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Proceedings Paper

Position-sensitive detection of slow neutrons: survey of fundamental principles
Author(s): Roy Kent Crawford
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Paper Abstract

This paper sets forth the fundamental principles governing the development of position- sensitive detection systems for slow neutrons. Since neutrons are only weakly interacting with most materials, it is not generally practical to detect slow neutrons directly. Therefore all practical slow neutron detection mechanisms depend on the use of nuclear reactions to 'convert' the neutron to one or more charged particles, followed by the subsequent detection of the charged particles. The different conversion reactions which can be used are discussed, along with the relative merits of each. This is followed with a discussion of the various methods of charged particle detection, how these lend themselves to position-sensitive encoding, and the means of position encoding which can be applied in each case. Detector performance characteristics which may be of importance to the end user are discussed and related to these various detection and position-encoding mechanisms.

Paper Details

Date Published: 2 February 1993
PDF: 14 pages
Proc. SPIE 1737, Neutrons, X Rays, and Gamma Rays: Imaging Detectors, Material Characterization Techniques, and Applications, (2 February 1993); doi: 10.1117/12.138661
Show Author Affiliations
Roy Kent Crawford, Argonne National Lab. (United States)


Published in SPIE Proceedings Vol. 1737:
Neutrons, X Rays, and Gamma Rays: Imaging Detectors, Material Characterization Techniques, and Applications
John M. Carpenter; David B. Cline; Richard C. Lanza; David F. R. Mildner, Editor(s)

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