CPM (Counts Per Minute) 1 : A commonly used measure of radioactivity from particle emitters; since a detection instrument cannot operate at 100% efficiency, the CPM found will be less than the actual DPM
28- Radiation Safety Office, Harvard University Department of Environmental Health & Safety, Radiation: Glossary of Terms, Cambridge, MA, USA 2010. radiation_protection@harvard.edu. (Rad Sfty, Prot and Cont - Amer) {82}