1989 Fiscal Year Final Research Report Summary
Study for Isotopic Analysis of Plutonium in the Environment by Internal Conversion Electron and alpha-ray Spectrometry
| Project/Area Number |
63580170
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nuclear engineering
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| Research Institution | TOHOKU UNIVERSITY |
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Principal Investigator |
SHIOKAWA Yoshinobu Tohoku University, Institute For Materials Research, Research Associate, 金属材料研究所, 助手 (50111307)
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| Co-Investigator(Kenkyū-buntansha) |
HARA Mitsuo Tohoku University, Institute For Materials Research, Research Associate, 金属材料研究所, 助手 (90005918)
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| Project Period (FY) |
1988 – 1989
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| Keywords | Isotope analysis / Internal Conversion Electron / Alpha ray / Plutonium / Curium / Actinide |
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| Research Abstract |
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.
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