[time-nuts] Re: Creating a D.I.Y Rubidium Atomic Clock

[Leo Ahluwalia]

Hello Lux, I appreciate the offer, and while I haven't done much research
regarding the Cold Atom Lab project, it's to my understanding that it
utilizes an atom chip for a lot of its procedures regarding the containment
of the Rb and potassium. While I'd love to work on something of that scale
one day, it's definitely above my paygrade both in terms of knowledge and
equipment as of right now.

Thanks, Leo

On Wed, Jun 7, 2023 at 9:31 PM Lux, Jim via time-nuts <
time-nuts at lists.febo.com> wrote:

> On 6/7/23 7:22 AM, Bob Camp via time-nuts wrote:
> > Hi
> >
> > Back when I was with EG&G, they spent a *lot* of effort on the
> “glassware” side
> > of things. It was a major undertaking for a facility that already made
> vacuum
> > tubes.
> >
> > Was what they did overkill? In the end that was a bit unclear. Their
> whole “accurate
> > dose” gas fill was still being debated years later. That said, you still
> need some
> > way to get a very precise mix into each and every cell.
> >
> > Bob
> >
> >> On Jun 6, 2023, at 8:26 PM, Richard Karlquist via time-nuts <
> time-nuts at lists.febo.com> wrote:
> >>
> >> In a former life, I was on the design team of a mini rubidium standard
> >> at Hewlett-Packard.  We built some working prototypes before it was
> >> cancelled.  It was going to have the model number 10816.  I was the RF
> >> person, but I worked very closely with the other team members.
> >> Remembering what we had to go through to make "glassware", it is
> >> inconceivable that you could do that as a "home brew" project.  And this
> >> was the same HP facility that already made the 5065 rubidium standard.
> >> The best you could hope to do is to start with a commercial "physics
> >> package" as we called it, and make your own electronics for it.  Reading
> >> books about how rubidium standards work, etc is fine, but again, you
> >> can't home brew the glassware.
> >>
> >> ---
> >> Rick Karlquist
> >> N6RK
>
> I know a bunch of people on the Cold Atom Lab project, which is making
> Bose Einstein Condensates on ISS - they run both K and Rb (I don't know
> if it's in the same cavity).  But if you need contacts on how they made
> theirs, I can probably find some people to talk to.
>
> That project was described as "take a lab bench full of equipment and
> three post docs and turn it into a box you can take to the space
> station, push a button, and make BECs"  It was, as these things are, an
> adventure.
>
>
>
>
>
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