[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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