DTIC ADA264602: Observation of OH Radicals in a Filament-Assisted Diamond Growth Environment

5 Pages·0.35 MB·English

by  Defense Technical Information Center

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AD-A264 602
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EPORT 3. REPOR TYPE. AND DATES COVERED
4. TITLE AND SUBTITLE 5. CUNDING NUMBERS
"Observation of OH Radicals in a Filament-Assisted Diamond
Growth Environment" in Diamond Materials. Ed. A. J. Purdes, DAAL03-89-K-0157
The Els(cid:127)trochemical Society, p. 202, (1991).
6. AUTHOR(S)
Jlrich E. Meier, Lukas E. Hunziker, David R. Crosley, and
Jay B. Jeffries
7. PERFORMING ORGANIZATION NAME(S) AND AODRESS(ES)L I 8 PERFORMING ORGANIZATION
Molecular Physics Laboratory - REPORT NUMBER
SRI International
333 Ravenswood Avenue
o 1993
Menlo Park, California 94025
9- SPONSORING/MONITORING AGENCY NAME(S) AND EbU SS i SPONSORING/MONITORING
U. S. Army Research Office AGENCY REPORT NUMBER
P. 0. Box 12211
7
Research Triangle Park, NC 27709-2211 2 -q'j (cid:127)
11. SUPPLEMENTARY NOTES
The view, opinions and/or findings contained in this report atr those of the
author(s) and should not be construed as an official Department of the Army position,
policy, or decision, unless so designated by other documentation.
12s. DISTRIBUTION/AVAILABIUTY STATEMENT 12b. DISTRIBUTION CODE
Approved for public release; distribution unlimited.
13. ABSTRACT (Maximum 200 words)
The first observations of the hydroxyl radical in a hot filament assisted diamond
growth environment are presented. Laser-induced fluorescence (LIF) is used to make
in suti, nonintrusive, measurements of the spatial distribution of OH concentration
near the filament as a function of feedstock composition, reactor pressure, and
filament temperature. LIF measurements of the OH rotational level population
distribution are used to determine spatially resolved gas temperature.
93-09817
14. SUBJECT TERMS 15. NUMBER OF PAGES
Optical Diagnostics, Laser-Induced Fluorescence Process Control
16. PRICE CODE
17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATION 19, SECURITY CLASSIFICATION 20. LIMITATION OF
OF REPORT OF THIS PAGE OF ABSTRACT ABSTRACT
Unclassified Unclassified Unclassified UL
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