Re: dripping N2 ports

marat@CC.UManitoba.CA
Fri, 15 Oct 93 10:25:01 CDT

I would think that the much larger size (resulting, some would argue,
in superior performance) of the Spectrospin and Oxford magnets compared with
the "R2D2" style would result in a higher N2 boil-off and
therefore more condensation. As long as you don't get water
sitting in the bottom flange of the magnet and causing corrosion
problems, is this anything more than a minor annoyance?

We have found that wrapping some absorbant material around the
N2 vents will usually keep water from running down the
magnet. On our AMX 500 where all three vents are open, there never
seems to be enough ice build-up to result in water on the magnet
flange - at least up here in dry sub-arctic central Canada.

-- 
Kirk Marat
NMR Facility Manager
Dept of Chemistry / Prairie Regional NMR Centre
University of Manitoba, Winnipeg, MB, CANADA, R3T 2N2


I used to think I was indecisive, but now I'm not so sure.