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ThermalNeutronBk2BkExpBeta¶

Description¶

ThermalNeutronBk2BkExpBeta is a function to calculate $\beta(d_h)$ of ThermalNeutronBk2BkExpConvPVoigt. It is defined as

$\beta(d_h) = \left(n\beta_0 + \beta_1 d_h + (1-n)\beta_0^t - \frac{\beta_1^t}{d_h}\right)^{-1}$

where

$n = \frac{1}{2} \mathit{erfc}(\text{Width}(t_\text{cross} - d^{-1}))$

and

$erfc(x) = 1-erf(x) = 1-\frac{2}{\sqrt{\pi}}\int_0^xe^{-u^2}du.$

Categories: FitFunctions | General

C++ header: ThermalNeutronBk2BkExpBeta.h (last modified: 2020-04-07)

C++ source: ThermalNeutronBk2BkExpBeta.cpp (last modified: 2020-03-20)