
New TopShim run:

version = topshim 2.4.0
date = 2025-11-25
time = 19:21:23.364
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= 0.4 Hz, Target= 0.3 Hz, After= 1.1 Hz
Iteration  2: FWHM Before= 1.1 Hz, Target= 0.4 Hz, After= 0.3 Hz
Iteration  3: FWHM Before= 0.3 Hz, Target= 0.5 Hz, After= 1.1 Hz
Iteration  4: FWHM Before= 1.1 Hz, Target= 0.3 Hz, After= 0.4 Hz
Iteration  5: FWHM Before= 0.4 Hz, Target= 1.4 Hz, After= 2.4 Hz
Iteration  6: FWHM Before= 2.4 Hz, Target= 0.3 Hz, After= 2.5 Hz
Iteration  7: FWHM Before= 2.5 Hz, Target= 0.2 Hz, After= 0.6 Hz
Iteration  8: FWHM Before= 0.6 Hz, Target= 0.3 Hz, After= 0.3 Hz
Iteration  9: FWHM Before= 0.3 Hz, Target= 0.3 Hz
Shim succeeded

Lineshape quality factor (1D spectrum, spinning) = 0.619


Performing tune after shimming
tune lock level increase = 2.2

shim changes: 
Z	+189
Z2	-1503
Z3	+1038
Z4	-15468
Z5	+3844

duration = 5 min 7 sec
completed successfully
finished Tue Nov 25 19:26:28 2025


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