Beam Trajectory in Cesium-Beam Primary Frequency Standard and Its Influence on Frequency Stability and Shift

Autor:	Koji Nakagiri, Shinji Urabe, Haruo Okazawa, Masaaki Shibuki
Rok vydání:	1988
Předmět:	Beam diameter Conjugate beam method Chemistry business.industry General Engineering General Physics and Astronomy Collimator Frequency standard law.invention Laser linewidth Optics law Physics::Accelerator Physics M squared Laser beam quality business Beam (structure)
Zdroj:	Japanese Journal of Applied Physics. 27:2383
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.27.2383
Popis:	A simulation of a cesium-beam primary frequency standard, using a beam-trajectory method, is carried out. In the calculations, the following assumptions are made: 1) the beam collimator has a finite area instead of a point source, 2) the effective dipole moment is dependent on the position in the hexapole magnet, 3) the atoms rotate about a beam axis, 4) the beam trajectory falls due to gravity, 5) the first-order Doppler effect and distributed cavity phase difference in the interaction regions of the Ramsey cavity apply. By evaluating the equations and the experimental results, the influence of beam trajectory on beam efficiency, frequency stability and microwave power-dependent frequency shift are examined.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::128c4ec489d582f1de74dbf1723c8b39 https://doi.org/10.1143/jjap.27.2383 Zobrazit plný text záznamu