Difference between revisions of "Press 1d.m"
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Runs voxel-selective excitation and then records an NMR spectrum. This sequence must be called from the [[imaging.m]] context, which would provide H,R,K,G, and F. | Runs voxel-selective excitation and then records an NMR spectrum. This sequence must be called from the [[imaging.m]] context, which would provide H,R,K,G, and F. | ||
| − | == | + | ==Parameters== |
parameters.ss_grad_amp - the amplitude of slice selection | parameters.ss_grad_amp - the amplitude of slice selection | ||
Revision as of 18:51, 5 June 2026
1D PRESS (voxel selective NMR) pulse sequence.
Syntax
fid=press_1d(spin_system,parameters,H,R,K,G,F)
Description
Runs voxel-selective excitation and then records an NMR spectrum. This sequence must be called from the imaging.m context, which would provide H,R,K,G, and F.
Parameters
parameters.ss_grad_amp - the amplitude of slice selection
gradient, T/m
parameters.rf_frq_list - a vector of RF frequencies at each
pulse slice, Hz
parameters.rf_amp_list - a vector of RF amplitudes at each
pulse slice, rad/s
parameters.rf_dur_list - a vector of pulse slice durations,
in seconds
parameters.rf_phi - pulse phase at time zero
parameters.max_rank - maximum rank in the Fokker-Planck
pulse operator (2 is usually enough)
Outputs
fid - free induction decay of the NMR spectrum
Examples
See press_example_1d.m file in examples/imaging directory.
See also
Version 2.1, authors: Ilya Kuprov, Ahmed Allami
