Airborne Scintillation Counter Surveys

CIM Bulletin1955
WITH THE DISCOVERY of natural radioactivity at the end of the 19th century, and the design of equipment for the detection of this phenomenon, radioactivity . surveys bad their inception. Early in the 20th century it was found that almost all rocks are radioactive to a certain degree. This radioactivity is due to the nuclear disintegration of six naturally radioactive elements : potassium, thorium, uranium, rubidium, samarium, and lutecium.
Keywords: gamma radiation, radioactivity, Radium, scintillation counter, time constant, Noise, Radiation, Radioactivity, Radium, Rock, Rocks, Scintillation counters, Standards, Survey, Surveys
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