[time-nuts] Pressure related rubidium oscillator aging

Dana Whitlow k8yumdoober at gmail.com
Tue Aug 14 17:46:06 EDT 2018

What you say makes good sense, as He does not stick around very well- it
tend to diffuse out through the cell walls.

I once spoke with a fellow involved in the deep sea diving business, and he
that vidicon cameras used in the deep habitats used to deteriorate in
performance in
a matter of days due to in-diffusion from the high pressure He atmosphere.
had to order custom vidicon tubes made of special glasses for which He
was much lower.


On Tue, Aug 14, 2018 at 4:21 PM, Attila Kinali <attila at kinali.ch> wrote:

> On Tue, 14 Aug 2018 14:23:56 -0500
> Dana Whitlow <k8yumdoober at gmail.com> wrote:
> > Does the Rb cell use He as a buffer gas?
> AFAIK most use a Ne/N mixture these days. I am not sure whether
> I have seen He used as buffer gas for Rb cells, but I do not think so.
> Other noble gases (Ar, Xe, ...) popped up a few times, though.
>                         Attila Kinali
> --
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