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Hi Rukiah,
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<div class="">I would highly recommend double check your Physics list and make sure that the annihilation process was “enabled” (/gate/physics/addProcess PositronAnnihilation). In addition, take into account the the physic list mechanism has been changing
since the GATEv 7.0 and now there is a big change as compared to GATEv 8.1. </div>
<div class="">To find out more:</div>
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<div class=""><a href="http://wiki.opengatecollaboration.org/index.php/Users_Guide:Setting_up_the_physics" class="">http://wiki.opengatecollaboration.org/index.php/Users_Guide:Setting_up_the_physics</a></div>
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<div class="">Cheers</div>
<div class="">Paulo</div>
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<div class=""><font size="1" class="" style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><span class="" style="font-size: 11px;">Doctoral researcher</span></font><font size="1" class="" style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><span class="" style="font-size: 11px;"><br class="">
Ghent University & </span></font><span class="" style="font-family: Arial, Helvetica, sans-serif; font-size: 11px; background-color: rgb(255, 255, 255);">KU Leuven</span><span class="" style="font-size: 11px; font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"> -
CNPq</span></div>
<div class=""><font size="1" class="" style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><span class="" style="font-size: 11px;">Medical Imaging and Signal Processing (MEDISIP</span></font><span class="" style="font-size: 11px; font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">)</span></div>
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<div class="">On 13 Sep 2018, at 08:12, Rukiah <<a href="mailto:katoshka_7880@yahoo.com" class="">katoshka_7880@yahoo.com</a>> wrote:</div>
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<div class="">Hi Gate users,</div>
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<div class="">To measure a positron range, I had to collect the positron annihilation points coordinates and emission points coordinates. As I am an intermediate user of GATE and Linux, I used this method to collect the coordinates:</div>
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<div class="">#to print all simulation output on screen<br class="">
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<div class="">/tracking/verbose 2 <br class="">
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<div class="">#extract the annihilation point coordinates<br class="">
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<div class="">Gate code.mac | grep "phantom_phys annihil" >output.txt <br class="">
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<div class="">However, I have difficulties to find the emission points as there is no physics process output that related to it, except the process called
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<div class="">'<g class="gr_332 gr_inline_cards multiReplace ContextualSpelling gr_run_anim ins-del gr_spell gr_ gr-alert" id="332" data-gr-id="332">initStep</g>' for example as attached. Can anyone confirm if the InitStep is actually represents the emission
points?</div>
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<div class="">Thank you.<br class="">
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<div class=""><font face="bookman old style, new york, times, serif" color="#00007f" class=""></font> </div>
<div class=""><em class=""><font size="3" class="">Rukiah A Latiff</font></em></div>
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<div class=""><em class=""><font size="3" class="">PhD student</font></em></div>
<div class=""><em class=""><font size="3" class="">The University of Sydney<br class="">
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<span id="cid:1e620aa1-188e-3192-8ee7-60e72d1011a9@yahoo.com"><Gate_InitStep.png></span>_______________________________________________<br class="">
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