Statistics – Applications
Scientific paper
Jan 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979spie..191..151k&link_type=abstract
In: Multiplex and/or high-throughput spectroscopy; Proceedings of the Seminar, San Diego, Calif., August 27, 28, 1979. (A80-4282
Statistics
Applications
Atmospheric Radiation, Background Radiation, Cryogenics, High Altitude Environments, Infrared Spectroscopy, Thermal Radiation, Design Analysis, Feasibility Analysis, Gas Flow, Molecular Oscillations, Molecular Rotation, Photosensitivity, Spectral Resolution
Scientific paper
The design of the COCHISE facility, a cryogenic apparatus used for laboratory studies of high altitude infrared excitation phenomena, is presented. The basic design concept is the extensive reduction of thermal background radiation through cryogenic (20 K) cooling of the entire reaction volume and detection system. Vibrationally excited molecules (e.g., NO, O3, CO) are formed in a low-pressure (approximately 3 mtorr) environment by interaction of a flowing reactant gas with discharge-produced radical and/or metastable species; the resulting infrared radiation is detected in the absence of interference from relaxation and surface effects. A long-path optical system and cryogenic monochromator permit high sensitivity for vibrationally excited species (about 1 million molecules per cu cm) and excellent spectral resolution (about 2/cm) over the spectral range 2-16 microns. The design and operation of the facility are described in detail. Specific applications of the facility to investigations of infrared atmospheric phenomena are also discussed.
Caledonia George E.
del Greco F. P.
Kennealy John P.
Rawlins Wilson T.
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