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Proceedings Paper

Material characterization using neutron sources
Author(s): Stanley Schneider; Theodore Denis Fay
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Paper Abstract

A general systematic method to characterize the material composition of an object to be interrogated is posed and discussed. It employs neutrons to provide for the excitation of the nuclear isomer states of the isotopes constituting the body. Observation of the characteristic energies of the gamma rays emitted during the prompt relaxation identifies the isotope species. The intensity of the gamma rays together with neutron cross section data allows for the determination of species abundance. Measurements using multiple detectors that are spatially offset allows for the generation of images of the body composition isotope by isotope. This isomer excitation technique enables isotope identification for species of Z >= 3. Observation of neutron capture (gamma) emission supplements the method for hydrogen and helium-3. Several applications of the technique are described.

Paper Details

Date Published: 2 February 1993
PDF: 8 pages
Proc. SPIE 1737, Neutrons, X Rays, and Gamma Rays: Imaging Detectors, Material Characterization Techniques, and Applications, (2 February 1993); doi: 10.1117/12.138658
Show Author Affiliations
Stanley Schneider, McDonnell Douglas Space Systems Co. (United States)
Theodore Denis Fay, McDonnell Douglas Space Systems Co. (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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