Physics
Scientific paper
Aug 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icrc....8....5r&link_type=abstract
IN: International Cosmic Ray Conference, 18th, Bangalore, India, August 22-September 3, 1983, Conference Papers. Volume 8 (A85-2
Physics
1
Balloon-Borne Instruments, Cosmic X Rays, Spectral Sensitivity, X Ray Sources, X Ray Telescopes, Efficiency, Energy Spectra, Proportional Counters, Scintillation Counters, Spectral Resolution
Scientific paper
A brief description is given of the details of a balloon borne large area detector system and associated instrumentation for spectral studies of hard X-ray sources. The X-ray telescope includes two identical multiwire proportional counters with effective area of 1200 sq cm each, filled with xenon-argon-methane mixture. The average detection efficiency in 20-100 keV band is about 50 percent and typical energy resolution at 44 keV is 10 percent FWHM. The telescope can be preprogrammed to track any celestial source. The detection sensitivity for one hour of observation is estimated to be 0.00001 photons per sq cm per S per keV.
Agrawal Prahlad C.
Manchanda Ravi K.
Rao Ravi A.
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