Position-sensitive detection of slow neutrons: survey of fundamental principles

Roy Kent Crawford

doi:10.1117/12.138661

2 February 1993 Position-sensitive detection of slow neutrons: survey of fundamental principles

Roy Kent Crawford

Proceedings Volume 1737, Neutrons, X Rays, and Gamma Rays: Imaging Detectors, Material Characterization Techniques, and Applications; (1993) https://doi.org/10.1117/12.138661
Event: San Diego '92, 1992, San Diego, CA, United States

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.

Citation Download Citation

Roy Kent Crawford "Position-sensitive detection of slow neutrons: survey of fundamental principles", Proc. SPIE 1737, Neutrons, X Rays, and Gamma Rays: Imaging Detectors, Material Characterization Techniques, and Applications, (2 February 1993); https://doi.org/10.1117/12.138661

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