# sat_rec.m

From Spinach Documentation Wiki

Saturation-recovery pulse sequence with analytical saturation (just the unit state as the initial condition).

## Syntax

fids=sat_rec(spin_system,parameters,H,R,K)

## Arguments

parameters.sweep spectrum sweep width, Hz parameters.npoints number of points in the FID parameters.spins nuclei on which the sequence runs, specified as {'1H'}, {'13C'}, etc. parameters.max_delay longest relaxation delay parameters.n_delays number of relaxation delays to run H - Hamiltonian matrix, received from context function R - relaxation superoperator, received from context function K - kinetics superoperator, received from context function

## Outputs

fids - free induction decays for each delay starting from zero, a matrix with individual FIDs in columns

## Examples

A simulation of a saturation-recovery experiment on strychnine (examples/nmr_liquids/sat_rec_strychnine.m) appears below - it is a stack of spectra obtained after different relaxation delays.

## Notes

The relaxation superoperator must be thermalised.

## See also

inv_rec.m, noesy.m, roesy.m, singlet.m, relaxation.m

*Version 2.3, authors: Zak El-Machachi, Ilya Kuprov*