[time-nuts] Hydrogen Maser KIT! Update #1
cfharris at erols.com
Mon Nov 3 14:33:59 EST 2014
I would presume the usual reason is you want enough hydrogen
to resonate at the desired microwave frequency, but not so much
that you wreck the Q (spread the line width) with excess collisions.
Attila Kinali wrote:
> On Mon, 03 Nov 2014 00:39:24 +0100
> Magnus Danielson <magnus at rubidium.dyndns.org> wrote:
>> It is worth knowing that active masers have a span for how the hydrogen
>> in-flux will make it oscillate or not. Too little or too high, and the
>> oscillation will die off. It may be one of the things to tune up if you
>> got an older one which needs a bit of good old Love, Tender and Care.
> BTW: I always ment to ask, what makes H-Masers stop when there is
> too much hydrogen? I can understand too little H causes the system
> not having enough atoms to probe (or not getting enough energy into
> the system for active masers), but i don't understand the "too many" case.
> Attila Kinali
More information about the time-nuts