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Science 18 March 1960:
Vol. 131. no. 3403, pp. 830 - 832
DOI: 10.1126/science.131.3403.830
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Articles

Zinc-65 in Cyclotron Workers

M. A. Van Dilla 1 and M. J. Engelke 1

1 Los Alamos Scientific Laboratory, Los Alamos, New Mexico

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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Science. ISSN 0036-8075 (print), 1095-9203 (online)