ess.reduce.polarization.he3.get_he3_transmission_incoming_unpolarized_from_fit_to_direct_beam

ess.reduce.polarization.he3.get_he3_transmission_incoming_unpolarized_from_fit_to_direct_beam(transmission_fraction, opacity_function, transmission_empty_glass)

Transmission function for a given cell, with unpolarized incoming beam.

This is composed from the opacity-function and the polarization-function. The implementation fits a time- and wavelength-dependent equation and returns the fitted T(t, lambda).

DB_pol/DB = T_E * cosh(O(lambda)*P(t))*exp(-O(lambda))

Return type:

TransmissionFunction[TypeVar(PolarizingElement, polarization.types.Analyzer (str), polarization.types.Polarizer (str))]