PERFORMANCE AND DIAGNOSTIC MEASUREMENTS OF A SUPERSONIC HCl CHEMICAL LASER

Authors
  1. Arnold, S.J.
  2. Foster, K.D.
  3. Snelling, D.R.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
A supersonic purely chemical continuous wave HCl laser is described in which nonequilibrium concentrations of atomic chlorine are generated by the branch-chain reaction of NO with ClO2. The ClO2 is injected into a stream of NO in helium immediately upstream of the throat of a slit nozzle. The reacting gases then expand as a free-jet into a low-pressure region where Hl is added to rapidly form vibrationally excited HCl. The maximum HCl multiline output power of 35 W obtained represents a chemical efficiency of approximates to 4.5% based on the total exothermicity of the pumping reaction and the limiting flow rate of Hl. An efficient technique for visualizing the flow in the expanded region is described. This technique is based on the visible chemiluminescence resulting from the addition of H2S to the NO/ClO2 reaction system.
Report Number
DREV-4139/79 —
Date of publication
15 Jun 1979
Number of Pages
22
DSTKIM No
79-02163
CANDIS No
86511
Format(s):
Originator's fiche received by DSIS;Hardcopy

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