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Spark-chamber observation of galactic γ-radiation

Published online by Cambridge University Press:  14 August 2015

G. W. Hutchinson
Affiliation:
Physics Department, University of Southampton, England
A. J. Pearce
Affiliation:
Physics Department, University of Southampton, England
D. Ramsden
Affiliation:
Physics Department, University of Southampton, England
R. D. Wills
Affiliation:
Physics Department, University of Southampton, England

Abstract

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A γ-Ray telescope incorporating an acoustic spark chamber is included in the payload of the OGO-5 spacecraft. The performance of the instrument, which is sensitive to photons of energy 25 to 100 MeV, is discussed.

Observations are limited to a portion of the sky near Cygnus, but the first month's data indicate a variation of intensity showing a maximum in the direction of the galactic plane. If this plane contains a line source of radiation, its intensity is found to be (9 ± 5) × 10−4 photons cm−2 sec−1 rad−1 above an energy of 40 MeV.

Type
Research Article
Copyright
Copyright © Reidel 1970 

References

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Kraushaar, W. L.: 1970, this volume.Google Scholar