Accession Number : ADP002450

Title :   Laser Cooled 9Be+ Accurate Clock,

Corporate Author : NATIONAL BUREAU OF STANDARDS BOULDER CO TIME AND FREQUENCY DIV

Personal Author(s) : Bollinger,J. J. ; Itano,W. M. ; Wineland,D. J.

Report Date : 1983

Pagination or Media Count : 5

Abstract : The use of laser cooled stored ions in an atomic frequency standard has the potential of very high accuracy because Doppler effects are greatly suppressed. A clock based on the ground-state hyperfine transition in 201Hg+ has potential accuracy and stability exceeding 1 part in 1015. However, laser cooled 9Be+ ions are experimentally easier to obtain. Therefore a 9Be+ based frequency standard is investigated in order to study the generic problems of laser cooled stored ion frequency standards.

Descriptors :   *Frequency standards, *Beryllium, *Clocks, Lasers, Cooling, Ions, Accuracy, Measurement, Clouds, Frequency, Doppler effect

Distribution Statement : APPROVED FOR PUBLIC RELEASE