garyo at ktuu.com
Wed May 6 20:18:32 EDT 2009
Oops! I left off the "fied". Sorry.
> On Wednesday 06 May 2009 08:06 pm, Larry Will wrote:
>> Wasn't the original question about "has anyone used nitrogen instead
>> of dry air for pressurization of MW lines?
> No !
> It was about LIQUIFIED nitrogen.
>> and WHY has NO ONE answered the question - a common problem with this
>> SBE reflector.
> Possibly because most of the participants are not that
> familiar with cryogenics ?
> You should note that I did answer, with a pondering that there
> would be other problems, absent a rather sophisticated super-cooling
> refrigeration method.
> I've some limited experience with using liquified nitrogen as the
> insulation for liquified helium in MRI magnets, but not for using
> as a dielectric gas in RF lines.
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