[time-nuts] Homebrew primary standard?

Rick Karlquist richard at karlquist.com
Fri Jul 27 14:35:49 EDT 2007


Wow, as a member of the 5071 cesium R&D team, I couldn't imagine
a homebrew cesium standard.  There is so much knowledge involved
in building one, plus you need high vacuum equipment, etc.  "Big"
cesiums like NIST-7 have a group of post docs to tend to them.

Now you did say "primary" but if you were willing to look at secondary
standards, a Rb might just barely be possible if you can somehow
get the glassware.  I also designed a Rb and there is much to learn
there as well, although a lot less than cesium.

Ask someone else about H masers and homebrewing.  Don't know much
about those.  They seem "simple" to me, as an ignorant bystander.

Rick Karlquist



michael taylor wrote:
> ); SAEximRunCond expanded to false
> Errors-To:
> time-nuts-bounces+richard=karlquist.com+richard=karlquist.com at febo.com
>
> Has there been any attempts (or successes) at someone outside of a
> national laboratory, and commercial R&D groups to build a primary
> frequency/time standard?
>
> I am not sure if there is anything that would prevent an individual
> from building a cesium standard of the quality seen in early models
> from NPL and NIST, or an industrial style (compact Ramsey cavity)
> standard.
>
> -Michael
>
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