<html><head></head><body><div style="font-family:times new roman, new york, times, serif;font-size:16px;"><div style="font-family:times new roman, new york, times, serif;font-size:16px;"><div style="font-family:times new roman, new york, times, serif;font-size:16px;"><div style="font-family:times new roman, new york, times, serif;font-size:16px;"><div style="font-family:times new roman, new york, times, serif;font-size:16px;"><div style="font-family:times new roman, new york, times, serif;font-size:16px;"><div style="font-family:times new roman, new york, times, serif;font-size:16px;"><div style="font-family:times new roman, new york, times, serif;font-size:16px;"><div style="font-family:times new roman, new york, times, serif;font-size:16px;"><div><div>Hi Gate users,</div><div><br></div><div>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><div><br></div><div>#to print all simulation output on screen<br></div><div>/tracking/verbose 2 <br></div><div><br></div><div>#extract the annihilation point coordinates<br></div><div>Gate code.mac | grep "phantom_phys annihil" >output.txt <br></div><div><br></div><div>However, I have difficulties to find the emission points as there is no physics process output that related to it, except the process called <br></div><div>'<g class="gr_ gr_332 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del multiReplace" 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><div><br></div><div>Thank you.<br><br><br></div><div class="ydpe6a23de2signature"><div><font face="bookman old style, new york, times, serif" color="#00007f"></font> </div><div><em><font size="3">Rukiah A Latiff</font></em></div><div><div><em><font size="3">PhD student</font></em></div><div><em><font size="3">The University of Sydney<br></font></em></div><em></em><font size="3"><em><var id="ydpe6a23de2yui-ie-cursor"></var></em></font></div><div style="margin: 5px 0px; padding: 0px; border-color: rgb(204, 204, 204); border-style: solid; border-width: 1px; min-height: 0px; line-height: 0; font-size: 0px;" class="ydpe6a23de2hr"></div></div></div></div></div></div></div></div></div></div></div></div></body></html>