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

被引:46
|
作者
Belfi, Jacopo [1 ]
Beverini, Nicolo [1 ,2 ]
Bosi, Filippo [1 ]
Carelli, Giorgio [1 ,2 ]
Cuccato, Davide [3 ]
De Luca, Gaetano [4 ]
Di Virgilio, Angela [1 ]
Gebauer, Andre [5 ]
Maccioni, Enrico [1 ,2 ]
Ortolan, Antonello [6 ]
Porzio, Alberto [7 ,8 ]
Saccorotti, Gilberto [9 ]
Simonelli, Andreino [1 ,5 ,10 ]
Terreni, Giuseppe [1 ]
机构
[1] INFN, Sez Pisa, I-56127 Pisa, Italy
[2] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy
[3] Univ Padua, Dipartimento Ingn Informaz, I-35131 Padua, Italy
[4] INGV, Ctr Nazl Terremoti, I-67100 Laquila, Italy
[5] Ludwig Maximilians Univ Munchen, Dept Earth & Environm Sci, D-80333 Munich, Germany
[6] INFN, Lab Nazl Legnaro, I-35020 Legnaro, Italy
[7] CNR, SPIN Napoli, I-80126 Naples, Italy
[8] INFN, Sez Napoli, I-80126 Naples, Italy
[9] INGV, Sez Pisa, I-56127 Pisa, Italy
[10] Univ Pisa, Dipartimento Sci Terra, I-56127 Pisa, Italy
来源
REVIEW OF SCIENTIFIC INSTRUMENTS | 2017年 / 88卷 / 03期
关键词
EARTHQUAKE; SIGNALS;
D O I
10.1063/1.4977051
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
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.
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页数:6
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