the singles.
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The parameter "setTimeStop" was set to 50s, but the timestamp of the first detected single was 3.4x10^17 s.</span><span style="font-size:10pt; color:black" lang="EN-GB"></span></p>
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<span style="font-size:10pt; color:black" lang="EN-GB">I would like to know if there is any solution to this problem.</span><span style="font-size:10pt; color:black" lang="EN-GB"></span></p>
<span style="font-size:10pt; color:black" lang="EN-GB">Best regards</span><span style="font-size:10pt; font-family:Arial; color:black"><font face="sans-serif">,<br>
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Enrique</font><br>
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