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Radiation Protection Dosimetry 45:13-18 (1992)
© 1992 Oxford University Press
Measurement of 222Rn: A Brief History
There have probably been more measurements of radon and its short-lived decay products than of any other radioactivity except weapons test fallout. Even Chernobyl would seem to have been a smaller effort. There are two reasons for this mass of data; first, the measurements are quite easy and, second, someone is willing to pay for them. The ease arises because gaseous 222R can be readily separated from solid radionuclides and other radon isotopes decay away rapidly. The concentrated burst of energy from the alpha decays of radon and its polonium daughters can produce measurable effects in gases, liquids and solids, allowing an enormous choice in detectors. This paper will trace the development of some of the measuring techniques from the scientific efforts at the turn of the century to the radon measurements industry that exists today.
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