| Project/Area Number |
16K13816
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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 |
Condensed matter physics I
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
Shirasawa Tetsuro 国立研究開発法人産業技術総合研究所, 物質計測標準研究部門, 主任研究員 (80451889)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKAHASHI Toshio 東京学芸大学, 教育学部, 研究員 (20107395)
MATSUSHITA Tadashi 大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 名誉教授 (40092332)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | X線散乱 / 逆空間マッピング / 薄膜 / ナノ構造 / Ｘ線散乱 / ナノ材料 / Ｘ線 / 表面・界面物性 |
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| Outline of Final Research Achievements |
A high-speed method for three-dimensional x-ray reciprocal space mapping was developed. An iterative reconstruction method was developed, which is capable of constructing a three-dimensional reciprocal space map from a series of two-dimensional diffuse scattering pattern recorded by using the wavelength-dispersive diffractometry. To obtain a high-resolution reciprocal space map, we reduced the focus size of the wavelength-dipersive x-rays by optimizing the curvature of the curved crystal polychromator. We succeeded in constructing a three-dimensional reciprocal space map at least two times as fast as the state-of-the-art high-speed method which used a monochromatic x-rays and position-sensitive two-dimensional detector. It is indicated that an improvement of the iterative reconstruction algorism can make the developed method further faster.
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