A compact optical design for Bragg reflections near backscattering

被引：16

作者：

Baron, AQR

Tanaka, Y

Ishikawa, D

Miwa, D

Yabashi, M

Ishikawa, T

机构：

[1] JASRI, SPring 8, Mikazuki, Hyogo 6795198, Japan

[2] RIKEN, SPring 8, Mikazuki, Hyogo 6795148, Japan

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2001年 / 8卷

关键词：

X-ray optics; high-resolution monochromators; nuclear resonant scattering; inelastic X-ray scattering;

D O I：

10.1107/S0909049501010901

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A very compact in-line X-ray optical design is presented which is optimized for use with Bragg reflections close to backscattering (Bragg angles near 90 degrees). The essential idea is to use a low-order Bragg reflection to couple the X-ray beam into a small channel-cut backscattering crystal. The design is demonstrated in an almost theoretically performing high-resolution monochromator providing 2 x 10(8) photons s(-1) in a 0.52 meV bandwidth at 25.65 keV. The monochromator is used to measure inelastic nuclear scattering from phonons in Dy-161-containing samples.

引用

收藏

页码：1127 / 1130

页数：4

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