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Yoshikawa, Hideki; Nakahara, Hiromichi
Proceedings of the workshop and symposium on the properties and behavior of thoron and thoron progeny, 19951996
Proceedings of the workshop and symposium on the properties and behavior of thoron and thoron progeny, 19951996
AbstractAbstract
[en] Determinations of 220Rn and 222Rn concentrations in a geothermal fluid were carried out by means of a liquid scintillation counter. Three determination methods were developed and used depending on the geological conditions of the geothermal field. They were 1) measurement of activities of 220Rn and its progeny together with those of 222Rn and its progeny which coexist with the 220Rn at the field, 2) measurement of radioactivities of 220Rn and its progeny by analysis of their α-ray spectra, and 3) radiochemical separation of Pb followed by radioactivity measurement after attainment of radioactive equilibrium between 220Rn and 212Pb, and 222Rn and 214Pb. Concentrations of 220Rn and 222Rn were determined at some representative geothermal areas in Japan. (author)
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Shimo, Michikuni (Gifu Coll. of Medical Technology, Seki (Japan)); Tsujimoto, Tadashi (eds.); Kyoto Univ., Kumatori, Osaka (Japan). Research Reactor Inst; 127 p; Mar 1996; p. 45-60; Workshop and symposium on the properties and behavior of thoron and thoron progeny; Kumatori, Osaka (Japan); 8 Aug 1995
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Report
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Conference
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ALPHA DECAY RADIOISOTOPES, CHARGED PARTICLE DETECTION, DAYS LIVING RADIOISOTOPES, DETECTION, ENVIRONMENTAL TRANSPORT, EVEN-EVEN NUCLEI, FLUIDS, GEOTHERMAL FLUIDS, HEAVY NUCLEI, ISOTOPES, MASS TRANSFER, MEASURING INSTRUMENTS, NUCLEI, RADIATION DETECTION, RADIATION DETECTORS, RADIOACTIVITY, RADIOISOTOPES, RADON ISOTOPES, SCINTILLATION COUNTERS, SECONDS LIVING RADIOISOTOPES, SPECTROSCOPY
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