ess.spectroscopy.indirect.kf.sample_analyzer_vector#

ess.spectroscopy.indirect.kf.sample_analyzer_vector(sample_position, analyzer_position, analyzer_transform, detector_position)[source]#

Determine the sample to analyzer-reflection-point vector per detector element

Note

The shapes of the analyzer position and orientation should be self-consistent and will likely be 1:1. There is expected to be multiple detector element positions per analyzer which can be represented as an additional dimension compared to the analyzer shapes.

Parameters:

  • sample_position (Variable) – The (probably scalar) sample position, typically vector (0, 0, 0).

  • analyzer_position (Variable) – The nominal center of the central analyzer blade surface.

  • analyzer_transform (Variable) – The transform that places and rotates the analyzer in lab space. Only the rotation is extracted to identify the crystal y-axis.

  • detector_position (Variable) – The position of the detector element.

Returns:

Variable – The vector from the sample position to the interaction point on the analyzer for each detector element.