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Cosmic Ray Induced Noise in Gravitational Wave Detectors

Published online by Cambridge University Press:  16 May 2016

R. W. Clay ,
A. G. K. Smith  and
J. L. Reid
R. W. Clay
Affiliation:
Department of Physics and Mathematical Physics, University of Adelaide, Adelaide, SA 5005, [email protected]
A. G. K. Smith
Affiliation:
Department of Physics and Mathematical Physics, University of Adelaide, Adelaide, SA 5005, [email protected]
J. L. Reid
Affiliation:
Department of Physics and Mathematical Physics, University of Adelaide, Adelaide, SA 5005, [email protected]
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Abstract

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Cosmic radiation is capable of depositing significant quantities of energy and momentum in gravitational wave antennas at times that will generally be random with respect to gravitational signals. Such cosmic ray effects may generate noise signals at detectable levels compared to antenna design thresholds at rates of a few per year but, since antennas will not be capable of absorbing all the cosmic ray energy, it should be readily possible to construct vetoing cosmic ray detectors. For proposed interferometer antennas, a deposition of a few hundred GeV will produce a detectable noise signal and the veto will require about 100 MeV of energy deposition outside the antenna. We consider here some of the principles involved in the generation of gravitational antenna noise by cosmic ray particles and we describe a veto system to be installed at the Perth gravitational wave observatory.

Keywords

cosmic raysgravitational antennas
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 14 , Issue 2 , 1997 , pp. 195 - 199
Copyright
Copyright © Astronomical Society of Australia 1997

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