A MOSAIC CRYSTAL BACKSCATTERING MONOCHROMATOR FOR HIGH-RESOLUTION POWDER DIFFRACTION

被引：2
|
作者：
WROBLEWSKI, T
TERNES, W
机构：
[1] Hamburger Synchrotronstrahlungslabor (HASYLAB), Deutsches Elektronensynchrotron (DESY), 2000 Hamburg 52
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 1992年 / 63卷 / 01期
关键词：
D O I：
10.1063/1.1143105
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The resolution function of a powder diffractometer at a synchrotron radiation source increases with increasing Bragg angle of the monochromator. Consequently, a monochromator close to backscattering has been designed and built. Two mosaic crystals of beryllium in nondispersive setting serve as optical elements. They are mounted on goniometer heads inside a tube-like housing which may be evacuated. Fine adjustment of one of the crystals is done with a micro-goniometer driven by a magnetostrictive actuator. The fact that the housing is a tube allows the use of the assembly as part of a multi-purpose monochromator system for powder diffraction.
引用
收藏
页码：1091 / 1093
页数：3
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