Anode Plasma Expansion in Pinch-Reflex Diodes.

Abstract

Anode plasma expansion in pinch reflex diodes is investigated using a one-dimensional magneto-hydrodynamic model. Early in time, the plasma undergoes thermal expansion and its front is slowed down due to jxB. After the current has reached its maximum and for small radius where j and B are larger, jxB may accelerate the bulk of the anode plasma to large velocities. Good qualitative agreement is obtained with the experimental observations of the time dependence of the plasma velocity as well as its radial profile. The maximum expansion velocities reach tens of cm/microsecs.

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Document Details

Document Type
Technical Report
Publication Date
Aug 16, 1983
Accession Number
ADA131083

Entities

People

  • Dennis G. Colombant
  • Shyke A. Goldstein

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Boundaries
  • Current Density
  • Electron Beams
  • Electron Energy
  • Electrons
  • Energy
  • Equations
  • High Temperature
  • Ion Beams
  • Ions
  • Low Density
  • Low Temperature
  • Magnetic Fields
  • Pressure Gradients
  • Pulsed Power
  • Thermal Expansion

Fields of Study

  • Physics

Readers

  • Astronomy/Astrophysics
  • Electrochemical Engineering/ Fuel Cell Technologies
  • Plasma Physics / Magnetohydrodynamics