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The Hard X-ray experiment on the Astronomical Netherlands SatelliteThe Hard X-ray Experiment flown on the Astronomical Netherlands Satellite is described. The instrument consists of two parts. One is a large-area detector of about 60 sq cm in total area, sensitive in the energy range between 1.5 and 30 keV. Two counters comprise this detector, each collimated 10 min by 3 deg and offset in the narrow direction by 4 min. The other part is a Bragg-crystal assembly consisting of two PET crystals and counters aligned to search for the silicon emission lines near 2 keV. Instrument characteristics and orbital operations are described.
Document ID
19760030048
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/181958
Authors
Gursky, H. (American Science and Engineering, Inc. Cambridge, MA, United States)
Schnopper, H. (Smithsonian Astrophysical Observatory and Harvard College Observatory Cambridge, Mass., United States)
Parsignault, D. (American Science and Engineering, Inc. Cambridge, Mass., United States)
Date Acquired
August 8, 2013
Publication Date
November 1, 1975
Publication Information
Publication: Astrophysical Journal
Volume: 201
Subject Category
Instrumentation And Photography
Accession Number
76A13014
Funding Number(s)
CONTRACT_GRANT: NAS5-11350
CONTRACT_GRANT: NAS5-23282
Distribution Limits
Public
Copyright
Other

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