Set uncertainties more correctly #83
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This avoids broadcasting the addition across many tof channels/pixels
rerpha
reviewed
Mar 31, 2025
rerpha
approved these changes
Apr 14, 2025
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Invalid normalization should crash a scan - there's really no way around this, we should not "pretend" to be able to do it. Have checked with scientists that this makes sense to them and they agreed an exception is better than giving "some" data which would be meaningless. In real life, monitor counts being zero means something is fundamentally wrong with the beamline (shutter closed, monitor not in, etc) so the scan can never really be valid in that state.
Also move the variance addition later - after summing all the detectors - basically do it at the last level possible when our units are still "counts". This avoids broadcasting the "extra" variance across multiple tof channels / pixels.