Computer Science – Performance
Scientific paper
Nov 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974csgr.conf..339s&link_type=abstract
In ESRO The Context and Status of Gamma Ray Astronomy p 339-344 (SEE N75-25813 16-93)
Computer Science
Performance
1
Energy Spectra, Gamma Rays, Performance Prediction, Satellite-Borne Instruments, Spark Chambers, Angular Resolution, Cos-B Satellite, Cosmic Rays, Galactic Radiation, Particle Trajectories, Photons, Project Planning, Sas, Satellite Observation
Scientific paper
The principles for the detection of gamma ray photons in spark chambers are reviewed leading to the pair-production process and possible determination of original gamma-photon energy and direction of incidence. Methods of gamma ray direction determination are presented. Data on cosmic gamma rays measured by ESRO-TD-1 and NASA SAS-2 satellite spark chambers are reported. Several alternative methods for the extraction of the best possible value for direction from the spark-chamber pictures are studied in connection with the ESRO COS-B which carries a single experiment containing a wire spark chamber with magnetic core memory. The results are presented and the optimum procedure suggested for the orbital data analysis is discussed.
Mayer-Hasselwander Hans A.
Shukla P. G.
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