Difference between revisions of "Inv rec.m"

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{{DISPLAYTITLE:inv_rec.m}} __NOTOC__
 
{{DISPLAYTITLE:inv_rec.m}} __NOTOC__
 
 
Inversion-recovery pulse sequence.
 
Inversion-recovery pulse sequence.
  
 
==Syntax==
 
==Syntax==
  
fids=inv_rec(spin_system,parameters,H,R,K)
+
    fids=inv_rec(spin_system,parameters,H,R,K)
  
 
==Arguments==
 
==Arguments==
  
parameters.sweep              spectrum sweep width, Hz
+
    parameters.sweep              spectrum sweep width, Hz
 
   
 
   
 
     parameters.npoints            number of points in the FID
 
     parameters.npoints            number of points in the FID
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==Outputs==
 
==Outputs==
  
fids  - free induction decays for each delay starting from zero,
+
    fids  - free induction decays for each delay starting from zero,
 
             a matrix with individual FIDs in columns
 
             a matrix with individual FIDs in columns
 
Note: the relaxation superoperator must be thermalised.
 
 
Zak El-Machachi
 
ilya.kuprov@weizmann.ac.il
 
  
 
==Examples==
 
==Examples==
 
 
A simulation of a inversion-recovery experiment on strychnine (examples/nmr_liquids/sat_rec_strychnine.m) appears below - it is a stack of spectra obtained after different relaxation delays.
 
A simulation of a inversion-recovery experiment on strychnine (examples/nmr_liquids/sat_rec_strychnine.m) appears below - it is a stack of spectra obtained after different relaxation delays.
  
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==Notes==
 
==Notes==
 
 
The relaxation superoperator must be thermalised.
 
The relaxation superoperator must be thermalised.
  
 
==See also==
 
==See also==
 
 
[[sat_rec.m]], [[noesy.m]], [[roesy.m]], [[singlet.m]], [[relaxation.m]]
 
[[sat_rec.m]], [[noesy.m]], [[roesy.m]], [[singlet.m]], [[relaxation.m]]
  
  
 
''Version 2.3, authors: [[Zak El-Machachi]], [[Ilya Kuprov]]''
 
''Version 2.3, authors: [[Zak El-Machachi]], [[Ilya Kuprov]]''

Revision as of 15:49, 5 April 2026

Inversion-recovery pulse sequence.

Syntax

    fids=inv_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 inversion-recovery experiment on strychnine (examples/nmr_liquids/sat_rec_strychnine.m) appears below - it is a stack of spectra obtained after different relaxation delays.

Inv rec strychnine.png

Notes

The relaxation superoperator must be thermalised.

See also

sat_rec.m, noesy.m, roesy.m, singlet.m, relaxation.m


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