Americium is a man made radioactive isotope, and is commonly found in smoke detectors. The source is an alpha emitter, and in the decay process it also kicks out a gamma at 59.6KeV. This is a typical gamma spectrum from Americium, as you can see, the tall peak at 59.6 KeV is very obvious and over powers everything else, it also has a gamma at 26.3KeV which is sometimes visible to the left of the tall peak. There are a whole bunch of other gamma rays from 241Am, but these are not easy to see with NaI detectors.
The following spectrum of 241Am, was submitted by Peter Daley, recorded with a GS-1100A and a 2" Alpha Spectra NaI detector. Excellent resolution and a very typical 241Am shape. Recognising isotopes by the shape of their spectra is an art and takes practice, which is why we are building this database of spectra.
There are no products to list in this category.