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Measurements of A Gamma-Ray Burst above 1 MeV

Published online by Cambridge University Press:  14 August 2015

R. Koga ,
G. M. Simnett  and
R. S. White
R. Koga
Affiliation:
Physics Dept. and Institute of Geophysics and Planetary Physics, University of California, Riverside, Calif., U.S.A.
G. M. Simnett
Affiliation:
Physics Dept. and Institute of Geophysics and Planetary Physics, University of California, Riverside, Calif., U.S.A.
R. S. White
Affiliation:
Physics Dept. and Institute of Geophysics and Planetary Physics, University of California, Riverside, Calif., U.S.A.

Summary

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Observations of a burst of gamma radiation, starting at 201247 UT, 1972, May 14 are reported. The measurements were made with a 0.5 m2 actively shielded scintillator which was the front element of a double Compton telescope, during a balloon flight at an altitude of 5 mb from Palestine, Texas. The maximum intensity of the burst was 0.10±0.02 cm-2 s-1 above 1 MeV, and the duration was 3.5±0.4 min. The burst intensity during the first 2 min is constant to within 10%. No known electronic or detector malfunction could have produced this effect, and we believe it is a real event.

Type
Part 3: Solar Flares
Information
Symposium - International Astronomical Union , Volume 68: Solar X, Gamma, and EUV Radiation , 1975 , pp. 361
Copyright
Copyright © Reidel 1975