By Topic

A 303-MHz frequency standard based on trapped Be/sup +/ ions

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Bollinger, J.J. ; national Institute of Standards and Technology ; Heizen, D.J. ; Itano, W.M. ; Gilbert, S.L.
more authors

A 303-MHz hyperfine transition in the ground state of 9Be+ was used as a basis of a frequency standard. The ions were stored in a Penning ion trap. Linewidths as narrow as 900μHz were obtained. The frequency stability was measured to be better than 3 x 10-12τ-1/2. The inaccuracy in the second-order .Doppler shift was reduced to 5 parts in 1015 by laser cooling. An apparent pressure shift with an unexpectedly large value was discovered which limits the accuracy of the current experiment to approximately 1 part in 1013.

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:40 ,  Issue: 2 )