Echidna - the new high-resolution powder diffractometer being built at OPAL
Echidna - the new high-resolution powder diffractometer being built at OPAL
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DOI：
10.1016/j.physb.2006.05.322
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发表时间：
2006-11-15
影响因子：
2.8
通讯作者：
Kennedy, Shane
中科院分区：
文献类型：
--
作者：
Liss, Klaus-Dieter;Hunter, Brett;Kennedy, Shane
一个新的粉末衍射仪的目标是高角度，从而高倒易空间，分辨率正在建造的中子束仪器项目在即将到来的澳大利亚中子源OPAL，悉尼附近。样品处的中子通量预计可达10（7）n/cm（2）/s。该仪器由128个位置敏感探测器组成的阵列，每个探测器配备一个30厘米高的索勒准直器，接受度为5弧分，将具有同类仪器中最高的性能之一。除了在粉末衍射中的经典应用外，准二维检测器还将用于快速织构测量，其中需要高度分离的峰。甚至设想单晶倒易空间映射。文章概述了该项目的设计、现状和潜在的研究活动。皇冠版权所有（c）2006年出版的爱思唯尔B. V.保留所有权利。
A new powder diffractometer aiming for high angular, and thus high reciprocal space, resolution is being constructed within the Neutron Beam Instrumentation Project at the upcoming Australian Neutron Source OPAL, near Sydney. The neutron flux at the sample can be expected to be up to 10(7) n/cm(2)/s. With an array of 128 position sensitive detectors, each equipped with a 30 cm high Soller collimator of 5 arc min acceptance this instrument will have one of the highest performances of its kind. In addition to classical applications in powder diffraction, the quasi two-dimensional detector will be used for rapid texture measurements, where high separation of peaks is necessary. Even single crystal reciprocal space mapping is envisaged. The article compiles an overview of the design, status of the project and potential research activities. Crown Copyright (c) 2006 Published by Elsevier B.V. All rights reserved.