On Sun, 29 Apr 2012 13:19:08 -0700 ed breya <e...@telight.com> wrote:
> If the Rb cell "drifted" enough (maybe if it was filled with water) > to de-tune the mechanical cavity resonator, it wouldn't work at all. > Only a small amount of the RF power in the cavity is coupled into the > Rb gas. The bandwidth of the Rb resonance is a fraction of a Hz (Q in > the millions), while the bandwidth of the cavity is probably 20-50 > MHz, (Q may be up to 100). Not quite true. While the theoretical line width of Rb is very small, the line width of a Rb gas cell is in the range of 100Hz to 100kHz, depending on the size of the cell, wall coatings, the buffer gas type, the pressure and temperature. Attila Kinali -- Why does it take years to find the answers to the questions one should have asked long ago? _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.