Hard X-ray studies with a balloon-borne large area xenon detector telescope

Details Hard X-ray studies with a balloon-borne large area xenon detector telescope Hard X-ray studies with a balloon-borne large area xenon detector telescope

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993adspr..13..197a&link_type=abstract

Advances in Space Research (ISSN 0273-1177), vol. 13, no. 2, p. 197-200.

Physics

1

Balloon Flight, Balloon-Borne Instruments, Proportional Counters, X Ray Telescopes, Collimators, Cosmic X Rays, Cyclotron Radiation, Emission Spectra, Light Curve, Servocontrol

Scientific paper

Large-area multilayer proportional chambers filled with xenon were developed for the study of cosmic X-ray sources in 20-100 keV range. The X-ray telescope consists of two such detectors, each having an effective area of 1200 sq cm and equipped with a 5 x 5 deg FWHM collimator mounted on a servo-controlled orientation platform for making pointed-mode observations. Superior energy resolution of the xenon detectors, being 10 percent FWHM at 22 keV, makes them well suited for detection of cyclotron emission lines in the spectra of X-ray pulsars. The X-ray light curves and energy spectrum of the 4.8 hour binary Cyg X-3, observed in a balloon flight in March 1986 is described.

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