NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
The HEAO-A Scanning Modulation Collimator instrumentThe Scanning Modulation Collimator X-ray instrument for the HEAO-A satellite was designed to measure celestial radiation in the range between 1 and 15 KeV and to resolve, and correlate, the position of X-ray sources with visible light sources on the celestial sphere to within 5 arc seconds. The positional accuracy is made possible by mechanical collimation of the X-ray sources viewed by the instrument. High sensitivity is provided from two systems each containing four gas filled proportional counters followed by preamplification, signal summing, pulse height analysis, pulse shape discrimination, X-ray event accumulators and telemetry processing electronics.
Document ID
19770041757
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Roy, A. (American Science and Engineering, Inc. Cambridge, MA, United States)
Ballas, J. (American Science and Engineering, Inc. Cambridge, MA, United States)
Jagoda, N. (American Science and Engineering, Inc. Cambridge, MA, United States)
Mckinnon, P. (American Science and Engineering, Inc. Cambridge, MA, United States)
Ramsey, A. (American Science and Engineering, Inc. Cambridge, MA, United States)
Wester, E. (American Science and Engineering, Inc. Cambridge, Mass., United States)
Date Acquired
August 8, 2013
Publication Date
February 1, 1977
Subject Category
Spacecraft Instrumentation
Accession Number
77A24609
Funding Number(s)
CONTRACT_GRANT: NAS8-27973
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.

Related Records

There are no records associated with this record.
No Preview Available