| Project/Area Number |
09555264
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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 | 展開研究 |
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| Research Field |
工業分析化学
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
KAWAI Jun Kyoto Univ., Associate Professor, 工学研究科, 助教授 (60191996)
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| Co-Investigator(Kenkyū-buntansha) |
NISHINO Makoto Shimadzu Co., Chief Scientist, 分析機器事業部, 主任
ASAKI Zenjiro Kyoto Univ.Professor, 大学院・工学研究科, 教授 (90026005)
GOHSHI Yohichi Natl.Inst.Envir.Stud.Vice Dir., 副所長 (90111468)
HAYAKAWA Shinjiro Univ.of Tokyo, Researcher, 大学院・工学系研究科, 助手 (80222222)
HAYASHI Kouichi Kyoto Univ., Researcher, 大学院・工学研究科, 助手 (20283632)
足立 裕彦 京都大学, 大学院・工学研究科, 教授 (60029105)
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| Project Period (FY) |
1997 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥12,600,000 (Direct Cost: ¥12,600,000)
Fiscal Year 1998: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 1997: ¥9,700,000 (Direct Cost: ¥9,700,000)
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| Keywords | Analytical Chemistry / Crystal Stracture Analysis / Holography / Analytical Informatics / Instrumentation Chemistry / Chemical Informatics |
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| Research Abstract |
Holographic methods provide both intensity and phase information, though diffraction methods, which do not give phase information, have long been used to determine crystal structure. X-Ray fluorescence holography employs two types of experimental techniques, which have successfully provided atomic images : one is called "X-ray fluorescence holography" (XFH), the other is called "multiple-energy X-ray holography" (MEXH). MEXH is the result of the optical reciprocity theorem applied to XFH, and is capable of recording holographic intensities at arbitrary energy, which can suppress the twin-image effect.
We succeeded to measure the angle dependence of the X-ray fluorescence intensity at the Photon Factory.
We also succeeded to obtain an atomic image of zinc (Zn ; 0.02 wt%) doped into gallium arsenide (GaAs), and to determine the Zn site using a thirdgeneration synchrotron-radiation facility, SPring-8, Japan Synchrotron Radiation Research Institute, Nishi-Harima, Hyogo, Japan.
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