Physics
Scientific paper
May 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978cosp.meetu....r&link_type=abstract
COSPAR, Plenary Meeting, 21st, Innsbruck, Austria, May 29-June 10, 1978, Paper. 4 p.
Physics
Earth Atmosphere, Emission Spectra, Heao, Sunlight, X Ray Fluorescence, Atmospheric Models, Limb Darkening, Nitrogen, Oxygen, Planetary Radiation, Satellite-Borne Instruments, Solar X-Rays, Thomson Scattering, X Ray Spectra
Scientific paper
The observations described in the present paper are the first satellite-based measurements of the characteristic K-alpha emission lines of nitrogen and oxygen from the earth's sunlit atmosphere. In addition to the atmospheric X-ray line emissions, lower energy X-ray emission was also observed. All measurements were made with a low energy (0.15 to 3 keV) detector of the A-2 experiment flown on the HEAO-1 spacecraft launched in August 1977. This detector is a multianode thin-window flow proportional counter with a multigrid collimator in front of it. Limb brightening of the X-ray intensity was observed as expected. The measured intensities are in reasonable agreement with calculations based on atmospheric and X-ray spectral models.
Charles Phil A.
McKenzie David L.
Rugge H. R.
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