<div dir="ltr"><div><span style="color:rgb(0,0,0)">Hello fellow Gate users,<br></span>
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<div><span style="color:rgb(0,0,0)">I am simulating a PET scanner which is
made up of 48 modules. I want to set the orientation and position of
each module differently and independently for each of them. Thus, I
thought of using the "PETscanner" template provided
by Gate, and attaching my module to "level1". This module would be
repeated by a "genericRepeater", with which, in an external
module.placements file, I would define the orientations and positions of
the modules. To begin, I specified the orientations and positions
of perfectly placed modules (to obtain the same geometry as if I would
use a "ring" repeater). Everything works as expected (when I visualize
my geometry, all is good) except that there are no coincidences recorded
while simulating, although there are singles.<br></span>
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<div><span style="color:rgb(0,0,0)">When I replace the "genericRepeater" by a "ring" repeater, I then get coincidences but not the flexibility to position my modules arbitrarily. It seems that using a "genericRepeater" prevents
one from getting coincidences. This seems to be a bug that others in this forum have observed. I wonder if there is something that can be done to fix this issue.<br></span>
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<div><span style="color:rgb(0,0,0)">Thank you for your help,<br></span>
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<span style="color:rgb(0,0,0)">Étienne Auger</span></div>