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Condition for magnetic insulation of the electron beam in a rod-pinch diode

Published online by Cambridge University Press:  21 August 2003

A.V. KIRIKOV
Affiliation:
Institute of High Current Electronics, Tomsk, Russia
S.YA. BELOMYTTSEV
Affiliation:
Institute of High Current Electronics, Tomsk, Russia
V.V. RYZHOV
Affiliation:
Institute of High Current Electronics, Tomsk, Russia
I.YU. TURCHANOVSKY
Affiliation:
Institute of High Current Electronics, Tomsk, Russia
V.P. TARAKANOV
Affiliation:
High Energy Density Research Investigation Center, Moscow, Russia

Abstract

A condition for the transition of the electron beam produced in a coaxial rod-pinch diode to the mode of magnetic insulation has been established from the law of conservation of particle and field momentum fluxes. The magnetic field of the external current has been shown to contribute twice as much to magnetic insulation of the beam as the magnetic field of the electron beam self-current. Based on the relations derived, a model has been constructed for magnetic insulation of the electron flow in high-current rod-pinch diodes, which are used for radiography of high speed phenomena. The obtained theoretical results agree well with the results of numerical calculations and with experimental data gained at the Naval Research Laboratory (USA).

Type
Research Article
Copyright
© 2003 Cambridge University Press

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