Abstract
Technetium has some 15 known isotopes, ranging from Tc-92 to Tc-107; none of these isotopes are stable but three of them are very long-lived, viz. Tc-97 (T 1/2: 2·6 × 106y), Tc-98 (T l/2: 1·5 × 106y) and Tc-99 (T 1/2: 2·1 × 105y). Although produced in nature by spontaneous fission of uranium-238, the major source of the long-lived isotopes stems from fission in nuclear weapons and in reactors; the use of technetium in medicine makes a relatively small contribution.
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© 1986 ECSC, EEC, EAEC, Brussels and Luxembourg
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Luykx, F. (1986). Technetium Discharges into the Environment. In: Desmet, G., Myttenaere, C. (eds) Technetium in the Environment. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4189-2_2
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DOI: https://doi.org/10.1007/978-94-009-4189-2_2
Publisher Name: Springer, Dordrecht
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