IEN-CsF1 primary frequency standard at INRIM: accuracy evaluation and TAI calibrations

被引：45

作者：

Levi, F. ^{[1
]}

Calonico, D. ^{[1
]}

Lorini, L. ^{[1
]}

Godone, A. ^{[1
]}

机构：

[1] Ist Nazl Ric Metrol, I-10135 Turin, Italy

来源：

METROLOGIA | 2006年 / 43卷 / 06期

关键词：

D O I：

10.1088/0026-1394/43/6/010

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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 x 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.

引用

页码：545 / 555

页数：11

共 42 条

[1] Frequency shift of the cesium clock transition due to blackbody radiation [J].