MACS low-background doubly focusing neutron monochromator

被引：6

作者：

Smee, SA ^{[1
]}

Orndorff, JD

Scharfstein, GA

Qiu, Y

Brand, PC

Broholm, CL

Anand, DK

机构：

[1] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA

[2] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

[3] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[4] Oak Ridge Natl Lab, Spallat Neutron Source, Oak Ridge, TN 37830 USA

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2002年 / 74卷 / Suppl 1期

关键词：

PACS: 61.12.Ex;

D O I：

10.1007/s003390201658

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel doubly focusing neutron monochromator has been developed as part of the Multi-Analyzer Crystal Spectrometer (MACS) at the NIST Center for Neutron Research. The instrument utilizes a unique vertical focusing element that enables active vertical and horizontal focusing with a large, 357-crystal (1428 cm(2)), array. The design significantly reduces the amount of structural material in the beam path as compared to similar instruments. Optical measurements verify the excellent focal performance of the device. Analytical and Monte Carlo simulations predict that, when mounted at the NIST cold-neutron source, the device should produce a monochromatic beam (DeltaE = 0.2 meV) with flux phi > 108 n/cm(2) S.

引用

页码：S255 / S257

页数：3

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*RIS NAT LAB, MCSTAS VERS 1 4

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Barry, DD ;

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NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 466 (03) :513-526

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