Gamma-Ray Spectrometric Determination of Isotopic Ratios of Plutonium

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概要

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• Plutonium samples (330 μg) of various isotopic compositions were measured with a high-resolution Ge (Li) detector. The γ-rays counted are the 43.5 keV of <SUP>238</SUP>Pu, the 38.7, 51.6 and 129.3 keV of <SUP>299</SUP>Pu, the 45.2 keV of <SUP>240</SUP>Pu, and the 148.6 keV of <SUP>241</SUP>Pu. To estimate the relative photopeak efficiencies of the γ-rays, an empirical curve was derived from measurements of the three γ-rays of <SUP>239</SUP>Pu adopted as internal standard. Data treatment is described in detail as well as the method of correction to account for the activities of <SUP>237</SUP>U and <SUP>241</SUP>Am inherently accumulating in the plutonium sample. The branching ratios of the γ-rays of plutonium were also evaluated by comparing the γ-ray spectrometric results with mass-spectrometric data.

• 一般社団法人 日本原子力学会の論文

著者

• ICHIKAWA Shin-ichi

  Tokai Research Establishment, Japan Atomic Energy Research Institute

• UMEZAWA Hirokazu

  Tokai Research Establishment, Japan Atomic Energy Research Institute

• SUZUKI Toshio

  Tokai Research Establishment, Japan Atomic Energy Research Institute

関連論文

• Gamma-Ray Spectrometric Determination of Isotopic Ratios of Plutonium
• Radiochemical Determination of Fission Rate in JRR-4
• Gamma-ray spectrometry and chemical analysis data of JPDR-I spent fuel.

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