[time-nuts] Fwd: Re: homebrew H maser

J. Forster jfor at quik.com
Wed Sep 1 22:20:43 UTC 2010


An Ion pump is a kind of getter, on steroids.

-John

=============


>
>
>>  Given the quality of vacuum the manual seems to imply, I'm guessing
>> this
>>  wont cut it.   I'll bet that even low impurity Teflon has a long
>> bakeout
>>  period.
>>
>
> Too bad they don't have some kind of "getter" to allow lower vacuum specs.
> I expect they thought of that.
>
> The thing does sound like a giant hydrogenated vacuum tube.
>
>
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