FYI, Ron Walsworth did his PhD in Prof. Ike Silvera's Group at Harvard. Among his advisors were Robert Vesseau of SAO/CFA, the builder of a number of very high performance H2 MASERS.
Ron's experiment was trying to build an H2 MASER with superfluid He coated walls. Best, -John ================ > John Miles brought up an interesting question that got lost in the > discussion of high vacuum systems: what about the choice of gas? > > Besides H, there is a dual Xe/He system detailed in: > > http://www.cfa.harvard.edu/Walsworth/pdf/Bear%20thesis.pdf > > And, as mentioned before, Harvard has built Rb masers: > > http://cfa-www.harvard.edu/~dphil/work/coat.pdf<http://cfa-www.harvard.edu/%7Edphil/work/coat.pdf> > <http://cfa-www.harvard.edu/%7Edphil/work/coat.pdf> > > And John mentioned HN3 masers (advantage: you would be able to smell the > leak!). > _______________________________________________ > 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. > > _______________________________________________ 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.