); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] 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: > [EMAIL PROTECTED] > > 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 > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
