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Characterization of a 5-eV neutral atomic oxygen beam facilityAn experimental effort to characterize an existing 5-eV neutral atomic oxygen beam facility being developed at Princeton Plasma Physics Laboratory is described. This characterization effort includes atomic oxygen flux and flux distribution measurements using a catalytic probe, energy determination using a commercially designed quadrupole mass spectrometer (QMS), and the exposure of oxygen-sensitive materials in this beam facility. Also, comparisons were drawn between the reaction efficiencies of materials exposed in plasma ashers, and the reaction efficiencies previously estimated from space flight experiments. The results of this study show that the beam facility is capable of producing a directional beam of neutral atomic oxygen atoms with the needed flux and energy to simulate low Earth orbit (LEO) conditions for real time accelerated testing. The flux distribution in this facility is uniform to +/- 6 percent of the peak flux over a beam diameter of 6 cm.
Document ID
19910011423
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Vaughn, J. A. (NASA Marshall Space Flight Center Huntsville, AL., United States)
Linton, R. C. (NASA Marshall Space Flight Center Huntsville, AL., United States)
Carruth, M. R., Jr. (NASA Marshall Space Flight Center Huntsville, AL., United States)
Whitaker, A. F. (NASA Marshall Space Flight Center Huntsville, AL., United States)
Cuthbertson, J. W. (Princeton Univ. NJ., United States)
Langer, W. D. (Princeton Univ. NJ., United States)
Motley, R. W. (Princeton Univ. NJ., United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1991
Publication Information
Publication: NASA, Lyndon B. Johnson Space Center, Fourth Annual Workshop on Space Operations Applications and Research (SOAR 90)
Subject Category
Atomic And Molecular Physics
Accession Number
91N20736
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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