Deep underground rotation measurements: GINGERino ring laser gyroscope in Gran Sasso

作者：Belfi Jacopo; Beverini Nicolo; Bosi Filippo; Carelli Giorgio; Cuccato Davide; De Luca Gaetano; Di Virgilio Angela; Gebauer Andre; Maccioni Enrico; Ortolan Antonello; Porzio Alberto; Saccorotti Gilberto; Simonelli Andreino; Terreni Giuseppe

来源：Review of Scientific Instruments, 2017, 88(3): 034502.

DOI：10.1063/1.4977051

GINGERino is a large frame laser gyroscope investigating the ground motion in the most inner part of the underground international laboratory of the Gran Sasso, in central Italy. It consists of a square ring laser with a 3.6 m side. Several days of continuous measurements have been collected, with the apparatus running unattended. The power spectral density in the seismic bandwidth is at the level of 10(-10) (rad/s)/root Hz. A maximum resolution of 30 prad/s is obtained with an integration time of few hundred seconds. The ring laser routinely detects seismic rotations induced by both regional earthquakes and teleseisms. A broadband seismic station is installed on the same structure of the gyroscope. First analysis of the correlation between the rotational and the translational signal is presented. Published by AIP Publishing.

• 出版日期2017-3