| Project/Area Number |
25600145
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Quantum beam science
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
AKITA Koichi 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 量子ビーム応用研究センター, リーダー (10231820)
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| Co-Investigator(Kenkyū-buntansha) |
HARJO Stefanus 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 J-PARCセンター, 研究主幹 (40391263)
ITO Takayoshi 一般財団法人総合科学研究機構, 利用研究促進部, 研究員 (00537342)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 応力 / 疲労 / パルス中性子 / 中性子回折 / その場測定 / 応力測定 / 疲労破壊 / 実働応力 |
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| Outline of Final Research Achievements |
An in-situ neutron stress measurement system has been developed at the neutron engineering diffractometer TAKUMI in the Materials and Life Science Experimental Facility (MLF) of J-PARC. The system can record experiment parameters, such as load, strain and temperature, as an event with a synchronized time tag along a same timeline for a neutron detection event by using a DAQ-Middleware and a TrigNET, which is a universal signal readout module. In-situ neutron diffraction measurements during fatigue loading have been performed using the system at TAKUMI to demonstrate its advantages. As a consequence, diffraction peak shifts which correspond to the fatigue load have been successfully recorded, and therefore the effectiveness of the system has been confirmed.
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