Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978stin...7827041r&link_type=abstract
Unknown
Astronomy and Astrophysics
Astronomy
Cosmic X Rays, Experiment Design, Heao, Spaceborne Astronomy, Spaceborne Experiments, X Ray Astronomy, Collimators, Data Processing, Gas Detectors, Light Emitting Diodes, Proportional Counters, Readout
Scientific paper
The HEAO-1 A-2 experiment, designed to study the large scale structure of the galaxy and the universe at X-ray energies is described. The instrument consists of six gas proportional counters of three types nominally covering the energy ranges of 0.15-3 keV, 1.2-20 keV, and 2.5-60 keV. The two low energy detectors have about 400 sq cm open area each while the four others have about 800 sq cm each. Dual field of view collimators allow the unambiguous determination of instrument internal background and diffuse X-ray brightness. Instrument characteristics and early performance are discussed.
Agrawal Pankaj
Bolt E.
Bowyer Stuart C.
Garmire Gordon
Holt Stephen S.
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