Hall-Ross¶
Description¶
Models the Q dependence of the QENS line width (Gamma (hwhm)), diffusion coefficients (D), residence times (tau) and jump lengths (l) to extract the associated long range diffusive motions of molecules.
The Hall-Ross Jump diffusion model [1] has the form:
Units of
Units of
Mean square diffusion jump length
Diffusion coefficient
Properties (fitting parameters)¶
Name |
Default |
Description |
---|---|---|
Tau |
1.0 |
Residence time |
L |
0.2 |
Standard deviation of jump lengths |
References¶
Categories: FitFunctions | QuasiElastic
Source¶
Python: HallRoss.py