Hello,
A question to EPR spectrocopists out there...
We have a cryostat like this one:
http://www.bruker-biospin.com/er4112hv.html (ER4112HV - used with EMX 500
system)
I'm not able to insert (brand new) He transfer arm into the cryostat's entry
port - so cold helium never gets to the sample - it just goes from the
nozzle directly to
exhaust. Looks like there is something inside impeding proper entry of the
nozzle.
It's real hard to see anything inside since it's a long narrow tube.
Looks like the entry port is all welded as one piece and it's impossible to
take it apart - am I wrong?
Has anyone had a similar problem?
I'll appreciate any advice.
Also it would be nice to establish contacts among EPR spectroscopists - if
you are one of them - could you respond anyway even if you can't offer
anything to my vague question.
Best regards,
Evgeny.
--
Evgeny Fadeev, Ph.D.
Director, BioMolecular Spectroscopy Facility
1212 Natural Sciences 1
University of California Irvine
Irvine, CA 92697
telephone: 949-824-5842
www.physics.uci.edu/~biomolenmr
nmrwiki.org
Received on Wed Sep 17 2008 - 12:13:49 MST