Evolution of Electron Properties After Nanosecond, Repetitively Pulsed Discharges in Air Measured by Thomson Scattering

Abstract

This work was an investigation of nanosecond repetitively pulsed discharges in air by measuring the evolution of electron density and electron temperature between pulses using Thomson scattering of laser light. Bursts of repetitive pulses within several microseconds after the initial pulse were found to exhibit a coupling effect and create an even higher electron density than the initial pulse. The wide range of temperatures and densities of the electrons existing between pulses allow an opportunity to explore both the collective and non-collective regimes of Thomson scattering. By measuring electron density and temperature at a variety of times, an accurate description of the coupling between discharges can been formulated which provides insight into the behavior and potential applications of nanosecond repetitive pulse discharges.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2020
Accession Number
AD1147589

Entities

People

  • Chase Murray
  • Jared Miles
  • Steven Adams

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Charged Particles
  • Detection
  • Diffraction
  • Dispersing
  • Doppler Effect
  • Elastic Scattering
  • Electromagnetic Radiation
  • Electromagnetic Scattering
  • Electron Density
  • Electrons
  • Energy
  • Energy Transfer
  • Glow Discharges
  • Measurement
  • Pulsed Power
  • Repetition Rate
  • Scattering
  • Spectra
  • Thomson Scattering
  • Voltage

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Space/Atmospheric Physics.
  • Theoretical Analysis.

Technology Areas

  • Directed Energy
  • Microelectronics