Mechanisms of Iodine Dissociation in Chemical Oxygen Iodine Lasers

Abstract

Due to the success in raising the chemical efficiency of our supersonic COIL to a new record (~ 40%), approaching the theoretical limit for this efficiency, we have devoted most of our efforts during the reported period to studying the optimal conditions for lasing and detailed diagnostic study of the O2(1 delta) yield and spatial distributions of the gain and temperature in the resonator. These diagnostic studies are a prerequisite for the measurements of the I2 dissociation fraction which are underway. The following projects have been carried out during the reported period: 1. Measurements of the lasing power for new supersonic nozzles with different injection location along the flow and for different throat heights and achievement of 40% chemical efficiency. 2. Measurements of the gain and temperature for different nozzles with supersonic mixing. 3. Measurements of the O2(1 delta) yield and chlorine utilization in the singlet oxygen generator. 4. Design, manufacturing and testing of a new optical system for measurements of [I2] using 488 nm probe beam from a blue laser.

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Document Details

Document Type
Technical Report
Publication Date
Apr 26, 2005
Accession Number
ADA462954

Entities

People

  • Arje Katz
  • Boris D. Barmashenko
  • Victor Rybalkin
  • Zamik Rosenwaks

Tags

DTIC Thesaurus Topics

  • Chemical Lasers
  • Chemical Oxygen Iodine Lasers
  • Chemical Reactions
  • Dissociation
  • Flow
  • Flow Rate
  • Frequency Combs
  • Gas Flow
  • Laser Applications
  • Laser Beams
  • Laser Diodes
  • Lasers
  • Light Sources
  • Measurement
  • Oxygen
  • Secondary Flow
  • Spatial Distribution

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Combustion science or combustion engineering.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Hypersonics
  • Hypersonics - Hypersonic Flight
  • Hypersonics - Hypersonic Flow