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ThermalNeutronDtoTOFFunction¶
Description¶
ThermalNeutronDtoTOFFunction is a function to calculate TOF from d-spacing values for ThermalNeutronBk2BkExpConvPVoigt. It is defined as
\[TOF = n(zero + dtt1 \cdot dh)+(1-n)(zero_t + dtt1t\cdot dh - \frac{dtt2t}{dh})\]
where
\[n = \frac{1}{2} \mathit{erfc}(\text{Width}(t_\text{cross} - d^{-1})).\]
Properties (fitting parameters)¶
Name |
Default |
Description |
|---|---|---|
Dtt1 |
1.0 |
|
Dtt1t |
1.0 |
|
Dtt2t |
1.0 |
|
Zero |
0.0 |
|
Zerot |
0.0 |
|
Width |
1.0 |
|
Tcross |
1.0 |
Categories: FitFunctions | General
Source¶
C++ header: ThermalNeutronDtoTOFFunction.h
C++ source: ThermalNeutronDtoTOFFunction.cpp