[time-nuts] Storage of Rb & Cs standards?
brooke at pacific.net
Thu Aug 19 16:48:51 EDT 2004
So what is the low current doing during Rb storage, a heater? The same
wires are used with much higher currents I assume to boil the liquid
back to a gas?
Is there any gravity related issues with Rb and/or Cs standards, i.e.
can they be stored/operated in any orientation relative to down?
Sorry about the wrong Rb model number,
Brooke Clarke, N6GCE
Rick Karlquist wrote:
>>with the ion pump running. The manual for the HP 4065 Rb standard says
>>>to connect a low current source to a couple of wires when it's stored.
>The HP Rb std is model 5065A. Anyway, the issue with Rb is keeping
>the liquid Rb confined to the reservoir, rather than condensing
>in the optical path. Some Rb standards try to get around this
>by using a "starved" cell with no liquid Rb.
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