psyche.m
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
