Difference between revisions of "Press 1d.m"

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{{DISPLAYTITLE:press_1d.m}}
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{{DISPLAYTITLE:press_1d.m}} __NOTOC__
1D PRESS (voxel selective NMR) pulse sequence.
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1D PRESS (voxel-selective NMR) pulse sequence that performs voxel-selective excitation and records an NMR spectrum; it must be called from the [[imaging.m]] context, which provides H,R,K,G, and F.
  
 
==Syntax==
 
==Syntax==
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     fid=press_1d(spin_system,parameters,H,R,K,G,F)
 
     fid=press_1d(spin_system,parameters,H,R,K,G,F)
  
==Description==
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==Parameters==
Runs voxel-selective excitation and then records an NMR spectrum. This sequence must be called from the [[imaging.m]] context, which would provide H,R,K,G, and F.
 
 
 
==Arguments==
 
  
 
     parameters.ss_grad_amp - the amplitude of slice selection  
 
     parameters.ss_grad_amp - the amplitude of slice selection  
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==See also==
 
==See also==
[[press_1d_voxel.m]], [[imaging.m]]
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[[press_voxel_1d.m]], [[imaging.m]], [[basic_1d_hard.m]], [[cpmg_dec.m]], [[epi_2d.m]], [[epi_3d.m]], [[fse.m]], [[grad_echo.m]], [[phase_enc_2d.m]], [[phase_enc_3d.m]], [[press_2d.m]], [[press_voxel_2d.m]], [[press_voxel_3d.m]], [[slice_select_1d.m]], [[spin_echo.m]], [[spiral.m]], [[udd_dec.m]], [[uhrig_times.m]], [[Built-in_experiments]], [[Imaging_module]], [[Mri_sequence_list]]
 
 
  
 
''Version 2.1, authors: [[Ilya Kuprov]], [[Ahmed Allami]]''
 
''Version 2.1, authors: [[Ilya Kuprov]], [[Ahmed Allami]]''

Latest revision as of 19:40, 6 June 2026

1D PRESS (voxel-selective NMR) pulse sequence that performs voxel-selective excitation and records an NMR spectrum; it must be called from the imaging.m context, which provides H,R,K,G, and F.

Syntax

    fid=press_1d(spin_system,parameters,H,R,K,G,F)

Parameters

   parameters.ss_grad_amp - the amplitude of slice selection 
                            gradient, T/m

   parameters.rf_frq_list - a vector of RF frequencies at each
                            pulse slice, Hz

   parameters.rf_amp_list - a vector of RF amplitudes at each
                            pulse slice, rad/s

   parameters.rf_dur_list - a vector of pulse slice durations,
                            in seconds

   parameters.rf_phi      - pulse phase at time zero

   parameters.max_rank    - maximum rank in the Fokker-Planck
                            pulse operator (2 is usually enough)

Outputs

    fid - free induction decay of the NMR spectrum

Examples

See press_example_1d.m file in examples/imaging directory.

See also

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

Version 2.1, authors: Ilya Kuprov, Ahmed Allami