Directional fast neutron detector using scintillating fibers and electro-optics

Details Directional fast neutron detector using scintillating fibers and electro-optics Directional fast neutron detector using scintillating fibers and electro-optics

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1737...14h&link_type=abstract

Proc. SPIE Vol. 1737, p. 14-19, Neutrons, X Rays, and Gamma Rays: Imaging Detectors, Material Characterization Techniques, and A

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A scaled version of a scintillating fiber detector (SFD) has been constructed and tested in a feasibility study at SAIC-San Diego for determining its neutron detection efficiency, directionality and gamma-ray sensitivity. This concept was supported by Monte Carlo simulations which predicted the effectiveness of the fiber bundle to discriminate against neutrons entering at directions non-parallel to the fiber axis. Fibers measuring 0.5 mm square and 10 cm long are formed into a bundle and coupled to a set of gamma-ray insensitive electro-optics intensifiers and a CCD camera. In this paper we describe the detector and present the results of the experimental tests with 14 MeV neutrons and an intense beam of (superscript 60)Co and (superscript 137)Cs gamma-rays.

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