Study for Isotopic Analysis of Plutonium in the Environment by Internal Conversion Electron and alpha-ray Spectrometry

内转换电子和α射线能谱分析环境中钚同位素的研究

• 批准号: 63580170
• 负责人: SHIOKAWA Yoshinobu
• 金额: $ 1.22万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63580170/
• 关键词: Isotope analysis; Internal Conversion Electron; Alpha ray; Plutonium; Curium; Actinide; アクチニド; 内部転換電子スペクトロメトリー; 環境放射能; 同位体比

The isotopic ratios ^<240>Pu/^<239>Pu in plutonium samples purified freshly and allowed to stand for a long time were determined by using a high resolution internal conversion electron spectrometer. As a result, it was proved that the above ratios can be determined accurately and precisely. The method was also examined further through a similar determination with curium samples. It was demonstrated that ^<244>Cm was effectively determined by a comparative measurement. On the other hand, the conversion electron intensities of ^<243>Cm were re-evaluated. Furthermore, a technique coupled with alpha-ray spectrometry, in order to determine the isotopic ratio in samples with low-level radioactivity, was also examined.

用高分辨率内转换电子能谱仪测定了新鲜提纯和长期放置的钚样品的同位素比值。结果表明，该方法能准确、准确地测定上述比例。该方法也通过类似的测定来进一步检验。结果表明，通过对比测量，可以有效地确定^&lt；244&>cm。另一方面，重新计算了^&lt；243&gt；Cm的转换电子强度。此外，还研究了一种与阿尔法射线光谱分析相结合的技术，以确定低水平放射性样品中的同位素比率。

项目成果

Y.Shiokawa, R.Amano, M.Yagi, A.Nomura: "Micropreparation Technique for Actinide Compounds by Chemical Vapor Deposition Using beta-diketone Chelates: Preparation of oxide" J.Less-Common Metals.

Y.Shiokawa、R.Amano、M.Yagi、A.Nomura：“使用 β-二酮螯合物通过化学气相沉积制备锕系化合物的微量制备技术：氧化物的制备”J.Less-Common Metals。

M.Yagi, T.Mitsugashira, I.Satoh, M.Hara, Y.Shiokawa, K.Inoue, K.Masumoto, S.Suzuki: "Measurement of Neutron Emission from a SiO_2-D_2 System" J.Radioanal.Nucl.Chem.Letters, 137, 421-429(1989).

M.Yagi、T.Mitsugashira、I.Satoh、M.Hara、Y.Shiokawa、K.Inoue、K.Masumoto、S.Suzuki：“SiO_2-D_2 系统中子发射的测量”J.Radioanal.Nucl。

M.Yagi,Shiokawa,S.Suzuki,M.Hara,K.Masumoto,T.Mitsugashira: "Measurement of Neutron Emission from a Ti-D2 System" J.Radional.Nucl.Chem.Letters. 137. 411-420 (1989)

M.Yagi、Shiokawa、S.Suzuki、M.Hara、K.Masumoto、T.Mitsugashira：“Ti-D2 系统中子发射的测量”J.Radional.Nucl.Chem.Letters。

R.Amano, Y.Shiokawa, M.Yagi: "Micropreparation Technique for Lanthanide and Actinide Compounds by Chemical Vapor Deposition Using beta-diketone Chelates: Preparation of Sulfide" J.Less-Common Metals.

R.Amano、Y.Shiokawa、M.Yagi：“使用 β-二酮螯合物通过化学气相沉积制备镧系元素和锕系化合物的微量制备技术：硫化物的制备”J.Less-Common Metals。

Y.Shiokawa,M.Yagi: "Isotopic Analysis of 243Cm and 244Cm by High Resolution Internal Conversion Electron Spectrometer" J.Radioanal.Nucl.Chem.

Y.Shiokawa、M.Yagi：“通过高分辨率内转换电子能谱仪对 243Cm 和 244Cm 进行同位素分析”J.Radioanal.Nucl.Chem。