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<div dir="ltr" data-setdir="false">Hi Xinjie, </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"> <span>I also faced this problem last week when I was simulating a voxelized phantom using the voxelized source for a dosimetry simulation. But I found that this is due to the source definition; I was using the beta spectrum simulation, but when I change the source file format using the histogram and discrete spectrum type, it was gone. </span></div><div dir="ltr" data-setdir="false"><span><br></span></div><div dir="ltr" data-setdir="false">Best, </div><div dir="ltr" data-setdir="false">Ashok</div><div><br></div>
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On Monday, 12 April 2021, 04:01:36 pm GMT-5, Xinjie Cao <xinjie.cao@stonybrook.edu> wrote:
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<div><div id="yiv6029948154"><div dir="ltr">Dear all,<div><br></div><div>I got a warning from my voxelized phantom simulation log as follows,</div><div>-------- WWWW ------- G4Exception-START -------- WWWW -------<br>*** G4Exception : GeomNav1002<br> issued by : G4Navigator::ComputeStep()<br>Track stuck or not moving.<br> Track stuck, not moving for 10 steps<br> in volume -hof_brain_physVol- at point (94.23974773575026,-188.800064708837,299.9999999999999) (local point (-0.2602522642497433,-0.3000647088369703,0.4999999999998863))<br> direction: (-0.3752814347046034,-0.3143147678848536,0.871992013412706) (local direction: (-0.3752814347046034,-0.3143147678848536,0.871992013412706)).<br> Potential geometry or navigation problem !<br> Trying pushing it of 1e-07 mm ...Potential overlap in geometry!<br><br>*** This is just a warning message. ***<br>-------- WWWW -------- G4Exception-END --------- WWWW -------<br></div><div><br></div><div>And it looks like the root output data were very small whenever I got this warning, I have no idea whether there is any correlation between the warning and the small output, and I am curious whether this warning is a severe problem or neglectable.</div><div><br></div><div>Any answer will be highly appreciated!</div><div><br></div><div>Thanks,</div><div>Xinjie</div></div>
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