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- W2144557828 abstract "Detectors with microchannel plates (MCPs) are currently widely used in photon and charged particle detection with high spatial (/spl sim/10 /spl mu/m) and temporal (<0.5 ns) resolution. All the advances in MCP detection technologies can be successfully implemented for the detection of thermal neutrons by using MCPs manufactured from a modified glass mixture doped with neutron absorbing atoms. In this paper, we compare the efficiency of thermal neutron detection for two standard MCP geometries: circular-pore and square-pore MCPs doped with the /sup 10/B isotope. The results of our modeling indicate that the detection of thermal neutrons with a square-pore MCP is 11%-23% more efficient than for the circular geometry, and can be higher than 70% for the existing MCP technology. The same MCPs can be used as very efficient and compact thermal neutron collimators. In this paper, we compare the efficiency of circular- and square-pore MCP collimators with the help of our model, the validity of which has already been verified by our experimental measurements reported last year. The rocking curve of 5-mm and 2.5-mm thick MCPs doped with 3 mole % of /sup nat/Gd/sub 2/O/sub 3/ is predicted to be only /spl plusmn/0.1/spl deg/ and /spl plusmn/0.3/spl deg/ wide, respectively, for both geometries. A very compact device with high thermal neutron detection efficiency and angular sensitivity can be built by combining an MCP neutron detector with an MCP collimator." @default.
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- W2144557828 date "2005-10-01" @default.
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- W2144557828 title "The efficiency of thermal neutron detection and collimation with microchannel plates of square and circular geometry" @default.
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- W2144557828 doi "https://doi.org/10.1109/tns.2005.856621" @default.
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