[time-nuts] a link to a explanation of Rb vs Cs?

[Ole Petter Rønningen]

A little of the thinking, and a bit of the history of the rb v cs is in "CESIUM AND RUBIDIUM FREQUENCY STANDARDS STATUS AND PERFORMANCE ON THE GPS PROGRAM"

http://www.stanson.ch/files/GPS/Vol%2027_14.pdf

Ole

> Den 12. apr. 2017 kl. 08.41 skrev Hal Murray <hmurray at megapathdsl.net>:
> 
> 
> jimlux at earthlink.net said:
>> If there's nothing folks are aware of, I'll probably see if I can find  some
>> nice schematic pictures of a Cs Beam, a gas cell, and an Hg ion  trap, and
>> then a AVAR plot or something. 
> 
> I think the GPS satellites have 3 Cs and 2 Rbs.  There might be an 
> interesting story about why they decided to split their eggs into two baskets.
> 
> -- 
> These are my opinions.  I hate spam.
> 
> 
> 
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