最小二乗法による純β線放出核種混合試料の液体シチュレーション分離測定　放射性排水および有機廃液への適用

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  • Liquid Scintillation Analysis for Pure .BETA.-Emitter Mixtures by the Method of Least Squares. Application to Radioassay for Radioactive Waste Solution and Organic Liquid Waste.
  • —Application to Radioassay for Radioactive Waste Solution and Organic Liquid Waste—
  • ―放射性排水および有機廃液への適用―

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説明

In radioactivity monitoring, analytical radioassay for nuclides in a monitoring sample is the first choice to be carried out for reasonable countermeasure. The method of least squares has been applied to the radioassay for relatively low-level pure β-emitter mixtures (3H, 14C, 32P and 45Ca) in radioactive waste solution and organic liquid waste. This liquid scintillation technique can get rid of the difficulty of the analysis for a pure β-emitter mixture in a monitoring sample, and provides fundamental information for subsequent waste-treatment. Detection limit of the four nuclides was estimated to be 0.2 -1.0 Bq/cm3, which is sufficiently low compared with the values for authorized safety guideline.

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