[time-nuts] New design of Cesium tube ?

Brooke Clarke brooke at pacific.net
Thu May 12 19:50:04 EDT 2005

Hi Bill:

I wouldn't trade in my Cs just yet.  Have a look at the performance:


Brooke Clarke, N6GCE
w/Java http://www.PRC68.com
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml

Bill Janssen wrote:

> The MAy 2005 issue of IEEE Spectrum has a short article about a new design
> of a Cesium standard. The inventor is John Kitching of NIST.
> The claim is this new design will be less expensive and smaller than the 
> existing design.
> I have included a couple of quotes from the article
> "Right now the cesium-vapor chamber takes up a few cubic millimeters. Throw
> in the laser, the optics and the electronics and were up to maybe a 
> cubic centimeter."
> "Besides being cheap, the new atomic clocks will also be frugal with power"
> So maybe when the existing Cesium standards wear out they can be replaced
> with a new and cheaper one. I might even be able to afford a new one :-)
> Bill K7NOM
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