Two dimensional vacancy map measurement by a positron microprobe
Project/Area Number |
21350039
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Analytical chemistry
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Research Institution | Chiba University |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
SUZUKI Ryoichi 産業技術総合研究所, 計測フロンティア研究部門, 副部門長 (80357300)
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Project Period (FY) |
2009 – 2011
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Project Status |
Completed (Fiscal Year 2011)
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Budget Amount *help |
¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2010: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2009: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
|
Keywords | 陽電子 / マイクロビーム / 原子空孔 / 二次元分布 / 塑性変形 / 転位 / 金属 / 腸電子 |
Research Abstract |
Positron probe microanalyzer (PPMA) for two-dimensional defect map has been developed. We have succeeded in extracting the magnetically-guided positron beam from the magnetic field and enhancement of brightness of the positron beam in transmission geometry. The present beam size was estimated to be 14.5 μm. This method has been applied to the study of the deformation-induced defect in pure iron. It has been proven that the vacancy clusters are formed at the fractured points and they can be anticipated using this technique.
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Report
(4 results)
Research Products
(46 results)
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[Presentation] 透過型陽電子顕微鏡における像改質2009
Author(s)
藤浪眞紀, 村谷孝博, 神野智史, 岡壽崇, 松谷幸, 大塚岳史, 井上雅夫, 栗原俊一
Organizer
日本分析化学会第70回分析化学討論会
Place of Presentation
和歌山大学
Year and Date
2009-05-16
Related Report
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