
New TopShim run:

version = topshim 4.4.0
date = 2026-09-25
time = 10:04:03.438
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= 0.8 Hz, Target= 0.2 Hz, After=25.1 Hz
Iteration 2: FWHM Before=25.1 Hz, Target= 0.2 Hz, After=11.0 Hz
Iteration 3: FWHM Before=11.0 Hz, Target= 0.4 Hz, After= 4.5 Hz
Iteration 4: FWHM Before= 4.5 Hz, Target= 0.8 Hz, After= 0.6 Hz
Iteration 5: FWHM Before= 0.6 Hz, Target= 1.3 Hz, After=42.2 Hz
Using the best result as the final shim state.

Lineshape quality factor (1D spectrum, MAS) = 3.52


Unusually slow convergence behaviour detected during shimming.
This may be indicative of an incorrect mounting angle being used!
1. Please perform 'topshim calreset'
2. Restart topshim
3. Enter the correct value for the mounting angle


MAS shims:
Z'	-16457
Z2'	+90443
Z3'	-12104
Z4'	+0


duration = 1 min 42 sec
completed successfully
finished Fri Sep 25 10:05:45 2026


========================================================================

New TopShim run:

version = topshim 4.4.0
date = 2026-09-25
time = 10:13:52.508
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= 4.9 Hz, Target= 1.2 Hz, After= 0.2 Hz
Iteration 2: FWHM Before= 0.2 Hz, Target= 1.3 Hz, After= 0.3 Hz
Iteration 3: FWHM Before= 0.3 Hz, Target= 1.4 Hz, After= 0.5 Hz
Iteration 4: FWHM Before= 0.5 Hz, Target= 2.0 Hz, After=331.4 Hz
Diverging behaviour detected. Shimming was aborted.
Using the best result as the final shim state.

Lineshape quality factor (1D spectrum, MAS) = 1.67


MAS shims:
Z'	-15790
Z2'	+88547
Z3'	-9271
Z4'	+0


duration = 1 min 31 sec
completed successfully
finished Fri Sep 25 10:15:23 2026


========================================================================
