Deep underground rotation measurements: GINGERino ring laser gyroscope in Gran Sasso
| Autor: | Gilberto Saccorotti, Filippo Bosi, Gaetano De Luca, Antonello Ortolan, Andreino Simonelli, Giorgio Carelli, Jacopo Belfi, Angela Di Virgilio, Nicolo' Beverini, Alberto Porzio, André Gebauer, D. Cuccato, G. Terreni, Enrico Maccioni |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Ground motion
Time delay and integration Physics - Instrumentation and Detectors Physics::Instrumentation and Detectors Bandwidth (signal processing) FOS: Physical sciences Spectral density Gyroscope Ring laser Instrumentation and Detectors (physics.ins-det) 010502 geochemistry & geophysics Geodesy 01 natural sciences law.invention Physics::Geophysics 010309 optics law 0103 physical sciences Broadband Ring laser gyroscope Instrumentation Geology 0105 earth and related environmental sciences |
| Popis: | 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 $10^{-10} \rm{(rad/s)/\sqrt{Hz}}$. A maximum resolution of $30\,\rm{prad/s}$ 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 are presented. Accepted for publication in Review in Scientific Instruments |
| Databáze: | OpenAIRE |
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