This link shows the light from a rubidium spectral lamp. Its appearance is quite similar to the rubidium lamps used in various rubidium standards.
There can be a slight bluish cast also, especially at low temperatures as the lamp warms up. I'm not familiar with the R&S but depending on the design there may not be any channel to view the lamps discharge! http://www.lamptech.co.uk/Spec%20Sheets/Osram%20Spectral%20Rb.htm Corby Dawson ____________________________________________________________ TODAY: iPads for $23.74? SPECIAL REPORT: iPads are being auctioned for an incredible 80% off! http://thirdpartyoffers.juno.com/TGL3141/4d29f45423d4faa5587st02duc _______________________________________________ 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.