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Proceedings Paper

Large-area high-resolution thermal neutron imaging detectors
Author(s): Amos Breskin; Rachel Chechik; A. Gibrekhterman; A. Akkerman; Volker Dangendorf; Angela Brauning-Demian
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Paper Abstract

We have developed a high resolution thermal neutron imaging detector, combining a composite solid neutron convertor and a low-pressure gaseous avalanche electron multiplier. Neutron-induced charged particles from a primary convertor element induce multiple low- energy secondary electrons from a second electron-emissive film. These are multiplied in the gas upon their emission. A localization resolution of the order of 0.5 mm (FWHM) was measured with detectors equipped with Gd and Li convertors coated with thin CsI films. These detectors are characterized by good imaging properties (also in divergent neutron beams), fast time resolution, low sensitivity to gamma background, and the capability of operating at very high neutron flux. Possible applications are discussed.

Paper Details

Date Published: 3 March 1995
PDF: 6 pages
Proc. SPIE 2339, International Conference on Neutrons and Their Applications, (3 March 1995); doi: 10.1117/12.204170
Show Author Affiliations
Amos Breskin, Weizmann Institute of Science (Israel)
Rachel Chechik, Weizmann Institute of Science (Israel)
A. Gibrekhterman, Weizmann Institute of Science (Israel)
A. Akkerman, Weizmann Institute of Science and Soreq NRC (Israel)
Volker Dangendorf, Physikalisch-Technische Bundesanstalt Braunschweig (Germany)
Angela Brauning-Demian, Physikalisch-Technische Bundesanstalt Braunschweig (Germany)

Published in SPIE Proceedings Vol. 2339:
International Conference on Neutrons and Their Applications
George Vourvopoulos; Themis Paradellis, Editor(s)

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