Abstract. In this paper we present an accuracy evaluation of the primary frequency standard IEN-CsF1 of the Italian 'Istituto Nazionale di Ricerca Metrologica'. In particular, we discuss the major improvements applied to the frequency standard that have allowed us to reach a total uncertainty of 8 × 10-16 in a measurement period of 20 days to 25 days. The full metrological chain that links the IEN-CsF1 fountain to the International Atomic Time scale is described and characterized, with respect to its noise and performances.
IEN-CsF1 primary frequency standard at INRIM accuracy evaluation and TAI calibrations / Levi, Filippo; Calonico, Davide; Lorini, Luca; A., Godone. - In: METROLOGIA. - ISSN 0026-1394. - 43 (6):6(2006), pp. 545-555. [10.1088/0026-1394/43/6/010]
IEN-CsF1 primary frequency standard at INRIM accuracy evaluation and TAI calibrations
LEVI, FILIPPO;CALONICO, DAVIDE;LORINI, LUCA;
2006
Abstract
Abstract. In this paper we present an accuracy evaluation of the primary frequency standard IEN-CsF1 of the Italian 'Istituto Nazionale di Ricerca Metrologica'. In particular, we discuss the major improvements applied to the frequency standard that have allowed us to reach a total uncertainty of 8 × 10-16 in a measurement period of 20 days to 25 days. The full metrological chain that links the IEN-CsF1 fountain to the International Atomic Time scale is described and characterized, with respect to its noise and performances.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
