Computer Science – Sound
Scientific paper
May 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81.2433a&link_type=abstract
Journal of Geophysical Research, vol. 81, May 1, 1976, p. 2433, 2434.
Computer Science
Sound
3
Balloon Sounding, Gamma Rays, High Energy Interactions, Line Spectra, Upper Atmosphere, Annihilation Reactions, Atmospheric Radiation, Atomic Excitations, Cooling Systems, Liquid Nitrogen, Oxygen Atoms, Radiation Detectors, Radiation Measurement, Spectral Resolution
Scientific paper
Results are presented for a high-energy-resolution gamma-ray experiment in the upper atmosphere. This balloon experiment used a nitrogen-cooled Ge-Li detector, and its purpose was to search for gamma-ray lines between 400 keV and 8 MeV. Apart from the 511-keV annihilation line, a feature was detected that is attributed to the 6129-keV line from the second excited state of O-16. For this line, a flux of 0.0073 (plus or minus 0.0044) photon/sq cm s was found at ceiling altitude.
Albernhe Francis
Vedrenne Gilbert
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