FickDiffusionSQE¶
Description¶
This fitting function models the dynamic structure factor for a particle undergoing jump diffusion using Fick’s law for diffusion [1].
where:
- Intensity scaling, a fit parameter - diffusion coefficient, a fit parameter - Centre of peak, a fit parameter - Momentum transfer, an attribute (non-fitting)
Attributes (non-fitting parameters)¶
Name |
Type |
Default |
Description |
---|---|---|---|
Q |
|||
WorkspaceIndex |
Properties (fitting parameters)¶
Name |
Default |
Description |
---|---|---|
Height |
1.0 |
scaling factor |
Centre |
0.0 |
Shift along the X-axis |
DiffCoeff |
2.3 |
Diffusion coefficient (10^(-5)cm^2/s) |
References¶
Categories: FitFunctions | QuasiElastic
Source¶
C++ header: FickDiffusionSQE.h
C++ source: FickDiffusionSQE.cpp