<div dir="ltr"><div>Dear gate users:<br><br>I am trying to make a c++ program to obtain the coincidence data from Singles data without digitization such as energy/time blurring. To validate the program. I used the example_PET example to obtain Singles data without digitization and Coincidence data with digitization (energy/time blurring and threshold) using GATE with the same random number generator and seed. <br>
I used the original example file to obtain the coincidence data. For the singles data, I deleted all the digitizer commands except the following:<br><br>/gate/digitizer/Singles/insert adder<br>/gate/digitizer/Singles/insert readout<br>
/gate/digitizer/Singles/readout/setDepth 1<br><br>However, I found the Hits file from the two runs are different in terms of eventID, time and energy starting from the second event. The first events are the same.<br><br>The figure 8.1 of the documentation wiki shows the digitizer which is organized as a chain of modules to process Hits data to Singles data. If I understand correctly, the digitization should not affect the Hits file because it is the raw input.<br>
<br>I am wondering if the process of generation of Hits and energy/time blurring are shared with the same random number generator.<br><br></div>Thanks for your kind help.<br><div><br>Best regards,<br><br>Yicheng<br></div>
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