ess.powder.calibration.detector_two_theta#

ess.powder.calibration.detector_two_theta(detector, source_position, sample_position, gravity)[source]#

Compute the scattering angle (two-theta) for each detector pixel.

Parameters:

  • detector (EmptyDetector[TypeVar(RunType, ess.reduce.nexus.types.SampleRun (int), ess.powder.types.VanadiumRun (int), ess.powder.types.EmptyCanRun (int))]) – Data array with detector positions.

  • source_position (Position[NXsource, TypeVar(RunType, ess.reduce.nexus.types.SampleRun (int), ess.powder.types.VanadiumRun (int), ess.powder.types.EmptyCanRun (int))]) – Position of the neutron source.

  • sample_position (Position[NXsample, TypeVar(RunType, ess.reduce.nexus.types.SampleRun (int), ess.powder.types.VanadiumRun (int), ess.powder.types.EmptyCanRun (int))]) – Position of the sample.

  • gravity (ess.reduce.nexus.types.GravityVector (scipp.Variable)) – Gravity vector.

Return type:

DetectorTwoTheta[TypeVar(RunType, ess.reduce.nexus.types.SampleRun (int), ess.powder.types.VanadiumRun (int), ess.powder.types.EmptyCanRun (int))]