A study and performance evaluation of hydrogen maser used in Chinese mobile VLBI stations

Authors
Zhang, WQ Lin, CF Yu, SL Wang, GZ Zhang, YP Yang, PH Zhang, J
Citation
Wq. Zhang et al., A study and performance evaluation of hydrogen maser used in Chinese mobile VLBI stations, CHIN ASTR A, 25(3), 2001, pp. 390-397
Citations number
6
Categorie Soggetti
Space Sciences
Journal title
CHINESE ASTRONOMY AND ASTROPHYSICS
ISSN journal
02751062 → ACNP
Volume
25
Issue
3
Year of publication
2001
Pages
390 - 397
Database
ISI
SICI code
0275-1062(200107/09)25:3<390:ASAPEO>2.0.ZU;2-A
Abstract
Hydrogen maser is an essential frequency reference standard in radio astron omy. This paper provides information on the design and specifications of a new generation of hydrogen maser for the Chinese mobile VLBI stations, inco rporating improvements in the microwave cavity-storage bulb, magnetic shiel ds, and atomic beam optics. The performance measurements shows that the fre quency stability is better than 1 x 10(-14) for time intervals from 80 seco nds to 1 day.