New Development of Powder Diffraction

粉末衍射的新进展

• 批准号: 03302059
• 负责人: SAKATA Makoto
• 金额: $ 1.92万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Co-operative Research (A)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03302059/
• 关键词: X-Ray Powder Diffraction; Neutron Powder Diffraction; Rietveld Method; Maximum Entropy Method; Synchrotron Radiation; Pattern Decomposition; Crystal Structure Analysis; High Tc Super Conductor; プロファイル・フィティング法; マキシマム・エントロピー法; 粉末回折法; リ-トヴェルト法; パ

This research project was performed by two research meeting held in each year. Over all, 34 lectures were given. As new methods to analyze powder diffraction data, the results of Rietveld method of some high Tc super conductors were given. Furthermore, the Powder Pattern Decomposition, Maximum Entropy Method were applied to some simple materials. Various experimental techniques are also introduced, such as X-ray Diffraction by Laboratory X-ray source, Synchrotron radiation, Neutron powder diffraction by either a reactor or a pulse source. Through many experimental results it was shown that modern powder diffraction is a very powerful tool for a structural study of materials.

该研究项目每年举行两次研究会议。共举办了34场讲座。作为分析粉末衍射数据的新方法，给出了Rietveld方法对某些高温超导体的分析结果。并将粉末模式分解法、最大熵法应用于简单材料。还介绍了各种实验技术，如实验室X射线源的X射线衍射，同步辐射，反应堆或脉冲源的中子粉末衍射。大量的实验结果表明，现代粉末衍射是研究材料结构的有力工具。

项目成果

K.Yukino: "Scanning X-Ray Diffract-Microscope/ X-Ray Powder Diffractometer Using Converged X-Ray Beam." Advances in X-Ray Analysis. 35. 1275-1283 (1992)

K.Yukino：“使用会聚 X 射线束的扫描 X 射线衍射显微镜/X 射线粉末衍射仪。”

F.Izumi: "Structural Studies of High-Tc Super-conductors by Neutron Powder Diffraction" Physica C. 190. 35-38 (1991)

F.Izumi：“通过中子粉末衍射进行高温超导体的结构研究”Physica C. 190. 35-38 (1991)

R.Uno: "Electron Distribution in Sone Zincblende-type Crystals." Z.Naturforsch.48. (1993)

R.Uno：“Sone 闪锌矿型晶体中的电子分布。”

H.Toraya: "Accurate Determination of Unit-Cell Parameters Using Conventional X-Ray Powder Diffractometry" Advances in X-Ray Analysis,. 35. 431-438 (1992)

H.Toraya：“使用传统 X 射线粉末衍射法准确测定晶胞参数”X 射线分析进展。

M.Sakata: "Electron Density in Rutile(Ti0_2) by the Maximum Entropy Method." Acta Cryst.B48. 591-598 (1992)

M.Sakata：“通过最大熵法测定金红石 (Ti0_2) 中的电子密度。”