Difference between revisions of "Zerofield.m"
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| − | + | {{DISPLAYTITLE:function.m}} __NOTOC__ | |
| + | Budker group style gamma-weighted pulse-acquire sequence in zero field. The pre-polarisation magnet at high temperature followed by a pulse are emulated by summing up L+ states with the weights equal to the magnetigyric ratio of each spin. | ||
| − | + | ==Syntax== | |
| − | + | fid=zerofield(spin_system,parameters,H,R,K) | |
| − | |||
| − | |||
| − | + | ==Arguments== | |
| − | + | parameters.sweep - the width of the spectral window (Hz) | |
| + | |||
| + | parameters.npoints - number time steps in the simulation | ||
| + | |||
| + | H - Hamiltonian matrix, received from context function | ||
| + | |||
| + | R - relaxation superoperator, received from context function | ||
| + | |||
| + | K - kinetics superoperator, received from context function | ||
| − | + | ==Outputs== | |
| + | |||
| + | fid - free induction decay | ||
| + | |||
| + | ==Examples== | ||
| + | Multiple examples are avilable in examples/nmr_zerofield directory. ZULF simulation for pyridine, matching Figure 3 from http://dx.doi.org/10.1021/ja2112405, is reproduced below. | ||
| + | |||
| + | [[File:zulf.png]] | ||
| + | |||
| + | ==See also== | ||
| + | [[zulf_abrupt.m]], [[acquire.m]], [[assume.m]] | ||
| + | |||
| + | |||
| + | ''Version 2.4, authors: [[Ilya Kuprov]]'' | ||
Revision as of 10:45, 9 July 2019
Budker group style gamma-weighted pulse-acquire sequence in zero field. The pre-polarisation magnet at high temperature followed by a pulse are emulated by summing up L+ states with the weights equal to the magnetigyric ratio of each spin.
Syntax
fid=zerofield(spin_system,parameters,H,R,K)
Arguments
parameters.sweep - the width of the spectral window (Hz) parameters.npoints - number time steps in the simulation H - Hamiltonian matrix, received from context function R - relaxation superoperator, received from context function K - kinetics superoperator, received from context function
Outputs
fid - free induction decay
Examples
Multiple examples are avilable in examples/nmr_zerofield directory. ZULF simulation for pyridine, matching Figure 3 from http://dx.doi.org/10.1021/ja2112405, is reproduced below.
See also
zulf_abrupt.m, acquire.m, assume.m
Version 2.4, authors: Ilya Kuprov
