Electronic states of materials investigated by alpha decay process
| Project/Area Number |
24654113
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
HAGA Yoshinori 独立行政法人日本原子力研究開発機構, 原子力科学研究部門 先端基礎研究センター, 研究主幹 (90354901)
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| Co-Investigator(Renkei-kenkyūsha) |
TATEIWA Naoyuki 独立行政法人日本原子力研究開発機構, 原子力科学研究部門先端基礎研究センター, 研究主幹 (50346821)
MATSUDA Tatsuma 首都大学東京, 大学院理工学研究科, 准教授 (30370472)
YAMAMOTO Etsuji 独立行政法人日本原子力研究開発機構, 原子力科学研究部門先端基礎研究センター, 研究副主幹 (50343934)
KOURA Hiroyuki 独立行政法人日本原子力研究開発機構, 原子力科学研究部門先端基礎研究センター, 研究副主幹 (50391264)
HOMMA Yoshiya 東北大学, 金属材料研究所, 助教 (00260448)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | アルファ崩壊 / アクチノイド / 電子状態 |
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| Research Abstract |
Although gamma-ray and beta-ray spectroscopy techniques are widely used as a microscopic probe for electronic state investigations, alpha-ray has not been utilized because of the radiation damage or the self-heating effect. In the present study, a technique for the possible alpha-ray spectroscopy is proposed and an apparatus for the alpha-ray detection at low-temperature was developed. The principal idea is to detect anisotropy of alpha-ray emission from the oriented nuclei at low temperature and under magnetic field. For this purpose, (1) a single crystal of actinide material has been prepared, (2) a micro calorimeter working at low temperature under magnetic field was designed and fabricated, and (3) a rotation mechanism was implemented. Using these systems, alpha-particles emitted from the single crystal sample were successfully detected.
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Report
(3 results)
Research Products
(13 results)
