udd_dec.m

Effect of the Uhrig Dynamic Decoupling (UDD) pulse sequence on an MRI phantom; the function runs the UDD sequence, projects out the user-specified spin state, returns the corresponding image, and must be called from the imaging.m context, which provides H,R,K,G, and F.

Syntax

    mri=udd_dec(spin_system,parameters,H,R,K,G,F)

Parameters

   parameters.dec_time     - total duration of the sequence

   parameters.npulses      - number of pulses in the sequence,
                             excluding the first pi/2 pulse

   parameters.spins        - nuclei on which the sequence
                             is to act, e.g. {'1H'}

Outputs

   mri  - amplitude of the detection state at each point of the
          sample

Examples

See bright_fat_effect_udd.m file in examples/imaging directory.

Notes

The spin state to be observed should be specified in parameters.coil_st, the coil phantom is ignored.

See also

cpmg_dec.m, decouple.m, uhrig_times.m, imaging.m, basic_1d_hard.m, epi_2d.m, epi_3d.m, fse.m, grad_echo.m, phase_enc_2d.m, phase_enc_3d.m, press_1d.m, press_2d.m, press_voxel_1d.m, press_voxel_2d.m, press_voxel_3d.m, slice_select_1d.m, spin_echo.m, spiral.m, Built-in_experiments, Imaging_module, Mri_sequence_list

Version 2.1, authors: Ilya Kuprov, Ahmed Allami