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Geant4 Version: 11.1.1
Operating System: uname -r 5.15.0-113-generic
Compiler/Version: GCC-11.2.0
_CMake Version:_3.16.3
Hello,
I am trying to modify the microelectronics example. I would like to fly some electrons through a vacuum, so I create a material from G4_Galactic. I use the command:
G4Material* world_mat = nist->FindOrBuildMaterial(“G4_Galactic”);
However, I get the following output:
-------- EEEE ------- G4Exception-START -------- EEEE -------
*** G4Exception : em0002
issued by : G4MicroElecMaterialStructure::ReadMaterialFile
file /opt/york/easybuild/generic_arch/software/Geant4/11.1.1-GCC-11.2.0/share/Geant4/data/G4EMLOW8.2/microelec/Structure/Data_Galactic.dat not found!
*** Fatal Exception *** core dump ***
**** Track information is not available at this moment
**** Step information is not available at this moment
-------- EEEE -------- G4Exception-END --------- EEEE -------
*** G4Exception: Aborting execution ***
I have looked into the relevant directory and there are various files for the allowed materials in the microelectronics physics list (e.g. Data_C.dat, Data_Cu.dat etc). I did wonder if I could create a file called Data_Galactic.dat and make it identical to Data_C.dat. Given that the density for Galactic is so low, then I thought this would not matter too much, but I might be mistaken !. However, I don’t have access to the relevant directory and it doesn’t find the file if I put it in my build directory. Can someone suggest a workaround ?
Thanks
Chris