[time-nuts] It is possible to "recharge" a hydrogen maser?

[Douglas Bercich]

The Applied Science YouTube channel had an episode where he described
building a molecular sieve vacuum pump. (IIRC)


On Sat, Jul 6, 2019 at 12:06 PM EB4APL <eb4apl at gmail.com> wrote:

> The H maser that we had at NASA-DSN in the 80´s had a small H2 bottle
> which supplied it to the palladium valve, so it could be refilled. We
> never needed a refill but once we had to open the plumbing, it was
> necessary to reestablish the vacuum before opening the H2 valve. it was
> done using a mechanical pump and then a (then unknown to me) "molecular
> sieves" pump that was chilled with a bucket of liquid N2. The procedure
> was quite convoluted.
>
> Regards,
>
> Ignacio
>
>
> El 05/07/2019 a las 16:11, Luiz Paulo Damaceno escribió:
> Hi friends,
>
> We have a hydrogen maser here at the university that i work. It seems the
> hydrogen is over. This is possible? If yes, It is possible to recharge It?
>
> Best regards,
>
> Luiz.
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