Computer Science – Performance
Scientific paper
Nov 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974csgr.conf..177m&link_type=abstract
In ESRO The Context and Status of Gamma Ray Astronomy p 177-184 (SEE N75-25813 16-93)
Computer Science
Performance
Energy Spectra, Gamma Rays, Heao, Satellite-Borne Instruments, X Rays, Background Radiation, Cosmic Rays, Crab Nebula, Diffuse Radiation, Performance Prediction, Project Planning, Radiation Sources, Scintillation Counters
Scientific paper
An HEAO-A spacecraft is described which is scheduled for launch in April 1977 to survey the sky in the 0.15 keV to 10 MeV range of X-rays with improved sensitivity and angular resolution. The spectral and time variations of discrete sources, and the spectrum and isotropy of the diffuse component will be measured. A hard X-ray and low energy gamma ray experiment is described which will use as an array of seven (NaI)(Tl)/CsI(Na) phoswich detectors and eight large CsI(Na) shields. Detector events are pulse-height analyzed with a selectable time resolution of 0.1, 0.005, or 0.00002 sec. The instrument background is expected to be comprised of approximately equal parts of diffuse gamma rays entering the aperture, radioactive decay of spallation products, and gamma ray leakage through the shields. Detailed background predictions are presented, and sensitivity estimates indicate that the Crab nebula should be detected up to approximately 5 MeV. Approximate 1% isotropy limits for the diffuse component of cosmic gamma rays should be achieved, and its spectrum measured with improved precision.
Matteson James L.
Pelling Michael R.
Peterson Laurence E.
No associations
LandOfFree
The UCSD/MIT hard X-ray and low energy gamma ray experiment for HEAO-A does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The UCSD/MIT hard X-ray and low energy gamma ray experiment for HEAO-A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The UCSD/MIT hard X-ray and low energy gamma ray experiment for HEAO-A will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1763476