Open AccessGINGER and GINGERINO
Author(s) -
A. Di Virgilio,
Jacopo Belfi,
F. Bosi,
Umberto Giacomelli,
G. Terreni,
N. Beverini,
Giorgio Carelli,
Donatella Ciampini,
I. Ferrante,
Francesco Fuso,
Enrico Maccioni,
G. Naletto,
A. Ortolan,
C. Altucci,
L. Velotta,
Alberto Porzio
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1342/1/012084
Subject(s) - duty cycle , gyroscope , rotation (mathematics) , inertial frame of reference , measure (data warehouse) , physics , laser , ring laser , sagnac effect , aerospace engineering , point (geometry) , ring (chemistry) , scale factor (cosmology) , optics , computer science , engineering , classical mechanics , mathematics , astronomy , chemistry , geometry , database , artificial intelligence , power (physics) , quantum mechanics , metric expansion of space , dark energy , cosmology , organic chemistry
GINGER (Gyroscopes IN General Relativity) is a proposal aiming at measuring the Lense-Thirring effect with an Earth based experiment, using an array of ringlasers, which are the most sensitive inertial sensors to measure the rotation rate of the Earth. The long term stability of the apparatus plays a crucial role for this experiment, and an underground location is advantageous from this point of view. GINGERINO is a single axis ring laser located inside the Gran Sasso laboratory. Gingerino has demonstrated that the very high thermal stability of the underground laboratory allows a continuous operation, sensitivity well below fractions of nrad/s, and with a duty cycle above 90% even in free running operation, without stabilisation of the scale factor of the ring laser.