Z1 r.t. shim drifting

From: Ghiviriga,Ion <ion_at_chem.ufl.edu>
Date: Wed, 19 May 2021 15:32:03 +0000

Dear AMMRLers,

For the past two years, we have seen an almost linear drift in the z1, as we
were doing maintenance shimming:

[cid:2c2a7aa7-e8e3-43a7-ab42-5d1f5d73f58e]

Now we are reaching the end of z1, and have to take action. Before messing
with my luck I want to confirm with you that rt z1 drifts because cryoshim
z1 drifts (possibly a joint going bad) and that the fix is getting the current
lead into the magnet and cryoshiming. I can't think of any other possible
cause.

Second, can you recommend someone we could hire for this job?

With best wishes,
Ion

Ion Ghiviriga
Director of the Center for NMR Spectroscopy
University of Florida, Chemistry Department
Gainesville, Fl 32611-7200

Received on Wed May 19 2021 - 05:31:46 MST