A UHV-COMPATIBLE FIXED-EXIT 2/4 CRYSTAL MONOCHROMATOR

被引：3

作者：

KIRKLAND, JP ^{[1
]}

机构：

[1] USN,RES LAB,CONDENSED MATTER PHYS BRANCH,WASHINGTON,DC 20375

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1990年 / 291卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(90)90057-D

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Simplicity, symmetric design, variable energy range, and support for both sides of the crystals are features of a new fixed-exit crystal monochromator that we have designed, built and tested. It is less complex; therefore it is less expensive to build, easier to understand, and easier to maintain. All high-precision ground surfaces have been replaced with precision shafting; all ball and roller bearings in the system have been replaced with ultrahigh-vacuum-compatible bushings. Exclusive of the crystal holder, the vacuum chamber, and the drive mechanism, the monochromator consists of only six basic parts as compared to over a hundred parts in other designs. The system is highly symmetric, with no preferred orientation for entrance and exit beams. The same parts are used in both the two-crystal and four-crystal versions. Angular ranges for the system (and therefore energy ranges) are easily varied. © 1990.

引用

页码：185 / 191

页数：7

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