ess.sans.normalization.transmission_fraction#

ess.sans.normalization.transmission_fraction(sample_incident_monitor, sample_transmission_monitor, direct_incident_monitor, direct_transmission_monitor)[source]#

Approximation based on equations in CalculateTransmission documentation: (sample_transmission_monitor / direct_transmission_monitor) * (direct_incident_monitor / sample_incident_monitor)

This is equivalent to mantid.CalculateTransmission without fitting. Inputs should be wavelength-dependent.

Parameters:

sample_incident_monitor (CleanMonitor[TransmissionRun[TypeVar(ScatteringRunType, types.SampleRun (int), types.BackgroundRun (int))], types.Incident (int)]) – The incident monitor data for the sample (transmission) run.
sample_transmission_monitor (CleanMonitor[TransmissionRun[TypeVar(ScatteringRunType, types.SampleRun (int), types.BackgroundRun (int))], types.Transmission (int)]) – The transmission monitor data for the sample (transmission) run.
direct_incident_monitor (CleanMonitor[types.EmptyBeamRun (int), types.Incident (int)]) – The incident monitor data for the direct beam run.
direct_transmission_monitor (CleanMonitor[types.EmptyBeamRun (int), types.Transmission (int)]) – The transmission monitor data for the direct beam run.

Returns:

TransmissionFraction[TypeVar(ScatteringRunType, types.SampleRun (int), types.BackgroundRun (int))] – The transmission fraction computed from the monitor counts.