2013 Fiscal Year Final Research Report
Developments of laboratory-use high-accuracy X-ray spectrometer for measuring X-ray Raman scattering
| Project/Area Number |
23350036
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Analytical chemistry
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| Research Institution | Japan Women's University |
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Principal Investigator |
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | Ｘ線ラマン散乱 / 蛍光Ｘ線の化学効果 / 高分解能分光 / XAFS / Ｘ線分析 / 化学状態分析 / コアロス |
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| Research Abstract |
We tried to develop a high-performance X-ray spectrometer that enables us to measure X-ray Raman scattering spectra in laboratory. A prototype spectrometer was constructed, investigated, and updated over three years. In the tuning process, a solid state detector was introduced, making it possible to measure X-ray emission spectra both in wavelength-dispersion mode and energy-dispersion mode. The achieved energy resolution was markedly high, i.e., < 0.5 eV. In spite of these interesting properties of the spectrometer, it is still difficult to elucidate X-ray absorption fine structures from the measured X-ray Raman scattering spectra, mainly because of fairly low reflectivity of the analyzing crystals employed. Such difficulties forced us to apply the prototype spectrometer to the studies of other weak X-ray emission spectra. As a result, new chemical effects of L emissions of Sm and Yb were found.
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[Journal Article] ランタン近傍元素(I, Cs, Ba, La,Ce, Pr, Nd)のL・スペクトル,X2012
Author(s)
林久史, 金井典子,竹原由貴, 大平香奈,山下結里
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Journal Title
X 線分析の進歩
Volume: 43巻
Pages: 249-266
Peer Reviewed
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