Simultaneous Laser Preionization of Dual Spark Columns in a High Voltage Switch

Abstract

The preliminary investigation of simultaneous laser triggering (lambda = 248 nm) of a spark gap (50 kV, 18 kA, 100 nsec) switch with two parallel preionized columns ( separation 1. 3 mm) is reported. Interferograms of the expanding arc channels are obtained with a laser interferometer having a time and spatial resolution of 5 ns and 10 micro m, respectively. Comparison of the dual spark column voltage and current characteristics are made to those of a single channel spark column.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1985
Accession Number
ADA638715

Entities

People

  • Dennis H. Ford
  • Mark Kushner
  • Stanley R. Byron
  • Wayne D. Kimura

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Conductivity
  • Current Density
  • Dual Channel
  • Electrical Conductivity
  • Electrodes
  • Electron Density
  • Electrons
  • Energy
  • Interferograms
  • Interferometers
  • Laser Beams
  • Lasers
  • Measurement
  • Pulsed Power
  • Spark Gaps
  • Voltage

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Plasma Physics.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy