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Title: Plastic fiber scintillator response to fast neutrons

The Neutron Imaging System at NIF uses an array of plastic scintillator fibers in conjunction with a time-gated imaging system to form an image of the neutron emission from the imploded capsule. By gating on neutrons that have scattered from the 14.1 MeV DT energy to lower energy ranges, an image of the dense, cold fuel around the hotspot is also obtained. An unmoderated spallation neutron beamline at the Weapons Neutron Research facility at Los Alamos was used in conjunction with a time-gated imaging system to measure the yield of a scintillating fiber array over several energy bands ranging from 1 to 15 MeV. The results and comparison to simulation are presented.
Authors:
; ; ; ;  [1]
  1. Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (United States)
Publication Date:
OSTI Identifier:
22308957
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CAPSULES; ENERGY LEVELS; FAST NEUTRONS; FIBERS; IMPLOSIONS; LOS ALAMOS; NEUTRON DETECTION; NEUTRON EMISSION; PLASTIC SCINTILLATORS; SPALLATION; US NATIONAL IGNITION FACILITY