Difference between revisions of "Zulf abrupt.m"
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Zero-field NMR with an abrupt field drop. | Zero-field NMR with an abrupt field drop. | ||
==Syntax== | ==Syntax== | ||
| − | + | fid=zulf_abrupt(spin_system,parameters,H,R,K) | |
| + | |||
| + | ==Arguments== | ||
| + | |||
| + | .drop_field - the magnetic field that the sample should | ||
| + | be dropped to, starting from the field spe- | ||
| + | cified in sys.magnet, Tesla | ||
| + | |||
| + | .drop_time - drop time, seconds | ||
| + | |||
| + | .drop_npoints - number of discretisation points in the drop | ||
| − | + | .drop_rate - field drop rate, Hz | |
| − | + | ||
| + | .sweep - sweep width during acquisition | ||
| + | |||
| + | .npoints - number of points during acquisition | ||
| − | + | .detection - 'uniaxial' to emulate common ZULF | |
| + | hardware, 'quadrature' for proper | ||
| + | frequency sign discrimination | ||
| − | + | .flip_angle - pulse flip angle in radians for | |
| − | + | protons; for other nuclei, this | |
| − | + | will be scaled by the gamma ratio | |
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==Outputs== | ==Outputs== | ||
| − | + | fid - the free induction decay detected on the | |
| − | + | internally generated gamma-weighted state | |
| + | |||
| + | Note: this function ignores the offset parameter and makes its | ||
| + | own Hamiltonian. | ||
| + | |||
| + | ilya.kuprov@weizmann.ac.il | ||
==Examples== | ==Examples== | ||
| + | |||
See zero_field_acetonitrile.m file in examples/nmr_zerofield directory. | See zero_field_acetonitrile.m file in examples/nmr_zerofield directory. | ||
==See also== | ==See also== | ||
| + | |||
[[zerofield.m]], [[fieldscan_enlev.m]], [[fieldscan_magn.m]] | [[zerofield.m]], [[fieldscan_enlev.m]], [[fieldscan_magn.m]] | ||
''Version 2.1, authors: [[Ilya Kuprov]]'' | ''Version 2.1, authors: [[Ilya Kuprov]]'' | ||
| + | |||
| + | ==Description== | ||
| + | |||
| + | Zero-field magnetometry experiment that propagates the initial condition through an exponential drop in the external magnetic field and then runs the detection at zero field. | ||
Revision as of 15:06, 5 April 2026
Zero-field NMR with an abrupt field drop.
Syntax
fid=zulf_abrupt(spin_system,parameters,H,R,K)
Arguments
.drop_field - the magnetic field that the sample should
be dropped to, starting from the field spe-
cified in sys.magnet, Tesla
.drop_time - drop time, seconds
.drop_npoints - number of discretisation points in the drop
.drop_rate - field drop rate, Hz
.sweep - sweep width during acquisition
.npoints - number of points during acquisition
.detection - 'uniaxial' to emulate common ZULF
hardware, 'quadrature' for proper
frequency sign discrimination
.flip_angle - pulse flip angle in radians for
protons; for other nuclei, this
will be scaled by the gamma ratio
Outputs
fid - the free induction decay detected on the
internally generated gamma-weighted state
Note: this function ignores the offset parameter and makes its
own Hamiltonian.
ilya.kuprov@weizmann.ac.il
Examples
See zero_field_acetonitrile.m file in examples/nmr_zerofield directory.
See also
zerofield.m, fieldscan_enlev.m, fieldscan_magn.m
Version 2.1, authors: Ilya Kuprov
Description
Zero-field magnetometry experiment that propagates the initial condition through an exponential drop in the external magnetic field and then runs the detection at zero field.
