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physics.ins-det2021★ 35 cited
A study of scalar optically-pumped magnetometers for use in magnetoencephalography without shielding
Richard J. Clancy, Vladislav Gerginov, Orang Alem +2
Scalar optically-pumped magnetometers (OPMs) are being developed in small packages with high sensitivities. The high common-mode rejection ratio of these sensors allows for detecti…
physics.ins-det2019★ 39 cited
Direct comparisons of European primary and secondary frequency standards via satellite techniques
F. Riedel, A. Al-Masoudi, E. Benkler +46
We carried out a 26-day comparison of five simultaneously operated optical clocks and six atomic fountain clocks located at INRIM, LNE-SYRTE, NPL and PTB by using two satellite-bas…