Survey on magnets for 600 MHz systems

Hongjun Pan | NMR Director (pan@novell.chem.utk.edu)
Mon, 8 Feb 1999 16:08:56 EST

Dear Spinland friends:
We are planning to purchase a 600MHz system. The
performance of the magnet is one of our most concerns. I like to
make a survey about the performance of magnets of 600 MHz
systems to see the best, worst and average. I will post the
summary to this community upon request. Thank you in advance
for your input.

1. Who made your magnet and when it was
purchased?

2. What is its field drifting rate (include cryoshim drifting) of your
magnet? Is the drifting rate constant?

3. If the magnet drifts to out side of the lock range, do you change
the lock frequency or boost the magnet? how frequently do you
do this?

4. What is your comment and suggestion?


H. Pan, Ph. D. | Director of NMR Lab
Department of Chemistry
University of Tennessee

Ph: 423-974-3386
Fax: 423-974-3454