Control strategy to limit duty cycle impact of earthquakes on the LIGO gravitational-wave detectors

S. Biscans; J. Warner; R. Mittleman; C. Buchanan; M. Coughlin; M. Evans; H. Gabbard; J. Harms; B. Lantz; N. Mukund; A. Pele; C. Pezerat; P. Picart; H. Radkins; T. Shaffer

doi:10.1088/1361-6382/aaa4aa

Control strategy to limit duty cycle impact of earthquakes on the LIGO gravitational-wave detectors

S. Biscans, J. Warner, R. Mittleman, C. Buchanan, M. Coughlin, M. Evans, H. Gabbard, J. Harms, B. Lantz, N. Mukund, A. Pele, C. Pezerat, P. Picart, H. Radkins, T. Shaffer

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Abstract

Advanced gravitational-wave detectors such as the laser interferometer gravitational-wave observatories (LIGO) require an unprecedented level of isolation from the ground. When in operation, they measure motion of less than 10^-19 m. Strong teleseismic events like earthquakes disrupt the proper functioning of the detectors, and result in a loss of data. An earthquake early-warning system, as well as a prediction model, have been developed to understand the impact of earthquakes on LIGO. This paper describes a control strategy to use this early-warning system to reduce the LIGO downtime by ∼30%. It also presents a plan to implement this new earthquake configuration in the LIGO automation system.

Original language	English (US)
Article number	055004
Journal	Classical and Quantum Gravity
Volume	35
Issue number	5
DOIs	https://doi.org/10.1088/1361-6382/aaa4aa
State	Published - Jan 31 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018 IOP Publishing Ltd.

Keywords

LIGO
control
earthquakes
seismic

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Biscans, S., Warner, J., Mittleman, R., Buchanan, C., Coughlin, M., Evans, M., Gabbard, H., Harms, J., Lantz, B., Mukund, N., Pele, A., Pezerat, C., Picart, P., Radkins, H., & Shaffer, T. (2018). Control strategy to limit duty cycle impact of earthquakes on the LIGO gravitational-wave detectors. Classical and Quantum Gravity, 35(5), Article 055004. https://doi.org/10.1088/1361-6382/aaa4aa

Biscans, S, Warner, J, Mittleman, R, Buchanan, C, Coughlin, M, Evans, M, Gabbard, H, Harms, J, Lantz, B, Mukund, N, Pele, A, Pezerat, C, Picart, P, Radkins, H & Shaffer, T 2018, 'Control strategy to limit duty cycle impact of earthquakes on the LIGO gravitational-wave detectors', Classical and Quantum Gravity, vol. 35, no. 5, 055004. https://doi.org/10.1088/1361-6382/aaa4aa

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AU - Coughlin, M.

AU - Evans, M.

AU - Gabbard, H.

AU - Harms, J.

AU - Lantz, B.

AU - Mukund, N.

AU - Pele, A.

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AB - Advanced gravitational-wave detectors such as the laser interferometer gravitational-wave observatories (LIGO) require an unprecedented level of isolation from the ground. When in operation, they measure motion of less than 10-19 m. Strong teleseismic events like earthquakes disrupt the proper functioning of the detectors, and result in a loss of data. An earthquake early-warning system, as well as a prediction model, have been developed to understand the impact of earthquakes on LIGO. This paper describes a control strategy to use this early-warning system to reduce the LIGO downtime by ∼30%. It also presents a plan to implement this new earthquake configuration in the LIGO automation system.

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Control strategy to limit duty cycle impact of earthquakes on the LIGO gravitational-wave detectors

Abstract

Bibliographical note

Keywords

UN SDGs

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