Difference between revisions of "Psyche.m"
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| − | PSYCHE pulse sequence | + | {{DISPLAYTITLE:psyche.m}} __NOTOC__ |
| + | PSYCHE pure-shift NMR pulse sequence. | ||
==Syntax== | ==Syntax== | ||
| − | fid= | + | fid=psyche(spin_system,parameters,H,R,K,G,F) |
| − | == | + | ==Parameters== |
parameters.rho0 initial state | parameters.rho0 initial state | ||
| − | + | ||
parameters.coil detection state | parameters.coil detection state | ||
| − | + | ||
parameters.spins nuclei on which the sequence runs | parameters.spins nuclei on which the sequence runs | ||
| − | + | ||
parameters.g_amp gradient amplitude (T/m) | parameters.g_amp gradient amplitude (T/m) | ||
| − | + | ||
parameters.dims size of the sample (m) | parameters.dims size of the sample (m) | ||
| − | + | ||
parameters.npts number of discretization points in the grid | parameters.npts number of discretization points in the grid | ||
| − | + | ||
| − | + | parameters.npoints two-element point count array for the two | |
| − | + | evolution dimensions | |
| − | parameters.npoints | + | |
| − | |||
| − | |||
| − | |||
parameters.diff diffusion constant (m^2/s) | parameters.diff diffusion constant (m^2/s) | ||
| − | + | ||
| + | parameters.pulsenpoints number of points in the chirp pulse waveform | ||
| + | |||
| + | parameters.duration chirp pulse duration, seconds | ||
| + | |||
| + | parameters.bandwidth chirp pulse bandwidth, Hz | ||
| + | |||
| + | parameters.smfactor chirp smoothing factor | ||
| + | |||
| + | parameters.chirptype chirp pulse type: 'wurst', 'wurst-adaptive', | ||
| + | 'smoothed', 'smoothed-adaptive', 'saltire', | ||
| + | or 'saltire-adaptive' | ||
| + | |||
| + | parameters.beta chirp pulse flip angle, degrees | ||
| + | |||
| + | parameters.timestep1 first evolution timestep, seconds | ||
| + | |||
| + | parameters.timestep2 second evolution timestep, seconds | ||
| + | |||
| + | parameters.delta diffusion delay, seconds | ||
| + | |||
H Fokker-Planck Hamiltonian | H Fokker-Planck Hamiltonian | ||
| − | + | ||
R Fokker-Planck relaxation superoperator | R Fokker-Planck relaxation superoperator | ||
| − | + | ||
K Fokker-Planck kinetics superoperator | K Fokker-Planck kinetics superoperator | ||
| − | + | ||
G Fokker-Planck gradient superoperators | G Fokker-Planck gradient superoperators | ||
| − | + | ||
F Fokker-Planck diffusion and flow superoperator | F Fokker-Planck diffusion and flow superoperator | ||
| − | == | + | ==Outputs== |
| − | + | fid - a PSYCHE free induction decay as a 2D array | |
==Notes== | ==Notes== | ||
| Line 45: | Line 63: | ||
==See also== | ==See also== | ||
| − | [[step.m]], [[evolution.m]], [[coherence.m]], [[ | + | [[step.m]], [[evolution.m]], [[coherence.m]], [[chirp_pulse.m]], [[shaped_pulse_xy.m]], [[imaging.m]], [[dosy_oneshot.m]], [[idosyzs.m]], [[psycosy.m]], [[spencosy.m]], [[spendosy.m]], [[spendosycosy.m]], [[st_ideal.m]], [[ufmq.m]], [[Built-in_experiments]], [[Kernel_functions]] |
| − | ''Version 1.10, authors:[[Mohammadali Foroozandeh ]], [[Maria Grazia Concilio]]'' | + | ''Version 1.10, authors: [[Mohammadali Foroozandeh]], [[Maria Grazia Concilio]]'' |
Latest revision as of 19:40, 6 June 2026
PSYCHE pure-shift NMR pulse sequence.
Syntax
fid=psyche(spin_system,parameters,H,R,K,G,F)
Parameters
parameters.rho0 initial state
parameters.coil detection state
parameters.spins nuclei on which the sequence runs
parameters.g_amp gradient amplitude (T/m)
parameters.dims size of the sample (m)
parameters.npts number of discretization points in the grid
parameters.npoints two-element point count array for the two
evolution dimensions
parameters.diff diffusion constant (m^2/s)
parameters.pulsenpoints number of points in the chirp pulse waveform
parameters.duration chirp pulse duration, seconds
parameters.bandwidth chirp pulse bandwidth, Hz
parameters.smfactor chirp smoothing factor
parameters.chirptype chirp pulse type: 'wurst', 'wurst-adaptive',
'smoothed', 'smoothed-adaptive', 'saltire',
or 'saltire-adaptive'
parameters.beta chirp pulse flip angle, degrees
parameters.timestep1 first evolution timestep, seconds
parameters.timestep2 second evolution timestep, seconds
parameters.delta diffusion delay, seconds
H Fokker-Planck Hamiltonian
R Fokker-Planck relaxation superoperator
K Fokker-Planck kinetics superoperator
G Fokker-Planck gradient superoperators
F Fokker-Planck diffusion and flow superoperator
Outputs
fid - a PSYCHE free induction decay as a 2D array
Notes
The last five parameters are built automatically by imaging.m context function when this sequence is called from that context.
See also
step.m, evolution.m, coherence.m, chirp_pulse.m, shaped_pulse_xy.m, imaging.m, dosy_oneshot.m, idosyzs.m, psycosy.m, spencosy.m, spendosy.m, spendosycosy.m, st_ideal.m, ufmq.m, Built-in_experiments, Kernel_functions
Version 1.10, authors: Mohammadali Foroozandeh, Maria Grazia Concilio
