AMMRL: Bad fids occurred randomly on Avance 500MHz spectrometer

From: Jinghua Yu <jinghua_at_burnham.org>
Date: Thu, 15 Mar 2007 10:59:28 -0700

Dear all,

Last Nov. I noticed some bad data on our avance500, in which a couple
of the fids were corrupted (jumped suddenly, huge comparing to other
normal ones). Then it went away and the spectrometer was fine.

This happened again in Feb., during test I found at that time the p90 of
H pulse was inconsistent. The next day and on, it behaved again.

Now the problem is back. I run tcu, rcu, fcu test and all passed.

Since this problem seemed to occur quite randomly, it is hard to figure
out what was wrong.

Does this ring a bell to anyone here? I'll very grateful if you can
give me some advice and suggestions on what to check.


Thank you!


Jinghua

The Burnham Institute of Medical Research
858-646-3100, x3630
Received on Fri Mar 16 2007 - 08:49:08 MST

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