The Sealed Isotope Disk Sources by Spectrum Techniques are extremely useful as reference / calibration sources for Gamma Spectroscopy and f...

I was running my spectrometer thru its paces and figured that Ra-226 is a good isotope to test with. Radium thanks to Madame Curie is an ...

My previous post about the Trinitite inspired me to post pictures of some of my minerals. I have hundreds of different Uranium, Thorium and ...

Some time ago, I was purchasing Autunite specimens from a mineral dealer and after a couple of shipments from him, in one of the packages I ...