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Exhaust plume and contamination characteristics of a bipropellant (MMH/N2O4) RCS thruster

Author
Bowman, R. L.
Published
JAN 1, 1973.
Physical Description
1 electronic document
Additional Creators
Jack, J. R. and Spisz, E. W.
Online Version

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Summary
Results are presented for three recent tests in a series of thruster contamination experiments made in liquid helium-cooled environmental facility. The contaminating effects encountered on various materials, surfaces, and components, due to the exhaust products from a 5-pound thrust, bipropellant (MMH/N2O4) thruster are investigated. The angular distribution of plume effects around the periphery of the thruster established by transmittance changes of quartz samples over the wavelength range from 0.2 to 2.0 micrometer is studied, along with mass deposition rates at a specific location measured with a quartz crystal microbalance for three different experiments. Quadrupole mass spectrometer measurements of the exhaust products over the mass number range from 12 to 75; infrared transmittance measurements of contaminated samples for the wavelength range from 2.5 to 15 microns; and infrared transmittance measurements of residue from the thruster nozzle are also considered.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19730012214.
Accession ID: 73N20941.
NASA-TM-X-68212.
JANNAF Plume Technol. Conf.; 3-5 Apr. 1973; Redstone Arsenal, AL; United States.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15749749