Gamma Spectrometry Forum

Hello I'm just starting out and was able to calibrate fine but my baseline has a peak at 2.46MeV and I don't know what it could be.

Hello. I'm in Colin in Canada. I have a 1.5 inch NaI with a well, with an inch of lead around it but I'm I'm getting a double peek for for cs137 with a cs137 source. The double goes away when I filter the results for shape.