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The semiannual reports of the United States Atomic Energy Commission are official organs describing the progress made in the understanding and use of atomic energy. This report is of particular interest to the medical profession, since it deals with radiation hazards and radiation safety. The report points out that safety rules were adequate before the advent of the atom bomb, when about 3 pounds of radium under human control was available in the entire world, but radioactive materials available now are equivalent to millions of pounds of radium, making the former safety rules inadequate. Permissible limits of exposure to various radiations are tabulated for the guidance of the physician and technician working in the presence of "hot" radioactive materials. The role of the "health physicist" is explained. (It is unfortunate that this name was selected for this important technician.) There is a chapter devoted to instruments for detection of radiation
Eighth Semiannual Report of the Atomic Energy Commission, July 1950. JAMA. 1951;145(2):124. doi:10.1001/jama.1951.02920200064034
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