Geometrically optimized fast neutron detector

Details Geometrically optimized fast neutron detector Geometrically optimized fast neutron detector

G - Physics

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G01T 1/20 (2006.01) G01T 1/202 (2006.01) G01T 1/208 (2006.01) G01T 3/06 (2006.01) G01V 5/10 (2006.01) G01N 23/00 (2006.01)

Patent

CA 2722199

An improved fast neutron detector fabricated with alternating layers or hydrogenous, optically transparent, non scintillating material and scintillating material Fast neutrons interact with the hydrogenous material generating recoil protons. The recoil protons enter the scintillating material resulting in scintillations. The detector is optically coupled to a photomultiplier tube which generates electrical pulses proportional in amplitude to the intensity of the scintillations, and therefore are an indication of the energy of the fast neutrons impinging upon the detector. Alternating layers of materials are dimensioned to optimize total efficiency of the detector, or to optimize the spectroscopy efficiency of the detector. The scintillating material is preferably ZnS, and the hydrogenous material is preferably plastic. The detector is ideally suited for well logging applications and fast neutron monitor applications.

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