I want to simulate Cs-137 through the cables lying near Ge-detectors and looking at its energy deposition in Germanium detectors. Basically i’m interested in it’s 662 keV gamma line. I did something like this:
/gun/ion 55 137 0 0
/gun/energy 0 keV
But the problem is that the energy spectrum i got at the end has no 662 keV gamma line at all, although the branching ratio for it quite high (94.7 %).
I got the one at 284 keV but not at 662 keV. I don’t know what is going on. It would be really nice if someone could help me with this.