Siemens LT2 cryostat

[Dave Schuller]

< I'm trying to set up a Siemens LT2 cryostat for low temperature studies and am
< having considerable trouble with icing.  I've built a full enclosure around the
< cryostat and the detector, and flush the enclosure with dry nitrogen prior to
<       Michael B. Berry, Ph.D.

nitrogen does not form ice.  you do not specifically state it, but may i assume
you keep a small flow of dry nitrogen during data collection?  otherwise, check
your enclosure for leaks and seal any you find.  it would also probably help to
move away from houston to a drier climate, such as arizona.