<div dir="ltr"><div><div>Hi Antonio, I have also noticed that coincidences are not generated when the generic repeater is used. I did not find any solution to this on the forum. As a result, I'm writing C code to generating coincidence data based on hits data in the root output. I have personally found that I don't like how Gate generates singles output based on the hits output - it doesn't seem to handle inter-crystal events properly. If you are OK with ignoring this effect, then you may want to look into looping over the singles data and generating your own coincidence data. </div>If anybody has an alternative solution, please share your thoughts. </div>Thanks! </div><div class="gmail_extra"> <div class="gmail_quote">On Tue, Jul 30, 2013 at 8:43 AM, Toninho Antonio <<a href="mailto:acbertolo@gmail.com" target="_blank">acbertolo@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Hi. We are looking to simulate PET systems and when we used the generic repeater to replicate the rsectors, using PETScanner or CYlindricalPET, the coincidences was not generated. Besides that when we kept the same digitizer and used the ring repeater the coincidences were generated correctly. Does anyone used the generic repeater and was able get the coincidences? Is it necessary any specific modifications on digitizer? The Singles are generated in both cases. We tried with two PET system at GATE to test whether the generic repeater was to be used specifically to PETScanner. Cheers, _______________________________________________ Gate-users mailing list <a href="mailto:Gate-users@lists.opengatecollaboration.org">Gate-users@lists.opengatecollaboration.org</a> <a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" target="_blank">http://lists.opengatecollaboration.org/mailman/listinfo/gate-users</a> </blockquote></div> </div>