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Title: Compact deuterium-tritium neutron generator using a novel field ionization source

Active interrogation using neutrons is an effective method for detecting shielded nuclear material. A lightweight, lunch-box-sized, battery-operated neutron source would enable new concepts of operation in the field. We have developed at-scale components for a highly portable, completely self-contained, pulsed Deuterium-Tritium (DT) neutron source producing 14 MeV neutrons with average yields of 10{sup 7} n/s. A gated, field ionization ion source using etched electrodes has been developed that produces pulsed ion currents up to 500 nA. A compact Cockcroft-Walton high voltage source is used to accelerate deuterons into a metal hydride target for neutron production. The results of full scale DT tests using the field ionization source are presented.
Authors:
; ; ;  [1] ;  [2]
  1. Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550 (United States)
  2. Department of Computer Science, Stanford University, Stanford, California 94305 (United States)
Publication Date:
OSTI Identifier:
22402648
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 116; Journal Issue: 19; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CURRENTS; DEUTERIUM; DEUTERONS; ELECTRIC POTENTIAL; ELECTRODES; HYDRIDES; ION SOURCES; IONIZATION; IONS; MEV RANGE 10-100; NEUTRON GENERATORS; NEUTRONS; OPERATION; PULSES; TRITIUM; YIELDS