Difference between revisions of "Sp acquire.m"

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The last parameter should be increased until convergence is achieved in the output.
 
The last parameter should be increased until convergence is achieved in the output.
  
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''New in Version 1.8, authors: [[Ilya Kuprov]]''
 
  
 
==Arguments==
 
==Arguments==
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                             ach evolution function
 
                             ach evolution function
  
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ilya.kuprov@weizmann.ac.il
 
  
 
==See also==
 
==See also==
 
[[acquire.m]], [[hp_acquire.m]], [[rapidscan.m]], [[Built-in_experiments#General_experiments|General experiments]]
 
[[acquire.m]], [[hp_acquire.m]], [[rapidscan.m]], [[Built-in_experiments#General_experiments|General experiments]]
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''Version 1.8, authors: [[Ilya Kuprov]]''

Revision as of 17:26, 5 June 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, Hz

    parameters.pulse_phi - phase of the soft pulse, rad

    parameters.pulse_pwr - power of the soft pulse, Hz

    parameters.pulse_dur - duration of the sof pulse, s

    parameters.pulse_rnk - Fokker-Planck cut-off rank

    parameters.method   - method to use during the call
                          to shaped_pulse_af()

The last parameter should be increased until convergence is achieved in the output.


Arguments

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


See also

acquire.m, hp_acquire.m, rapidscan.m, General experiments

Version 1.8, authors: Ilya Kuprov