Search for cosmic gamma radiation with a vidicon spark chamber
- 15 May 1968
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Physics
- Vol. 46 (10), S427-S432
- https://doi.org/10.1139/p68-263
Abstract
A vidicon spark chamber flown in a high-altitude balloon has been used to search for primary gamma radiation (E > 100 MeV). No celestial gamma-ray source was detected. The new upper limit to the flux from the Crab nebula was found to be 3.1 × 10−5 cm−2 s−1, and the flux from the quiet sun to be [Formula: see text]. A solar flare (type 2) also occurred during the flight, of flux [Formula: see text], which is also a new upper limit. The gamma-ray background flux and energy spectrum at 4 g cm−2 altitude were measured.Keywords
This publication has 2 references indexed in Scilit:
- Upper Limits to CosmicRays in the Range 30 to 500 MeVPhysical Review Letters, 1966
- Spark-Chamber Experiment on Cosmic Gamma RaysPhysical Review Letters, 1965