Calibration of millicurie gamma sources using gamma ray spectrometry.
D002587:Cesium Isotopes; D003037:Cobalt Radioisotopes; D005720:Gamma Rays; D011868:Radioisotopes; D013051:Spectrometry, Gamma; D014894:Weights and Measures
D002587:Cesium Isotopes; D003037:Cobalt Radioisotopes; D011868:Radioisotopes