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Atomic fluorescence study of high temperature aerodynamic levitationUltraviolet laser induced atomic fluorescence has been used to characterize supersonic jet aerodynamic levitation experiments. The levitated specimen was a 0.4 cm sapphire sphere that was separately heated at temperatures up to 2327 K by an infrared laser. The supersonic jet expansion and thermal gradients in the specimen wake were studied by measuring spatial variations in the concentration of atomic Hg added to the levitating argon gas stream. Further applications of atomic fluorescence in containerless experiments, such as ideal gas fluorescence thermometry and containerless process control are discussed.
Document ID
19830062038
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Nordine, P. C.
(Yale Univ. New Haven, CT, United States)
Schiffman, R. A.
(Yale University New Haven, CT, United States)
Sethi, D. S.
(Yale University New Haven; Bridgeport University, Bridgeport, CT, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Astronautics (General)
Meeting Information
Meeting: Materials processing in the reduced gravity environment of space; Annual Meeting
Location: Boston, MA
Start Date: November 16, 1981
End Date: November 18, 1981
Sponsors: NASA
Accession Number
83A43256
Funding Number(s)
CONTRACT_GRANT: NAS8-34383
Distribution Limits
Public
Copyright
Other

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