Gravity measurements below 10^-9 g with a transportable absolute quantum gravimeter.

ABSTRACT: Gravimetry is a well-established technique for the determination of sub-surface mass distribution needed in several fields of geoscience, and various types of gravimeters have been developed over the last 50 years. Among them, quantum gravimeters based on atom interferometry have shown top-level performance in terms of sensitivity, long-term stability and accuracy. Nevertheless, they have remained confined to laboratories due to their complex operation and high sensitivity to the external environment. Here we report on a novel, transportable, quantum gravimeter that can be operated under real world conditions by non-specialists, and measure the absolute gravitational acceleration continuously with a long-term stability below 10 nm.s^-2 (1 μGal). It features several technological

SUBMITTER: Menoret V 

PROVIDER: S-EPMC6098009 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature