10 January 2003 Recent results from thin-film-coated semiconductor neutron detectors
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Semiconductor based thermal neutron detectors provide a compact technology for neutron detection and imaging. Such devices can be produced by externally coating semiconductor charged particle detectors with neutron reactive films that convert free neutrons into charged-particle reaction products. Commonly used films for such devices utilize the 10B(n,a)7Li reaction or the 6Li(n,a)3H reaction, which are attractive due to the relatively high energies imparted to the reaction products. Unfortunately, thin film or "foil" type thermal neutron detectors suffer from self-absorption effects that ultimately limit neutron detection efficiency. Design considerations that maximize the efficiency and performance of such devices are discussed. Linear arrays fabricated from thin-film-coated pixel detectors are presented with results.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Douglas S. McGregor, Douglas S. McGregor, Raymond T. Klann, Raymond T. Klann, Jeffrey D. Sanders, Jeffrey D. Sanders, John T. Lindsay, John T. Lindsay, Kurt J. Linden, Kurt J. Linden, Holly K. Gersch, Holly K. Gersch, P. M. De Lurgio, P. M. De Lurgio, Charles L. Fink, Charles L. Fink, Elsa Ariesanti, Elsa Ariesanti, "Recent results from thin-film-coated semiconductor neutron detectors", Proc. SPIE 4784, X-Ray and Gamma-Ray Detectors and Applications IV, (10 January 2003); doi: 10.1117/12.455697; https://doi.org/10.1117/12.455697


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