Spectrum of the cosmic X- and gamma ray background in the energy range 1 keV-1 MeV |
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Authors: | K Kasturirangan U R Rao |
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Institution: | 1. Physical Research Laboratory, Ahmedabad, India
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Abstract: | Available satellite, rocket and balloon observations on cosmic X- and gamma ray background are critically examined to understand the spectral characteristics of the radiation. Appropriate corrections have been applied to the balloon observations to account for the multiple Compton scattering of X-rays in the atmosphere. It is shown that within the experimental uncertainties, all the available observations of cosmic X- and gamma ray background in the energy range 1 keV-1 MeV are consistent with a single spectrum of type $${\text{d}}N/{\text{d}}E = 30 E^{ - 2.0 \pm 0.2} {\text{photons cm}}^{{\text{ - 2}}} {\text{s}}^{{\text{ - 1}}} {\text{sr}}^{{\text{ - 1}}} {\text{keV}}^{{\text{ - 1}}} $$ . |
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