Geometry compensation for improving speed and efficiency of scintillator‐based neutron time‐of‐flight detectors
作者： R. A. Lerche , T. J. Murphy
DOI: 10.1063/1.1143538
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摘要: Scintillator‐based neutron detectors record time‐of‐flight (TOF) information used for estimating inertial‐confinement‐fusion plasma temperatures. Nova TOF detectors, which have 1.3 ns resolution and contain 30 cm3 of scintillator, lack the combination temporal sensitivity necessary to measure 1 keV temperatures deuterium plasmas emitting fewer than 1.5×109 neutrons. Significant time dispersion is caused by detection‐point uncertainty in thick scintillators. We describe a geometrical compensation technique this can be substantially reduced while retaining large scintillator volume. estimate that scintillator/streak camera achieve 100 ps 2.45 MeV neutrons, scintillator/photomultiplier systems 150–300 resolution.
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