[Gate-users] Warning - "Track stuck or not moving"

[Satyajit Ghosh]

Dear Gaters,

                      I am getting this warning (not error, simulation data
is fine!) whenever I am using a *point source*. But when using *volume
source there is no such warning*. I believe this warning slows up my
simulation and hence I want to get rid of that. Warning is like this -

-------- WWWW ------- G4Exception-START -------- WWWW -------
*** G4Exception : GeomNav1002
      issued by : G4Navigator::ComputeStep()
Track stuck or not moving.
          Track stuck, not moving for 10 steps
          in volume -crystal_phys- at point (0,0,0) (local point (0,0,0))
          direction:
(0.1457184533065485,0.3570654572582299,0.9226431550707558) (local
direction: (0.2363685301462595,-0.3047286109927624,0.9226431550707558)).
          Potential geometry or navigation problem !
          Trying pushing it of 1e-07 mm ...Potential overlap in geometry!

*** This is just a warning message. ***

Thanking you
Satyajit Ghosh
2-Sept.-2020

-- 
*Satyajit Ghosh*
*PhD Student*

*Nuclear Spectroscopy and Molecular Imaging Lab,*
*Physics Department, IIT Bombay,*
*Mumbai-400076, INDIA*
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