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Title: Magnetically insulated diode for generating pulsed neutron and gamma ray emissions

Abstract

A magnetically insulated diode employs a permanent magnet to generate a magnetic insulating field between a spaced anode and cathode in a vacuum. An ion source is provided in the vicinity of the anode and used to liberate ions for acceleration toward the cathode. The ions are virtually unaffected by the magnetic field and are accelerated into a target for generating a nuclear reaction. The ions and target material may be selected to generate either neutrons or gamma ray emissions from the reaction of the accelerated ions and the target. In another aspect of the invention, a field coil is employed as part of one of the electrodes. A plasma prefill is provided between the electrodes prior to the application of a pulsating potential to one of the electrodes. The field coil multiplies the applied voltage for high diode voltage applications. The diode may be used to generate a /sup 7/Li(p,..gamma..)/sup 8/Be reaction to produce 16.5 MeV gamma emission.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (USA)
OSTI Identifier:
5737950
Application Number:
ON: DE85011658
Assignee:
Dept. of Energy SNL; EDB-85-083524
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; DIODE TUBES; MAGNETIC INSULATION; GAMMA SOURCES; NEUTRON SOURCES; ION SOURCES; PERMANENT MAGNETS; PLASMA; ELECTRON TUBES; MAGNETS; PARTICLE SOURCES; RADIATION SOURCES; 070201* - Radiation Sources- Design, Fabrication & Operation

Citation Formats

Kuswa, G.W., and Leeper, R.J. Magnetically insulated diode for generating pulsed neutron and gamma ray emissions. United States: N. p., 1984. Web.
Kuswa, G.W., & Leeper, R.J. Magnetically insulated diode for generating pulsed neutron and gamma ray emissions. United States.
Kuswa, G.W., and Leeper, R.J. Thu . "Magnetically insulated diode for generating pulsed neutron and gamma ray emissions". United States.
@article{osti_5737950,
title = {Magnetically insulated diode for generating pulsed neutron and gamma ray emissions},
author = {Kuswa, G.W. and Leeper, R.J.},
abstractNote = {A magnetically insulated diode employs a permanent magnet to generate a magnetic insulating field between a spaced anode and cathode in a vacuum. An ion source is provided in the vicinity of the anode and used to liberate ions for acceleration toward the cathode. The ions are virtually unaffected by the magnetic field and are accelerated into a target for generating a nuclear reaction. The ions and target material may be selected to generate either neutrons or gamma ray emissions from the reaction of the accelerated ions and the target. In another aspect of the invention, a field coil is employed as part of one of the electrodes. A plasma prefill is provided between the electrodes prior to the application of a pulsating potential to one of the electrodes. The field coil multiplies the applied voltage for high diode voltage applications. The diode may be used to generate a /sup 7/Li(p,..gamma..)/sup 8/Be reaction to produce 16.5 MeV gamma emission.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {8}
}