[time-nuts] hp5065b !!!
magnus at rubidium.dyndns.org
Sat May 4 21:06:39 EDT 2013
Buffert gas slows down the rubidium atoms, which increases the Q value.
Already that is an important factor in the performance of rubidiums.
Then, the inevitable wall-shift can be first degree compensated by the
buffer gas mixture, and in there can the details of the RF synthesis be
compensated to suitable range.
Toss in the concerns of modern times that Bob mentioned and you start to
see that it is quite a few issues in there.
Also, the buffer gas in the lamp and in the reference cell is two
On 05/05/2013 02:48 AM, Bob Camp wrote:
> Buffer gas combo's are he voodoo of Rb cells. You can fiddle them to impact the temperature coefficient of the cell. They can also improve the degradation from impact with the cell walls. The Efratom boys came up with a way to improve filtering with a buffer gas mixture.
> On May 4, 2013, at 8:37 PM, Mark Spencer<mspencer12345 at yahoo.ca> wrote:
>> Hi, while skimming some articles I found re GPS satellites, I found some references to certain buffer gasses in Rb cells working much better with optical filters than others. As far as I know Rb buffer gas formulations are not disclosed by the manufacturers so I suspect this info may not be very actionable for those of us looking to improve our Rb's.
>> This has been a useful diversion to some academic stuff I'm dealing with this weekend (:
>> All the best
>> Mark S
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