2010 Fiscal Year Final Research Report
Stability evaluation of point defect clusters to estimate microstructural change during irradiation
| Project/Area Number |
20560622
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical properties of metals
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
JITSUKAWA Shiro Japan Atomic Energy Agency, 原子力基礎工学研究部門, 研究主席 (80354835)
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| Co-Investigator(Renkei-kenkyūsha) |
OKUBO Nariaki 独)日本原子力研究開発機構, 研究員 (60391330)
ABE Yosuke 独)日本原子力研究開発機構, 研究員 (50400403)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 格子欠陥 / 電子顕微鏡 / 照射損傷 / 点欠陥クラスター / 微細組織 |
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| Research Abstract |
Capture radius of interstitial loops for point defect clusters have been evaluated by in situ ion-irradiation experiment and model calculation. Relatively large capture radius for clusters was obtained. Also, the minimum size for dislocation loop exhibiting strain field has been detected, The value is of about 1nm. By using minimum size of interstitial loops and using capture radius for clusters fate and the stability of point defect clusters has been evaluated. The results are useful to control irradiation damage.
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