Time Resolved X-ray Diffraction using Parametric X-ray Radiation

使用参数 X 射线辐射的时间分辨 X 射线衍射

• 批准号: 17560046
• 负责人: TAKAHASHI Yumiko
• 金额: $ 2.18万
• 依托单位: Nihon University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17560046/
• 关键词: Parametric X-ray radiation; X-ray diffraction; Imaging; Time resolved measurement; Structure of materials; Soft matter; Accelerator

In the Laboratory for Electron Beam Research and Application (LEBRA) at Nihon University, a parametric X-ray radiation (PXR) generator system was constructed using high-energy electron beams from the 125 MeV electron linear accelerator. For an application to the material science, a new X-ray measurement system using PXR was studied(1) Construction of PXR beam lineA fundamental X-ray diffraction system was assembled on the PXR beam line. Application facilities for Fluorescence X-ray analysis and imaging were also added to the system.(2) Stabilization of PXRStability of the electron beam, optical elements and control devices were investigated. After the improvement, the fluctuation of electron beam has been controlled under 0.05 %. Since the angular instability of goniometer, which was about 1 arcsec/h is not enough for precision measurement, it was changed to the high spec machine. It was clarified that the effect of environment such as the room temperature is not negligible.(3) Time resolved measurementTime resolved measurement became practicable by using the RF signal of accelerator. It is applied to the gate system of CCD as a trigger signal.(4) ApplicationThe structures of macromolecules and biological materials were measured. The applied study using PXR was achieved for the first time in the world.

在日本大学电子束研究与应用实验室（LEBRA）中，使用来自125 MeV电子直线加速器的高能电子束构建了参量X射线辐射（PXR）发生器系统。为了在材料科学中的应用，本文研究了一种新的X射线测量系统，即PXR束线的构建在PXR束线上安装了一个基本的X射线衍射系统。荧光X射线分析和成像的应用设施也被添加到系统中。(2)研究了电子束稳定性、光学元件和控制装置的稳定性。改进后，电子束流的波动已控制在0.05%以下。由于测角仪的角度不稳定性（约为1 arcsec/h）不足以进行精密测量，因此将其更换为高规格机器。阐明了诸如室温的环境影响不可忽略。(3)时间分辨测量利用加速器的射频信号实现了时间分辨测量。它作为触发信号应用于CCD的门控系统。(4)应用大分子和生物材料的结构测量。在国际上首次实现了PXR的应用研究。

项目成果

Heavy fermion like behavior in layered Ce-based oxysulfides

层状 Ce 基硫氧化物中的重费米子行为

• 发表时间: 2006
• 期刊: Journal of Alloys and Compound 408-412
• 作者: Yasushi Hayakawa;Ken Hayakawa;Manabu Inagaki;Takao Kuwada;Akira Mori;Keisuke Nakao;Kyoko Nogami;Toshiro Sakae;Takeshi Sakai;Isamu Sato;Yumiko Takahashi;Toshinari Tanaka;Y.Takanishi;Y.Takano
• 通讯作者: Y.Takano

Application of LEBRA-PXR to the diffraction analysis of minerals

LEBRA-PXR在矿物衍射分析中的应用

• 发表时间: 2003
• 期刊: Journal of Mineralogical and Petrological Sciences 101
• 作者: T.;Sakae;et. al.;Sakae T;H.Nakada;T.Suwa;Y.Tanimoto;中田浩史;中田浩史;T.Sakae;T.Sakae
• 通讯作者: T.Sakae

Phase-contrast Imaging Using the LEBRA-PXR System at Nihon University

日本大学使用 LEBRA-PXR 系统进行相衬成像

• 发表时间: 2006
• 期刊: Proceedings of the 3rd Annual Meeting of Particle Accelerator Society of Japan and the 31st Linear Accelerator Meeting in Japan
• 作者: T.Kuwada;Y.Hayakawa a;K.Nogami;T.Sakai;T.Tanaka;K.Hayakawa;I.Sato;Y.Hayakawa;Toshiro Sakae;Y.Hayakawa
• 通讯作者: Y.Hayakawa

Advanced applications of PXR at LEBRA, Nihon University

日本大学LEBRA的PXR高级应用

• 期刊: Proceedings of the International Conference on Charged and Neutral Particles Channeling Phenomena (印刷中)
• 作者: ATSUO IIDA;YUMIKO TAKAHASHI;YOICHI TAKANISHI;MICHI NAKATA;KEN ISHIKAWA;HIDEO TAKEZOE;佐藤 勇;Y.Hayakawa
• 通讯作者: Y.Hayakawa

Status of the parametric X-ray generator at LEBRA, Nihon University

日本大学LEBRA参数X射线发生器的现状

• 发表时间: 2006
• 期刊: Nuclear Instruments and Methods in Physics Research. B 252
• 作者: Akira Mori et al.;Yasushi Hayakawa et al.;Akira Mori et al.;Yasushi Hayakawa et al.
• 通讯作者: Yasushi Hayakawa et al.