HG+ TRAPPED ION STANDARD WITH THE SUPERCONDUCTING CAVITY MASER OSCILLATOR

Authors
PRESTAGE JD TJOELKER RL WANG RT DICK GJ MALEKI L
Citation
Jd. Prestage et al., HG+ TRAPPED ION STANDARD WITH THE SUPERCONDUCTING CAVITY MASER OSCILLATOR, IEEE transactions on instrumentation and measurement, 42(2), 1993, pp. 200-205
Citations number
14
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
IEEE transactions on instrumentation and measurement → ACNP
ISSN journal
00189456
Volume
42
Issue
2
Year of publication
1993
Pages
200 - 205
Database
ISI
SICI code
0018-9456(1993)42:2<200:HTISWT>2.0.ZU;2-6
Abstract
The frequency stability of an atomic standard based on Hg-199+ ions co nfined in a hybrid RF/dc linear trap is described. The 40.5 GHz clock transition has been measured to be 17 mHz wide, representing a quality factor greater than 2 X 10(12). A 160 mHz line is used to steer the o utput of a 5 MHz crystal oscillator to obtain a stability of 2 x 10(-1 5) for 24 000 s averaging times. In a separate measurement, a 37 mHz l ine is used to steer the output of the superconducting cavity maser os cillator to reach 1 x 10(-15) stability at 10 000 s.