注意：一台采用非对称放置的一维探测器、散射角范围达72°的X射线粉末衍射仪。

Note: An X-ray powder diffractometer with a wide scattering-angle range of 72° using asymmetrically positioned one-dimensional detectors.

作者信息

Katsuya Yoshio, Song Chulho, Tanaka Masahiko, Ito Kimihiko, Kubo Yoshimi, Sakata Osami

机构信息

Synchrotron X-ray Station at SPring-8, National Institute for Materials Science (NIMS), 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan.

Global Research Center for Environment and Energy based Nanomaterials Science (GREEN), Lithium Air Battery Specially Promoted Research Team, NIMS, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.

出版信息

Rev Sci Instrum. 2016 Jan;87(1):016106. doi: 10.1063/1.4940986.

DOI:10.1063/1.4940986

PMID:26827367

Abstract

An X-ray powder diffractometer has been developed for a time-resolved measurement without the requirement of a scattering angle (2θ) scan. Six one-dimensional detector modules are asymmetrically arranged in a vertical line at a designed distance of 286.5 mm. A detector module actually covers a diffraction angle of about 12° with an angular resolution of 0.01°. A diffracted intensity pattern is simultaneously recorded in a 2θ angular range from 1.63° to 74.37° in a "one shot" measurement. We tested the performance of the diffractometer with reference CeO2 powders and demonstrated diffraction measurements from an operating lithium-air battery.

摘要

已开发出一种无需散射角（2θ）扫描即可进行时间分辨测量的X射线粉末衍射仪。六个一维探测器模块在垂直线上不对称排列，设计距离为286.5毫米。一个探测器模块实际覆盖约12°的衍射角，角分辨率为0.01°。在一次“单次”测量中，可在1.63°至74.37°的2θ角范围内同时记录衍射强度图案。我们用参考CeO2粉末测试了衍射仪的性能，并展示了对运行中的锂空气电池的衍射测量。