<html><head></head><body><div class="ydpf2006834yahoo-style-wrap" style="font-family: times new roman, new york, times, serif; font-size: 16px;"><div dir="ltr" data-setdir="false">Dear GATE users,</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I have questions regarding simulating voxelized phantom and source. I simulated voxelized phantom using CT image and voxelized source using PET image as input with the implementation of Production and Stopping actor. This actor produces 2 images which are the location of particles emitted and the location where it stops, respectively.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">My concern is the count in the resulting images(Prod.img and Stop.Img) is not the same and higher (~50%) compared to PET input image. Is there any reasonable argument where the excess count come from? I expected that the count from the simulation is similar to the PET image input. And I am using GATE 7.2.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Thank you very much.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Rukiah</div><div><br></div><div class="ydpf2006834signature"><div><font color="#00007f" face="bookman old style, new york, times, serif"></font> </div><div style="font-size:13px;"><br></div><div style="margin:5px 0px;padding:0px;border:1px solid rgb(204, 204, 204);min-height:0px;line-height:0;font-size:0px;" class="ydpf2006834hr"></div></div></div></body></html>