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Komura Kazuhisa; Sakanoue, Masanobu; Yamamoto, Masayoshi
Health Physics: June 1984
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The determination of the 240Pu/239Pu isotopic ratio in environmental samples has been attempted by the measurement of the Lx/alpha-ray activity ratio using a Ge-LEPS (low-energy photon spectrometer) and a surface-barrier Si detector. By this method, interesting data were obtained for various samples collected from Thule, Greenland, Bikini Atoll and Nagasaki, as well as for some soils collected from near and off site locations of atomic power stations.

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