Difference between revisions of "Sp acquire.m"
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relative to the frequency of | relative to the frequency of | ||
the current rotating frame, Hz | the current rotating frame, Hz | ||
| − | + | ||
parameters.pulse_phi - phase of the soft pulse, rad | parameters.pulse_phi - phase of the soft pulse, rad | ||
| − | + | ||
parameters.pulse_pwr - power of the soft pulse, rad/s | parameters.pulse_pwr - power of the soft pulse, rad/s | ||
| − | + | ||
parameters.pulse_dur - duration of the sof pulse, s | parameters.pulse_dur - duration of the sof pulse, s | ||
| − | + | ||
parameters.pulse_rnk - Fokker-Planck cut-off rank, | parameters.pulse_rnk - Fokker-Planck cut-off rank, | ||
a small integer: start with 2 | a small integer: start with 2 | ||
and increase until the answer | and increase until the answer | ||
stops changing | stops changing | ||
| − | + | ||
parameters.offset - transmitter / receiver offset | parameters.offset - transmitter / receiver offset | ||
for the time domain pulses and | for the time domain pulses and | ||
detection, relative to the cur- | detection, relative to the cur- | ||
rent rotating frame, Hz | rent rotating frame, Hz | ||
| − | + | ||
parameters.sweep - sweep width for time domain | parameters.sweep - sweep width for time domain | ||
detection, Hz | detection, Hz | ||
| − | + | ||
parameters.npoints - number of points in the free | parameters.npoints - number of points in the free | ||
induction decay | induction decay | ||
| − | + | ||
parameters.rho0 - initial state | parameters.rho0 - initial state | ||
| − | + | ||
parameters.coil - detection state | parameters.coil - detection state | ||
| − | + | ||
parameters.method - soft puse propagation method, | parameters.method - soft puse propagation method, | ||
'expv' for Krylov propagation, | 'expv' for Krylov propagation, | ||
Revision as of 17:41, 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
