| Zugriffsnummer | 13797 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Recent results from PTB's caesium fountain CSF1 |
| Autor(in); Institution |
Weyers, Stefan; 4.32, Zeiteinheit, PTB-Braunschweig
Schröder, Roland; 4.32, Zeiteinheit, PTB-Braunschweig
Bauch, Andreas; 4.32, Zeiteinheit, PTB-Braunschweig
|
| Quelle/Jahr | 15th European Frequency and Time Forum: Neuchâtel, Switzerland, March 6 - 8, 2001 ; proceedings = 15ème Forum Européen Fréquence et Temps:(2001), 62 - 66 |
| Herausgeber(in) |
FSRM
|
| Verlag | Neuchâtel: Swiss Foundation for Research and Microtechnology |
| Konferenzangaben | 15th European Frequency and Time Forum ; EFTF 2001, Neuchâtel, 06-08, March, 2001, Switzerland |
| Freie Schlagworte | atomic frequency standard ; caesium fountain ; TAI |
| Zusammenfassung | At the Physikalisch-Technische Bundesanstalt (PTB) a new primary frequency standard, the atomic caesium fountain CSF1, has been put into operation. The first uncertainty evaluation yielded a relative 1(σ)frequency uncertainty of 1.4x10-15. The short-term relative frequency instability is typically 3.5x10-13x(τ/s)-1/2, dictated by the available quartz oscillator as the local frequency source. Some details of the uncertainty evaluation are given in this contribution. Between August 2000 and November 2000 first data of CSF1 for the steering of the free atomic time scale EAL were reported covering four periods, each of 15 days duration. |
