The vertical component of 1-20 MeV gamma rays at balloon altitudes

Abstract

view Abstract Citations (72) References (43) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The vertical component of 1-20 MeV gamma rays at balloon altitudes Schoenfelder, V. ; Graml, F. ; Penningsfeld, F. -P. Abstract The diffuse cosmic and the vertical atmospheric component of 1-20 MeV gamma rays are determined from the gamma-ray data obtained during a balloon flight of the large-area Compton telescope of the Max-Planck-Institut. It is shown that the basic improvement of this new measurement above previous measurements with a first version of the Compton telescope is based on the fact that for each registered event various additional parameters are determined. Further, by means of the pulse shape measurement of neutron-induced events it is possible to determine most of the undesired background events from the data themselves. Finally, consideration is given to the origin of the diffuse cosmic gamma-ray component, and the results of the atmospheric gamma-ray component are compared with different model calculations. Publication: The Astrophysical Journal Pub Date: August 1980 DOI: 10.1086/158239 Bibcode: 1980ApJ...240..350S Keywords: Balloon Sounding; Cosmic Rays; Gamma Rays; Vertical Distribution; Atmospheric Radiation; Background Radiation; Compton Effect; Diffuse Radiation; Energy Spectra; Extraterrestrial Radiation; Space Radiation full text sources ADS |