[time-nuts] Qty of Rb in LPRO?
Glenn Powers
glenn at net127.com
Sun Jul 9 22:26:31 UTC 2006
On http://www.thinksrs.com/products/PRS10.htm SRS says:
"Historically, the lifetime of rubidium frequency standards has been
dominated by rubidium depletion in the discharge lamp. To avoid
excess flicker noise, manufacturers would load less than 100 µg of
rubidium into spherical discharge lamps. The PRS10 uses a lamp with a
side arm loaded with 1 mg of rubidium. This design eliminates
rubidium depletion as a failure mechanism, and provides better
temperature control without excess flicker noise."
Just out of curiosity, does anyone how much Rb is in the lamp of a
LPRO-101? I don't recall seeing that figure in any of the docs!
thanks,
glenn
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