NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Radioactivity observed in scintillation counters during the HEAO-1 missionResults are reported from an analysis of radioactivity induced in the NaI medium-energy detector of the hard X-ray and low-energy gamma-ray experiment during the HEAO-1 satellite mission (1977-1978). Consideration is given to the instrument characteristics, the origin and variability of background, and the separation of cosmic-ray activity from the internal activity due to South Atlantic Anomaly trapped protons. Energy spectra and tables listing the nuclide identifications are provided.
Document ID
19900038265
Document Type
Conference Proceedings
Authors
Gruber, D. E. (California Univ. La Jolla, CA, United States)
Jung, G. V. (California Univ. La Jolla, CA, United States)
Matteson, J. L. (California, University La Jolla, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
SPACE RADIATION
Funding Number(s)
CONTRACT_GRANT: NAG8-499
Distribution Limits
Public
Copyright
Other