Dear All:
I know certain issues have been addressed about the impact of new
utilities/services near existing NMR laboratories, but I'm not sure this one
has been discussed exactly. If anyone has any real-world experience that
might help us to understand the possible impact of this I would appreciate
hearing from you. I will, of course, summarize any useful information that
I receive.
Here is the issue:
Just outside our 800MHz NMR facility, they plan to install a new
supercomputing facility that demands a lot of power. Due to the location,
the current proposed plans have them running the AC power feed just outside
the NMR lab. My concern is EMI interference that would be picked up in
various ways by the NMR console, probe, cables, .etc. The power lines will
be carrying 480 VAC, 1000kVa, 1200 Amps. One of the plans has the power
lines going through the building just behind the wall where our console is
located, and another would site them on the opposite side (maybe 50 feet
from the magnet, and 65 feet from the console).
1) Does anyone have any experience that might suggest whether or not
this will be a problem? I have visions of all kinds of 60/120 cycle
interference showing up in strange ways in our data.
2) Does anyone have specific ideas how we could somehow test the
impact, in terms of interference, before they actually build this thing
because after the fact it will be too late?
The combined body of knowledge of this group is mind boggling, so I look
forward to hearing from you. I have already passed this along to Varian,
hoping that they might be also able to assist us in dealing with this.
Thank you in advance,
-Rich Shoemaker
---
Richard K. Shoemaker, Ph.D., Director, NMR Spectroscopy Facility
University of Colorado at Boulder
Phone: (303) 492-7062 Fax: (303) 492-5894
E-Mail: <mailto:Richard.Shoemaker_at_Colorado.edu>
Richard.Shoemaker_at_Colorado.edu
Web: http://chemnmr.colorado.edu/rshoe
Received on Thu Jan 21 2010 - 15:01:05 MST