
New TopShim run:

version = topshim 4.4.0
date = 2026-09-22
time = 16:05:17.274
command = topshim 1d optsolvent coil=1H optsolvent tuneaoff hrmas

HRMAS SHIMMING

Parameters:

probe = Z180004_0001
angle PHI = 270.5 degree
solvent = H2O+D2O
shim nucleus = 1H
nucleus optimised for = 1H
o1p (from lock) = 4.70 ppm

Results:

Iteration 1: FWHM Before= 0.5 Hz, Target= 0.3 Hz, After= 0.2 Hz
Iteration 2: FWHM Before= 0.2 Hz, Target= 0.3 Hz, After= 0.3 Hz
Iteration 3: FWHM Before= 0.3 Hz, Target= 0.3 Hz, After= 0.4 Hz
Iteration 4: FWHM Before= 0.4 Hz, Target= 0.3 Hz, After=221.2 Hz
Diverging behaviour detected. Shimming was aborted.
Rejecting all results and reverting to the initial shim state.

Lineshape quality factor (1D spectrum, MAS) = 1.43


MAS shims:
Z'	-16000
Z2'	+92154
Z3'	-46374
Z4'	+0


duration = 1 min 33 sec
completed successfully
finished Tue Sep 22 16:06:49 2026


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