> Hi! > > I have collected some hyperfine splittings into a table with references. > I was reminded of this when asked offlist for the Rubidium splitting frequency. > Naturally, I would welcome feedback and contributions of both better resolution > measures as well as more isotopes. > > http://rubidium.dyndns.org/~magnus/physics/hyperfine/
Magnus, Nice page. I have 1 420 405 751.768 ± 0.002 Hz for hydrogen at my "hyperfine" page: http://www.leapsecond.com/pages/unix/ Also, for a a fresh Hg199+ reference see: Laser-Cooled Mercury Ion Frequency Standard D.J. Berkeland, J.D. Miller, J.C. Bergquist, W.M. Itano, and D.J. Wineland Phys. Rev. Lett. 80, 2089-2092 (1998) http://prola.aps.org/abstract/PRL/v80/i10/p2089_1 http://www.tf.nist.gov/timefreq/general/pdf/1225.pdf /tvb _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts