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On Sat, 14 Jun 2014 16:56:47 GMT, George Dedes wrote:
> after having implemented the material properties in my code based on the > LXe example, I get the following runtime error: > > -------- EEEE ------- G4Exception-START -------- EEEE ------- > *** G4Exception : mat205 > issued by : G4MaterialPropertiesTable::SetGROUPVEL() > Optical Photon Energy <= 0 > *** Fatal Exception *** core dump *** > -------- EEEE -------- G4Exception-END --------- EEEE ------- > > The G4MaterialPropertiesTable.cc is the class that seems to throw this > exception, although I don't understand why/how a 0 or negative energy > optical photon is created. Any directions/suggestion where to look for > the problem are really welcomed!
I ran into this problem myself, but without more details about your own app, I don't know if my situation will match. The _immediate_ cause of your problem is that your RINDEX table has zeroes for one or more of the energy bin entries. You should see this by adding the statement "mpt->DumpTable();" into your code right after you've created and filled the table (here, "mpt" is your pointer).
In my case, that problem was caused because I had all of my materials being created in a static object during the kernel initialization (i.e., before the first line of main()). The order in which static and const objects are filled up is strongly compiler-dependent, and my compiler decided to create my materials manager _before_ the G4SystemOfUnits parameters had been filled! Thus, among other things, eV was zero :-(
By changing my materials manager to be a regular singleton, which got created the first time it's "Instance()" function was called, everything worked normally.
-- Michael Kelsey