Accès public à partir du 1 mars 2019
Université de Neuchâtel

First uncertainty evaluation of the FoCS-2 primary frequency standard

Jallageas, Antoine ; Devenoges, Laurent ; Petersen, M ; Morel, J ; Bernier, L. G ; Schenker, Dominique ; Thomann, Pierre ; Südmeyer, Thomas

In: Metrologia, 2018, vol. 55, no. 3, p. 366-385

We report the uncertainty evaluation of the Swiss continuous primary frequency standard FoCS-2 (Fontaine Continue Suisse). Unlike other primary frequency standards which are working with clouds of cold atoms, this fountain uses a continuous beam of cold caesium atoms bringing a series of metrological advantages and specific techniques for the evaluation of the uncertainty budget. Recent...