Accession Number : AD0435602


Title :   WAVELENGTH ANALYSIS OF FLUORESCENCE FROM GASES EXCITED BY VACUUM ULTRAVIOLET RADIATION,


Corporate Author : UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES


Personal Author(s) : Judge,D L ; Morse,A L ; Weissler,G L


Report Date : 01 Aug 1963


Pagination or Media Count : 26


Abstract : A wavelength analysis and pressure dependence of the visible fluorescence of several gases will be presented. The excitation energy required to obtain fluorescence is discussed and estimates of the fluorescence efficiency. Excitation of the gases was obtained by allowing dispersed radiation from a condensed spark in air at 100 microns to enter a chamber containing the gas to be investigated. The source radiation consisted of a line spectrum from which photon energies between 12 and 24 ev were selected. With various of these source lines incident on the gas of interest, the wavelength analysis of the fluorescent radiation was obtained using a Tropel monochromator having a bandwidth of 100 Angstrom units. The low resolution of the Tropel was required in order to pass a detectable light flux through the instrument. These results represent an extension of those reported earlier. (Author)


Descriptors :   FLUORESCENCE , GASES , VACUUM , ULTRAVIOLET RADIATION , PRESSURE , EXCITATION , ENERGY , INSTRUMENTATION , SPARKS , AIR , LINE SPECTRA , PHOTONS , MONOCHROMATIC LIGHT


Distribution Statement : APPROVED FOR PUBLIC RELEASE