TeixeiraWaterIqt¶
Description¶
It models the intermediate scattering function for the inelastic spectra of water molecules, based on Teixeira’s model [1].
where:
are the spherical bessel functions of order n. is the amplitude. is the spectrum linewidth. is the relaxation time associated with rotation diffusion. is the elastic momentum transfer, by default, but should be set to a correct value prior to fitting. is the molecular radius of rotation, set by default to .
Units of
Units of
Attributes (non-fitting parameters)¶
Name |
Type |
Default |
Description |
---|---|---|---|
Q |
|||
a |
Properties (fitting parameters)¶
Name |
Default |
Description |
---|---|---|
Amp |
1.0 |
Amplitude |
Tau1 |
0.05 |
Relaxation time |
Gamma |
1.2 |
Line Width |
References¶
Categories: FitFunctions | QuasiElastic
Source¶
Python: TeixeiraWaterIqt.py