Gamma ray spectroscopy in introductory physics | Hugonweb Annotated Link Bibliography

An article in The Physics Teacher by Jim Pantaleone about using an inexpensive gamma ray spectrometer in introductory lab. Example activities include measuring the radioactivity of a bag of potassium chloride pellets, observing backscatter from a lab table of a cesium-137 source, and estimating the efficiency of the spectrometer with a chunk of uranium ore.