Accession Number : AD0630017

Title :   UPPER LIMITS FOR CHEMILUMINESCENCE FROM SINGLE COLLISIONS OF 03 WITH NO, CO, H2S, AND CS2,

Corporate Author : BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH GEO-ASTRO PHYSICS LAB

Personal Author(s) : Harrison,Halstead ; scattergood,D. M.

Report Date : JAN 1966

Pagination or Media Count : 26

Abstract : Double modulated, crossed molecular beam experiments were performed which permit upper limits to be set for the production of light from single, thermal energy collisions of ozone with nitric oxide, carbon monoxide, hydrogen sulphide, and carbon disulphide. Minimum detectable signals were limited by background light levels from a temperature sensitive surface reaction involving ozone. With the apparatus walls cooled by liquid nitrogen, this reaction still generated a partially single-modulated detector noise whose dc count rate was 100/sec. Beam densities were determined with an electron-ionization stagnation detector, operated at 20 cps, and photomultiplier luminous efficiency was measured by comparison with a standard lamp. (Author)

Descriptors :   (*CHEMILUMINESCENCE, PROBABILITY), (*OZONE, CHEMILUMINESCENCE), (*NITROGEN COMPOUNDS, MONOXIDES), (*CARBON MONOXIDE, CHEMILUMINESCENCE), (*SULFIDES, CHEMILUMINESCENCE), HYDROGEN COMPOUNDS, CARBON COMPOUNDS, MOLECULAR BEAMS, LIGHT, PHOTONS

Subject Categories : Atmospheric Physics
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE