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Deep underground rotation measurements: GINGERino ring laser gyroscope in Gran Sasso
Author(s)
Language
English
Obiettivo Specifico
7TM. Sviluppo e Trasferimento Tecnologico
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
/88 (2017)
Pages (printed)
034502
Issued date
2017
Alternative Location
Abstract
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.
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.
Type
article
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