Dear Colleagues,
We are in the process of designing a new facility that needs to be able to
house high-field spectrometers in the future. The magnets (800 MHz) would
be housed in the basement of a new building that is still in the planning
stage. The building design people want to save money by lowering the
ceiling height from 25 feet to 18 feet. The main entrance to the building
will be directly above the magnets where hundreds of people will be moving
around each day--presumably riding bikes, pushing metallic carts, etc.
My question to the group is how much of the vertical field should be
contained within the room to avoid artifacts in sensitive biomolecular
experiments? Right now we feel that the one gauss line should be inside the
lab because of the foot traffic above the spectrometer. Does anyone have a
high-field instrument already installed in a room with a low ceiling? If
so, do you have any problems? In other words, will we loose a 4D NOESY
experiment because someone rode a bike through the one gauss line? Any feed
back will be appreciated and a summary of the information will be posted to
the group.
Thanks,
Doug
Douglas A, Klewer
Department of Chemistry and Biochemistry
Arizona State University
PO Box 871604
Tempe, AZ 85287-1604
Phone: (480) 965-3613
dklewer_at_asu.edu
Received on Tue May 11 2004 - 18:59:22 MST