Measurement of the absolute activity of
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Carmen C. Bueno; M.Damy S. Santos
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Article
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1993
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Elsevier Science
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English
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The absolute activity of z'5U contained in a sample was measured utilizing a sum-coincidence circuit which selects only the a-particles emitted simultaneously with the 143 and 186 keV gamma radiations from the 23'Th (product nucleus). The a-particles were detected by means of a new type of a gas sci