Zinc-65 in Cyclotron Workers

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Science  18 Mar 1960:
Vol. 131, Issue 3403, pp. 830-832
DOI: 10.1126/science.131.3403.830


Small but persistent body burdens of zinc-65 have been found in cyclotron workers. This radionuclide and others are produced by nuclear reactions with the construction materials of the cyclotron. Only zinc-65 has gained entry into the body, but in amounts of less than 1 percent of the maximum permissible amount.

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