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The cosmic X-ray experiment aboard HEAO-1The 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.
Document ID
19780019098
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Rothschild, R. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bolt, E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Holt, S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Serlemitsos, P. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Garmire, G. (California Inst. of Technology Pasadena, Calif., United States)
Agrawal, P. (California Inst. of Technology Pasadena, Calif., United States)
Reigler, G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bowyer, C. S. (California Univ. Berkeley, Calif., United States)
Lampton, M. (California Univ. Berkeley, Calif., United States)
Date Acquired
September 3, 2013
Publication Date
June 1, 1978
Subject Category
Space Radiation
Report/Patent Number
NASA-TM-79574
Report Number: NASA-TM-79574
Accession Number
78N27041
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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