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

Autor: 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.
Rok vydání: 2017
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1088/1361-6382/aaa4aa
Popis: 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 are expected to observe changes in the space-time continuum of less than one thousandth of the diameter of a proton. Strong teleseismic events like earthquakes disrupt the proper functioning of the detectors, and result in a loss of data until the detectors can be returned to their operating states. An earthquake early-warning system, as well as a prediction model have been developed to help 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.
Databáze: arXiv