Laser Induced Fluorescence of Ground State Hydrogen Atoms in an Arcjet Plume

Abstract

We report two photon laser induced fluorescence measurements near the nozzle exit and in the plume of a 1 kW arcjet thruster. Atomic hydrogen number densities, axial and radial velocities, and translational temperatures are measured in the expansion plume of a 1 kW arcjet operating on hydrogen propellant. Data from recent computational models are compared with the atomic hydrogen density measurements.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1995
Accession Number
ADA438850

Entities

People

  • Ingrid J. Wysong
  • Jeffrey A. Pobst
  • Ronald A. Spores

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Arc Jet Engines
  • Computational Fluid Dynamics
  • Detection
  • Dissociation
  • Dye Lasers
  • Electric Propulsion
  • Ground State
  • Laser Beams
  • Laser Induced Fluorescence
  • Laser Spectroscopy
  • Lasers
  • Liquid Dye Lasers
  • Measurement
  • Propulsion Systems
  • Spectroscopy
  • Temperature Gradients

Fields of Study

  • Physics

Readers

  • Aerospace Propulsion Engineering.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Space
  • Space - Hall-Effect Thruster