Half-Lives of Some Cosmogenic Radionuclides: 7Be, 46Sc, 54Mn, 56Co, and 65Zn

Philip J. Cressy, Jr.

doi:dx.doi.org/10.13182/NSE74-A23477

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Home / Publications / Journals / Nuclear Science and Engineering / Volume 55 / Number 4

Half-Lives of Some Cosmogenic Radionuclides: ⁷Be, ⁴⁶Sc, ⁵⁴Mn, ⁵⁶Co, and ⁶⁵Zn

Philip J. Cressy, Jr.

Nuclear Science and Engineering / Volume 55 / Number 4 / December 1974 / Pages 450-451

Technical Paper / dx.doi.org/10.13182/NSE74-A23477

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The decay of five radionuclides used as calibration sources in cosmogenic radionuclide studies was followed for from 3 to 11 half-lives. Least-squares analyses of the gamma-ray counting data yielded the following half-life values: ⁷Be, 53.0 ± 0.3 days; ⁴⁶Sc, 84.34 ± 0.13 days; ⁵⁴Mn, 312.6 ± 0.8 days; ⁵⁶Co, 78.4 ± 0.5 days; and ⁶⁵Zn, 244.3 ± 0.4 days.