[time-nuts] backfill (was: Poor man's oven)

Bob kb8tq kb8tq at n1k.org
Thu Jun 8 16:19:04 EDT 2017


If you look at the thermal conductivity vs very low pressures, the conductivity 
comes up pretty quickly from a hard vacuum. There is essentially no impact
on Q. 


> On Jun 8, 2017, at 4:03 PM, Attila Kinali <attila at kinali.ch> wrote:
> On Thu, 8 Jun 2017 06:55:07 -0400
> Bob kb8tq <kb8tq at n1k.org> wrote:
>> The simple answer is that the backfill is done because it does matter in a lot of 
>> cases.
> This raises the question, why there is backfill (just for thermal conductivity?)
> and how much it affects the Q of the crystal.
> 			Attila Kinali
> -- 
> You know, the very powerful and the very stupid have one thing in common.
> They don't alters their views to fit the facts, they alter the facts to
> fit the views, which can be uncomfortable if you happen to be one of the
> facts that needs altering.  -- The Doctor
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