Upgrade of the wide-angle neutron diffractometer at the high flux isotope reactor

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Description

The Wide-Angle Neutron Diffractometer (WAND) is a flat-cone geometry diffractometer located at the High Flux Reactor (HFIR). This instrument is currently being upgraded. The central part of this upgrade is the development of a new curved one-dimensional position sensitive detector which covers a 125 degree angular range with an effective radius of 71 cm. This detector will be a multi-anode (624 anodes on a 0.2 degree pitch) {sup 3}He gas-filled proportional counter. This totally new system will give high resolution, good uniformity and high counting range - a maximum capability of 10{sup 5} cps/pixel and a 10{sup 7} cps overall. ... continued below

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8 p.

Creation Information

Katano, S.; Morii, Y. & Child, H.R. July 15, 1997.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

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  • Katano, S.
  • Morii, Y. Japan Atomic Energy Research Institute, Ibaraki (Japan). Advanced Science Research Center
  • Child, H.R. Oak Ridge National Lab., TN (United States)

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Description

The Wide-Angle Neutron Diffractometer (WAND) is a flat-cone geometry diffractometer located at the High Flux Reactor (HFIR). This instrument is currently being upgraded. The central part of this upgrade is the development of a new curved one-dimensional position sensitive detector which covers a 125 degree angular range with an effective radius of 71 cm. This detector will be a multi-anode (624 anodes on a 0.2 degree pitch) {sup 3}He gas-filled proportional counter. This totally new system will give high resolution, good uniformity and high counting range - a maximum capability of 10{sup 5} cps/pixel and a 10{sup 7} cps overall. A prototype of this detector has shown that these design targets can be met. The new WAND will greatly broaden its capabilities for single-crystal diffraction experiments and for time-resolved measurements.

Physical Description

8 p.

Notes

OSTI as DE97008554

Source

  • International conference on neutron scattering (ICNS), Toronto (Canada), 17-21 Aug 1997

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  • Other: DE97008554
  • Report No.: CONF-970814--8
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 532652
  • Archival Resource Key: ark:/67531/metadc689793

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Creation Date

  • July 15, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Aug. 4, 2016, 7:23 p.m.

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Katano, S.; Morii, Y. & Child, H.R. Upgrade of the wide-angle neutron diffractometer at the high flux isotope reactor, article, July 15, 1997; Tennessee. (digital.library.unt.edu/ark:/67531/metadc689793/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.