Thanks for that input John.
> Le 21 nov. 2017 à 21:26, John Ponsonby a écrit :
> .
> 7. The RF discharge generates UV. This shines up the beam path and
> illuminates the bulb coating in the region where the incoming atoms first
> make contact with the bulb coating. This
gmail.com>
Sent: Tuesday, November 21, 2017 12:26:35 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] H-maser drift
There seem to be a lot of misunderstandings about H-masers. To set the record
straight note:
1. The flow of hydrogen is generally controlled using a palladium membrane,
though a pall
Thank you John. That was most informative.
dana
On Tue, Nov 21, 2017 at 2:26 PM, John Ponsonby
wrote:
> There seem to be a lot of misunderstandings about H-masers. To set the
> record straight note:
> 1. The flow of hydrogen is generally controlled using a palladium
>
There seem to be a lot of misunderstandings about H-masers. To set the record
straight note:
1. The flow of hydrogen is generally controlled using a palladium membrane,
though a palladium-silver alloy is to be preferred because it is less likely to
crack. Only hydrogen will diffuse through the
Hi, Dana.
> What does 'EFOS' mean? I hadn't heard the term before.
EFOS was a series of masers made by Oscilloquartz in Switzerland, there is a
little information on my website www.efos3.com under «about».
The manuals for those masers are also available, lots of good info for the
interested:
Corby can most likely answer some of these questions, since he also has a
maser and does maintain it. He is right now most likely still asleep,
California time.
Bert Kehren
In a message dated 11/21/2017 9:25:30 A.M. Eastern Standard Time,
att...@kinali.ch writes:
On Tue, 21 Nov 2017
On Tue, 21 Nov 2017 14:50:48 +0100
Attila Kinali wrote:
> The source for the Hydrogen atoms is usually a heated platinum
> valve (a heated plate of platinum that is thin enough that the
> Hydrogen will leak through).
Several people pointed out that the valve is made of
Hi Ole,
What does 'EFOS' mean? I hadn't heard the term before.
I think I've heard the one-second lifetime figure before.
I do hear mixed reports about where the conversion to atomic H
occurs, and consider the jury to still be out on that question.
I had thought that the volume of the storage
On Tue, 21 Nov 2017 15:31:25 +0100
Ole Petter Ronningen wrote:
> > Hehe.. Yes. It's "small" compared to the cavity. Depending on the
> > exact cavity construction, the storage space can be as small as
> > a tenth of the total cavity volume.
>
> Thats interesting, I would
>
>
> > 4.5 liters in EFOS type masers - so not *that* small. I believe other
> > masers are the same order of magnitude.
>
> Hehe.. Yes. It's "small" compared to the cavity. Depending on the
> exact cavity construction, the storage space can be as small as
> a tenth of the total cavity volume.
On Tue, 21 Nov 2017 15:14:59 +0100
Ole Petter Ronningen wrote:
> > [...] The advantage of the platinum valve
> > system is that it "generates" single atom Hydrogen, as required
> > by the maser.
>
> Picking nits here.. It was my understanding that the splitting of
On Tue, Nov 21, 2017 at 2:50 PM, Attila Kinali wrote:
> [...] The advantage of the platinum valve
> system is that it "generates" single atom Hydrogen, as required
> by the maser.
Picking nits here.. It was my understanding that the splitting of molecular
hydrogen into atomic
On Tue, 21 Nov 2017 04:24:51 -0600
Dana Whitlow wrote:
> This is an active maser, meaning a self-sustaining oscillator whose gain
> medium
> was a volume of hydrogen atoms (at low pressure) maintained in a population-
> inverted state by squirting a thin stream of
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