Underground operation at best sensitivity of the mobile LNE-SYRTE Cold Atom Gravimeter

2014/04/27 by Tristan Farah, Farah, Tristan, Christine Guerlin +11 · 2 citations
Engineering · Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic Physics (physics.atom-ph) #Atomic and Subatomic Physics Research #FOS: Physical sciences #Geophysics and Sensor Technology #Instrumentation and Detectors (physics.ins-det)

paper · doi:10.48550/arxiv.1404.6722

openalex publication_date 2014/04/27 · openalex created_date 2019/06/27 · openalex updated_date 2026/07/28

Abstract

Low noise underground environments offer conditions allowing to assess ultimate performance of high sensitivity sensors such as accelerometers, gyrometers, seismometers... Such facilities are for instance ideal for observing the tiny signals of interest for geophysical studies. Laboratoire Souterrain à Bas Bruit (LSBB) in which we have installed our cold atom gravimeter, provides such an environment. We report here the best short term sensitivity ever obtained without any ground vibration isolation system with such an instrument: 10^-8m.s^-2 in 100 s measurement time.

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