Innovative analysis method for plutonium isotopes with utilizing the alpha-ray spectroscopy and the intensity ratio of L X-ray emission.
| Project/Area Number |
24360397
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
Mahatma Keisuke 九州大学, 工学(系)研究科(研究院), 准教授 (30190317)
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| Co-Investigator(Kenkyū-buntansha) |
TAKASAKI Koji 国立研究開発法人日本原子力研究開発機構, 大洗研究開発センター安全管理部, 次長 (00446444)
MITSUDA Kazuhisa 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 教授 (80183961)
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| Co-Investigator(Renkei-kenkyūsha) |
IYOMOTO Naoko 九州大学, 大学院工学研究院, 准教授 (40508173)
SHIGYO Nobuhiro 九州大学, 大学院工学研究院, 助教 (40304836)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2015: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2012: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
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| Keywords | マイクロカロリーメータ / 超伝導転移端センサー / プルトニウム同位体分析 / L X線スペクトル計測 / 高エネルギー分解能 / α線スペクトル計測 / マイクロカロリメータ / LX線スペクトル計測 / 超伝導相転移端センサー / 原子力計測・放射線物理 / 放射線工学・ビーム科学 |
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| Outline of Final Research Achievements |
We proposed a new method of analyzing Pu isotopes with using the energy spectrum alpha-rays and the intensity ratio of L X-rays. It is required to obtain high-reliable data of the emission probability of L X-rays in α decay of Pu isotopes and Am-241. Spectroscopic measurements of L X-rays emitted from a mixture source of Pu-238/239 and Am-241 were conducted with TES microcalorimeters which were developed in this work. The value of full-width at half maximum energy resolution was found to be better than 50 eV at peaks appear in experimental energy spectrum of L X-rays. Main peaks of L X-rays were clearly identified in the experimental energy spectrum. High-reliable data of the emission probability of L X-rays in α decay of Pu isotopes and Am-241 are expected to be obtained by precise analysis of the experimental energy spectrum.
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Report
(5 results)
Research Products
(20 results)
