[Gate-users] How to set up material for CsI (NaI) crystal

[cghsu at mx.nthu.edu.tw]

Dear Gaters:

How to set up material for CsI (NaI) crystal? When I try to use the following command in my mac file
# Set the material associated with the crystal volume
/gate/csicrystal/setMaterial CsI # CsI not define yet

I obtain the following error message:
!!! GateVObjectCreator::DefineOwnMaterials: 
Could not find a material needed for the construction of the scene!

Thanks.

CHH