A VERSATILE DOUBLE-AXIS MULTICOUNTER NEUTRON POWDER DIFFRACTOMETER

被引：158

作者：

SCHEFER, J ^{[1
]}

FISCHER, P ^{[1
]}

HEER, H ^{[1
]}

ISACSON, A ^{[1
]}

KOCH, M ^{[1
]}

THUT, R ^{[1
]}

机构：

[1] ETH ZURICH,NEUTRON SCATTERING LAB,CH-5232 VILLIGEN PSI,SWITZERLAND

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1990年 / 288卷 / 2-3期

关键词：

D O I：

10.1016/0168-9002(90)90141-R

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The double-axis multicounter diffractometer (DMC) installed at the 10-MW reactor SAPHIR (PSI) has been designed as a good-flux, good-resolution (presently Δd/d ≥ 4×10-3) neutron powder diffractometer. The detector bank is based on a commercial position-sensitive linear BF3 detector which may be automatically and precisely positioned on air cushions (standard epoxy floor). Vertically variable focusing germanium or pyrolythic graphite monochromators are used. Special efforts were made to optimize the sample environment, e.g. by developing an oscillating radial collimator system. Although the monochromator shielding is not yet in a final state, the diffractometer is successfully operating since several years. Design properties and operational experience are discussed. Online data analysis based on LSI and VAX computers is facilitated by user-friendly software. © 1990.

引用

页码：477 / 485

页数：9

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