A DISCUSSION OF THE APPROXIMATE NATURE OF THE EXPONENTIAL DECAY LAW AS  APPLIED TO RADIOACTIVE NUCLIDES AND GAMMA RAY ABSORPTION.
D005720:Gamma Rays; D006801:Humans; D011827:Radiation; D011850:Radioactive Waste; D011851:Radioactivity; D011874:Radiometry
D011850:Radioactive Waste
RADIATION; RADIOACTIVE WASTE; RADIOMETRY