rpp2010-rev-commonly-used-radioactive-sources

rpp2010-rev-commonly-used-radioactive-sources - 31....

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Unformatted text preview: 31. Commonly used radioactive sources 1 31. COMMONLY USED RADIOACTIVE SOURCES Table 31.1. Revised November 1993 by E. Browne (LBNL). Particle Photon Type of Energy Emission Energy Emission Nuclide Half-life decay (MeV) prob. (MeV) prob. 22 11 Na 2.603 y + , EC 0.545 90% 0.511 Annih. 1.275 100% 54 25 Mn 0.855 y EC 0.835 100% Cr K x rays 26% 55 26 Fe 2.73 y EC Mn K x rays: 0.00590 24.4% 0.00649 2.86% 57 27 Co 0.744 y EC 0.014 9% 0.122 86% 0.136 11% Fe K x rays 58% 60 27 Co 5.271 y - 0.316 100% 1.173 100% 1.333 100% 68 32 Ge 0.742 y EC Ga K x rays 44%- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 68 31 Ga + , EC 1.899 90% 0.511 Annih. 1.077 3% 90 38 Sr 28.5 y - 0.546 100%- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 90 39 Y - 2.283 100% 106 44 Ru 1.020 y - 0.039 100%- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
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