Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978itns...25..437g&link_type=abstract
(IEEE, ERDA, and NASA, Nuclear Science Symposium, 4th, and Nuclear Power Systems Symposium, 9th, San Francisco, Calif., Oct. 19-
Astronomy and Astrophysics
Astronomy
26
Heao, Proportional Counters, Satellite-Borne Instruments, Spaceborne Telescopes, X Ray Telescopes, Collimators, Electric Power Supplies, Preamplifiers, Signal Processing, Spaceborne Astronomy
Scientific paper
The Monitor Proportional Counter Instrument for the HEAO-B X-ray Telescope satellite is designed to observe celestial X-ray sources in the range of 1 to 20 keV with intensities exceeding .0002 Crab. It provides both spectral and temporal data, to complement the data from the other HEAO-B instruments, to compare with observations from previous flights, as well as to allow detailed study of time variant X-ray phenomena. The basic detector is a large area proportional counter system, consisting of two counters, high voltage power supplies and preamplifiers, mounted behind a collimator with a 2/3 degree square field of view. The signal processing, power distribution and control electronics are contained in a separate unit, which includes circuitry to perform pulse height analysis, background rejection, time interval measurement, redundancy switching and control, housekeeping and telemetry interfacing.
Bjorkholm Paul
Gaillardetz R.
Howland D.
Mastronardi R.
Vanderhill M.
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