<div dir="ltr">Hi Satyajit, <div><br></div><div>There are a couple of ways to generate triple coincidence events in GATE. Both built-in function and post-processing of singles files are feasible to achieve that goal. You may want to check out <a href="https://opengate.readthedocs.io/en/latest/digitizer_and_detector_modeling.html#multiple-coincidences">Multiple coincidences</a>. As to post-processing, you can set up a triple coincidence time window then for every single event, then you search through its neighborhood to see if there is any triple coincidence event. I am not a GATE expert, please use the suggestion with caution. </div><div><br></div><div>Good luck,</div><div><br></div><div>Zhengzhi </div><div> </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Feb 23, 2020 at 2:47 PM Satyajit Ghosh <<a href="mailto:satyajitghosh.email@gmail.com">satyajitghosh.email@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear Gaters,<br><br> We know that digitizer in GATE helps us to realize the real data processing chain of a detector. From Hits, Singles data are generated and from there Coincidence data. Coincidence data are of importance, especially in PET. On the other hand, Singles data are used in SPECT. Now, there are various forms of imaging where triple coincidence is used as imaging data. My question is, <b>can we obtain higher fold data from GATE using digitizer by changing probably some source code?</b> Or, should we stick to user-defined approximate post-processing from hits data outside GATE?<br><br>Cheers<br>Satyajit<br>24-Feb.-2020<br clear="all"><div><br></div>-- <br><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><font face="arial, sans-serif"><b>Satyajit Ghosh</b></font></div><div dir="ltr"><div><font face="arial, sans-serif"><b>PhD Student</b></font></div><div><font face="arial, sans-serif"><b>Nuclear Spectroscopy and Molecular Imaging Lab,<br></b></font><div><font face="arial, sans-serif"><b>Physics Department, IIT Bombay,</b></font></div></div><div><font face="arial, sans-serif"><b>Mumbai-400076, INDIA</b></font></div></div></div><div dir="ltr"><font face="arial, sans-serif"><b></b></font></div></div></div></div></div></div></div></div></div></div></div></div></div>
_______________________________________________<br>
Gate-users mailing list<br>
<a href="mailto:Gate-users@lists.opengatecollaboration.org" target="_blank">Gate-users@lists.opengatecollaboration.org</a><br>
<a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" rel="noreferrer" target="_blank">http://lists.opengatecollaboration.org/mailman/listinfo/gate-users</a></blockquote></div>