
New TopShim run:

version = topshim 2.4.0
date = 2025-11-17
time = 17:42:18.693
command = topshim  1d tuneaxyz

FINE SHIMMING

Parameters:

probe = Z108618_0305
solvent = CDCl3
shim nucleus = 2H
nucleus optimised for = 1H
o1p (from lock) = 7.24 ppm

Results:


1D Shimming:
Low S/N encountered. The acquisition parameters will be changed to improve this issue.
echo time must be reduced
Iteration  1: FWHM Before= 0.3 Hz, Target= 0.3 Hz, After= 0.7 Hz
Iteration  2: FWHM Before= 0.7 Hz, Target= 0.9 Hz, After= 1.2 Hz
Iteration  3: FWHM Before= 1.2 Hz, Target= 0.3 Hz, After= 0.5 Hz
Iteration  4: FWHM Before= 0.5 Hz, Target= 0.3 Hz, After= 0.6 Hz
Iteration  5: FWHM Before= 0.6 Hz, Target= 0.2 Hz, After= 0.6 Hz
Iteration  6: FWHM Before= 0.6 Hz, Target= 0.3 Hz, After= 0.5 Hz
Iteration  7: FWHM Before= 0.5 Hz, Target= 1.7 Hz, After= 0.6 Hz
Iteration  8: FWHM Before= 0.6 Hz, Target= 0.3 Hz, After= 1.6 Hz
Iteration  9: FWHM Before= 1.6 Hz, Target= 0.3 Hz, After= 0.7 Hz
Iteration 10: FWHM Before= 0.7 Hz, Target= 0.5 Hz, After= 1.3 Hz
Iteration 11: FWHM Before= 1.3 Hz, Target= 0.5 Hz, After= 0.3 Hz
Iteration 12: FWHM Before= 0.3 Hz, Target= 1.0 Hz, After= 1.1 Hz
Iteration 13: FWHM Before= 1.1 Hz, Target= 0.3 Hz, After= 0.4 Hz
Iteration 14: FWHM Before= 0.4 Hz, Target= 0.3 Hz, After= 0.7 Hz
Iteration 15: FWHM Before= 0.7 Hz, Target= 0.3 Hz, After= 1.2 Hz
RMSD between target and map above threshold but maximum number of iterations reached. Halting shimming.

Using the best result as the final shim state.

Lineshape quality factor (1D spectrum, spinning) = 0.712


Performing tune after shimming
tune lock level increase = 1.5

shim changes: 
Z	-299
Z2	-1598
Z3	-943
Z4	-16820
Z5	-3014

duration = 7 min 15 sec
completed successfully
finished Mon Nov 17 17:49:32 2025


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