Difference between revisions of "Spendosy.m"
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| − | + | Ultrafast DOSY pulse sequence. Syntax: | |
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| − | + | fid=spendosy(spin_system,parameters,H,R,K,G,F) | |
| − | + | The following parameters are required | |
parameters.dims size of the sample in m | parameters.dims size of the sample in m | ||
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parameters.npts number of spin packets | parameters.npts number of spin packets | ||
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parameters.spins nuclei on which the sequence runs | parameters.spins nuclei on which the sequence runs | ||
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parameters.deltat timestep for acquisition | parameters.deltat timestep for acquisition | ||
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| − | parameters.npoints number of acquired points for each | + | parameters.npoints number of acquired points for each |
gradient readout | gradient readout | ||
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| − | parameters.nloops number of loop, where each loop consists of | + | parameters.nloops number of loop, where each loop consists of |
a positive and a negative readout | a positive and a negative readout | ||
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| − | parameters.offset offset | + | parameters.offset offset |
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| − | parameters.cond bondary conditions | + | parameters.cond bondary conditions |
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parameters.Ga acquisition gradient in T/m | parameters.Ga acquisition gradient in T/m | ||
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parameters.pulsenpoints number of points in the pulse shape | parameters.pulsenpoints number of points in the pulse shape | ||
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parameters.smfactor smoothing factor for the pulse | parameters.smfactor smoothing factor for the pulse | ||
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parameters.Te duration of the pulse | parameters.Te duration of the pulse | ||
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parameters.Tau duration extra dephasing gradient | parameters.Tau duration extra dephasing gradient | ||
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parameters.BW bandwidth of the pulse | parameters.BW bandwidth of the pulse | ||
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parameters.Ge encoding gradient in T/m | parameters.Ge encoding gradient in T/m | ||
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parameters.chirptype can be 'wurst' or 'smoothed' | parameters.chirptype can be 'wurst' or 'smoothed' | ||
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| − | parameters.td diffusion delay | + | parameters.td diffusion delay |
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H Fokker-Planck Hamiltonian | H Fokker-Planck Hamiltonian | ||
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R Fokker-Planck relaxation superoperator | R Fokker-Planck relaxation superoperator | ||
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K Fokker-Planck kinetics superoperator | K Fokker-Planck kinetics superoperator | ||
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G Fokker-Planck gradient superoperators | G Fokker-Planck gradient superoperators | ||
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F Fokker-Planck diffusion and flow superoperator | F Fokker-Planck diffusion and flow superoperator | ||
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| + | Note: the last five parameters are built automatically by [[imaging.m]] context function when this sequence is called from that [[Kernel_contexts|context]]. | ||
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| − | + | ''Version 1.9, authors: [[Jean-Nicolas Dumez]], [[Ilya Kuprov]], [[Ludmilla Guduff]]'' | |
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Revision as of 15:50, 5 April 2026
Ultrafast DOSY pulse sequence. Syntax:
fid=spendosy(spin_system,parameters,H,R,K,G,F)
The following parameters are required
parameters.dims size of the sample in m
parameters.npts number of spin packets
parameters.spins nuclei on which the sequence runs
parameters.deltat timestep for acquisition
parameters.npoints number of acquired points for each
gradient readout
parameters.nloops number of loop, where each loop consists of
a positive and a negative readout
parameters.offset offset
parameters.cond bondary conditions
parameters.Ga acquisition gradient in T/m
parameters.pulsenpoints number of points in the pulse shape
parameters.smfactor smoothing factor for the pulse
parameters.Te duration of the pulse
parameters.Tau duration extra dephasing gradient
parameters.BW bandwidth of the pulse
parameters.Ge encoding gradient in T/m
parameters.chirptype can be 'wurst' or 'smoothed'
parameters.td diffusion delay
H Fokker-Planck Hamiltonian
R Fokker-Planck relaxation superoperator
K Fokker-Planck kinetics superoperator
G Fokker-Planck gradient superoperators
F Fokker-Planck diffusion and flow superoperator
Note: the last five parameters are built automatically by imaging.m context function when this sequence is called from that context.
Version 1.9, authors: Jean-Nicolas Dumez, Ilya Kuprov, Ludmilla Guduff
