Difference between revisions of "Sp acquire.m"

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{{DISPLAYTITLE:sp_acquire.m}} __NOTOC__
 
{{DISPLAYTITLE:sp_acquire.m}} __NOTOC__
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Soft pulse followed by acquisition. The soft pulse is simulated using the Fokker-Planck formalism.
  
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Soft pulse followed by acquisition. The soft pulse is simulated using the Fokker-Planck formalism. Syntax:
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==Syntax==
  
 
     fid=sp_acquire(spin_system,parameters,H,R,K)
 
     fid=sp_acquire(spin_system,parameters,H,R,K)
  
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Parameters:
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==Parameters==
  
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     parameters.pulse_frq - frequency of the soft pulse, Hz
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     parameters.pulse_frq - frequency of the soft pulse,
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    parameters.pulse_phi - phase of the soft pulse, rad
 
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    parameters.pulse_pwr - power of the soft pulse, Hz
 
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    parameters.pulse_dur - duration of the sof pulse, s
 
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    parameters.pulse_rnk - Fokker-Planck cut-off rank
 
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    parameters.method  - method to use during the call
 
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                          to shaped_pulse_af()
 
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The last parameter should be increased until convergence is achieved in the output.
 
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==Arguments==
 
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parameters.pulse_frq - frequency of the soft pulse,
 
 
                             relative to the frequency of
 
                             relative to the frequency of
 
                             the current rotating frame, Hz
 
                             the current rotating frame, Hz
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                             ach evolution function
 
                             ach evolution function
  
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==Outputs==
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    fid - dynamics of the coil state as a function of time
  
 
==See also==
 
==See also==
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[[acquire.m]], [[hp_acquire.m]], [[rapidscan.m]], [[Built-in_experiments#General_experiments|General experiments]]
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[[acquire.m]], [[hp_acquire.m]], [[rapidscan.m]], [[cpmg.m]], [[holeburn.m]], [[impound.m]], [[relaxan.m]], [[slowpass.m]], [[traject.m]], [[Built-in_experiments]]
  
 
''Version 1.8, authors: [[Ilya Kuprov]]''
 
''Version 1.8, authors: [[Ilya Kuprov]]''

Latest revision as of 08:39, 30 August 2026

Soft pulse followed by acquisition. The soft pulse is simulated using the Fokker-Planck formalism.

Syntax

    fid=sp_acquire(spin_system,parameters,H,R,K)

Parameters

    parameters.pulse_frq - frequency of the soft pulse,
                           relative to the frequency of
                           the current rotating frame, Hz

    parameters.pulse_phi - phase of the soft pulse, rad

    parameters.pulse_pwr - power of the soft pulse, rad/s

    parameters.pulse_dur - duration of the sof pulse, s

    parameters.pulse_rnk - Fokker-Planck cut-off rank,
                           a small integer: start with 2
                           and increase until the answer
                           stops changing

    parameters.offset    - transmitter / receiver offset
                           for the time domain pulses and
                           detection, relative to the cur-
                           rent rotating frame, Hz

    parameters.sweep     - sweep width for time domain
                           detection, Hz

    parameters.npoints   - number of points in the free
                           induction decay

    parameters.rho0      - initial state

    parameters.coil      - detection state

    parameters.method    - soft puse propagation method,
                           'expv' for Krylov propagation,
                           'expm' for exponential propa-
                           gation, 'evolution' for Spin-
                           ach evolution function

Outputs

    fid - dynamics of the coil state as a function of time

See also

acquire.m, hp_acquire.m, rapidscan.m, cpmg.m, holeburn.m, impound.m, relaxan.m, slowpass.m, traject.m, Built-in_experiments

Version 1.8, authors: Ilya Kuprov