The RB-87 isotope used in Rubidium standards is radioactive, but at such a slight activity level that special procedures and shielding must be used to measure it. Any chunk of granite, including your fancy kitchen counters, far "outshines" RB-87 as a radiation source! A garage built Rubidium standard would be quite feasible. The hardest parts would be the glassblowing and Rubidium filling, along with the requisite vacuum system and buffer gas filling. Seems it would be easier to pull the cells and lamp from some duds and start from there! The cells never wear out.
Corby Dawson ____________________________________________________________ Home Refinance 3.8% FIXED No Hidden Fees, Easy Approvals & Better Terms-Free Quotes-3.9% APR! http://thirdpartyoffers.juno.com/TGL3141/4d3149f3fc21b1746fst04duc _______________________________________________ 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.
