Computer Science – Sound
Scientific paper
Dec 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...218..920w&link_type=abstract
Astrophysical Journal, Part 1, vol. 218, Dec. 15, 1977, p. 920-927.
Computer Science
Sound
18
Balloon Sounding, Cosmic Rays, Diffuse Radiation, Gamma Ray Astronomy, Gamma Ray Telescopes, Angular Distribution, Background Radiation, Balloon-Borne Instruments, Calibrating, Compton Effect, Point Sources, Radiant Flux Density, X Ray Telescopes
Scientific paper
Results are reported for measurements of cosmic diffuse gamma rays performed with a double Compton scatter gamma-ray telescope flows aboard a balloon at 3.5-g/sq cm residual atmosphere. The operation and calibration of the telescope are briefly reviewed, unwanted backgrounds are identified, and the only significant background for the telescope used is shown to arise from the interaction of albedo neutrons with hydrogen and carbon in one of the liquid scintillators. The fluxes of cosmic diffuse gamma rays with energies of 2 to 3, 3 to 5, 5 to 7, 7.5 to 10 MeV are listed, and upper limits are provided for energies of 10 to 15 and 15 to 25 MeV. These data are compared with numerous previous measurements, and no indication is found that the diffuse radiation is statistically different from isotropic. Upper limits are placed on the gamma-ray fluxes (mainly 3 to 25 MeV) from various localized sources.
Dayton Benjamin
Moon Sung-Hyun
Ryan Michael J.
White Steven R.
Wilson Robert B.
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