Rubidium atomic frequency source having small size and fast warm up

Authors :: T.J. Bennett
G.T. Norton
M.M. Zepler
R.E. Hayes
Source :: Electronics Letters. 6:734
Publication Year :: 1970
Publisher :: Institution of Engineering and Technology (IET), 1970.
Abstract: An experimental miniaturised rubidium frequency source which has been built in a volume of a little more than 100 in3 provides a stability of better than 1 part in 108 over one year and a warm-up time of 5 min. This long-term stability lies between that of a good crystal frequency standard and a high-grade rubidium atomic frequency standard.