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)/Hz. A maximum resolution of 30prad/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 are presented.
@article{arxiv.1702.02789,
title = {Deep underground rotation measurements: GINGERino ring laser gyroscope in Gran Sasso},
author = {Jacopo Belfi and Nicolo' Beverini and Filippo Bosi and Giorgio Carelli and Davide Cuccato and Gaetano De Luca and Angela Di Virgilio and Andre' Gebauer and Enrico Maccioni and Antonello Ortolan and Alberto Porzio and Gilberto Saccorotti and Andreino Simonelli and Giuseppe Terreni},
journal= {arXiv preprint arXiv:1702.02789},
year = {2017}
}
Comments
Accepted for publication in Review in Scientific Instruments