| Zugriffsnummer | 12908 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | First performance results of PTB's atomic caesium fountain and a study of contributions to its frequency instability |
| Autor(in); Institution |
Weyers, Stefan; 4.32, Zeiteinheit, PTB-Braunschweig
Bauch, Andreas; 4.32, Zeiteinheit, PTB-Braunschweig
Hübner, Udo; 4.32, Zeiteinheit, PTB-Braunschweig
Schröder, Roland; 4.32, Zeiteinheit, PTB-Braunschweig
Tamm, Christian; 4.32, Zeiteinheit, PTB-Braunschweig
|
| Quelle/Jahr | IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control: 47 (2000), 2, 432 - 437 |
| ISSN | 0885-3010 |
| Freie Schlagworte | Time Unit ; Atomic Clock ; Fountain ; Frequency Instability |
| Zusammenfassung | At the Physikalisch-Technische Bundesanstalt (PTB), an atomic caesium foutain was constructed. Ramsey fringes with a full width at half maximum (FWHM) of 0.86 Hz were obtained by launching the atoms to a height of 83 cm above the cooling region (40 cm above the microwave cavity center). At first measurement of the homogeinity of the magnetic flux density yields 0.33 nT (rms), only 0.16% of the mean value of 0.205 mikroT used in normal operation. The inherent elementary noise contributions of the fountain and of a thermal beam atomic clock are compared in some detail. |
Zitierung
Weyers, S., Bauch, A., Hübner, U., Schröder, R., & Tamm, C. (2000). First performance results of PTB's atomic caesium fountain and a study of contributions to its frequency instability. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 47(2), 432–437.