High precision thermal neutron detectors

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Two-dimensional position sensitive detectors are indispensable in neutron diffraction experiments for determination of molecular and crystal structures in biology, solid-state physics and polymer chemistry. Some performance characteristics of these detectors are elementary and obvious, such as the position resolution, number of resolution elements, neutron detection efficiency, counting rate and sensitivity to gamma-ray background. High performance detectors are distinguished by more subtle characteristics such as the stability of the response (efficiency) versus position, stability of the recorded neutron positions, dynamic range, blooming or halo effects. While relatively few of them are needed around the world, these high performance devices are sophisticated ... continued below

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7 p.

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Radeka, V.; Schaknowski, N.A.; Smith, G.C. & and Yu, B. October 1, 1994.

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Description

Two-dimensional position sensitive detectors are indispensable in neutron diffraction experiments for determination of molecular and crystal structures in biology, solid-state physics and polymer chemistry. Some performance characteristics of these detectors are elementary and obvious, such as the position resolution, number of resolution elements, neutron detection efficiency, counting rate and sensitivity to gamma-ray background. High performance detectors are distinguished by more subtle characteristics such as the stability of the response (efficiency) versus position, stability of the recorded neutron positions, dynamic range, blooming or halo effects. While relatively few of them are needed around the world, these high performance devices are sophisticated and fairly complex; their development requires very specialized efforts. In this context, we describe here a program of detector development, based on {sup 3}He filled proportional chambers, which has been underway for some years at Brookhaven. Fundamental approaches and practical considerations are outlined that have resulted in a series of high performance detectors with the best known position resolution, position stability, uniformity of reliability over time of this type.

Physical Description

7 p.

Notes

INIS; OSTI as DE96007709

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  • Neutrons in biology, Santa Fe, NM (United States), 24-28 Oct 1995

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  • Other: DE96007709
  • Report No.: BNL--62601
  • Report No.: CONF-9510226--2
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 212428
  • Archival Resource Key: ark:/67531/metadc666272

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • October 1, 1994

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  • June 29, 2015, 9:42 p.m.

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  • Dec. 1, 2015, 11:34 a.m.

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Radeka, V.; Schaknowski, N.A.; Smith, G.C. & and Yu, B. High precision thermal neutron detectors, article, October 1, 1994; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc666272/: accessed April 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.