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Detection of Pulsed Gamma Radiation from the Crab Nebula

Nature Physical Science volume 232, pages 99–101 (1971)Cite this article

Abstract

A BALLOON borne telescope, sensitive to gamma radiation above 50 MeV, was flown from Palestine, Texas, on January 9/10, 1971. The apparatus, a development of an earlier model1, consisted of an optical spark chamber triggered by a counter telescope and will be fully described later. The spark chamber now has 70 gaps and a sensitive area of 2,500 cm2. The balloon reached ceiling at 02.30 UT and floated at an altitude of 119 × 103 feet (4.9 grms) until cut down at 07.00 UT. During the period between 03.30 UT and 06.20 UT the telescope was steered to within ± 10° of the Crab Nebula.

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Authors and Affiliations

  1. Department of Physics, University of Southampton,

    R. BROWNING, D. RAMSDEN & P. J. WRIGHT

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  1. R. BROWNING
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  2. D. RAMSDEN
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  3. P. J. WRIGHT
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BROWNING, R., RAMSDEN, D. & WRIGHT, P. Detection of Pulsed Gamma Radiation from the Crab Nebula. Nature Physical Science 232, 99–101 (1971). https://doi.org/10.1038/physci232099a0

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