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@Tom-Willemsen Tom-Willemsen commented Dec 2, 2025

Description of work

Adds infrastructure for angle-mapping within a DAE reducer.

This is useful for reflectometry Psi scans on instruments with linear detectors (POLREF, OFFSPEC), which are interested in minimising the fitted witch of a beam profile on their detector (by scanning over Psi, which affects the beam profile).

See documentation in this PR for details.

Ticket

#286

Acceptance criteria

  • Pull request title is understandable for a user (e.g. scientist) reading the release notes. The PR title should be a short description of the change from a user perspective.
  • Pull request has appropriate labels for automatic release-notes generation

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Documentation & diagrams inside PR

@Tom-Willemsen Tom-Willemsen added the bluesky-Semver-Minor New functionality / back-compatible changes label Dec 2, 2025
@Tom-Willemsen Tom-Willemsen changed the title 286 psi scan Implement AngleMappingReducer to support Psi scanning on reflectometers with linear detectors (OFFSPEC, POLREF) Dec 2, 2025
@rerpha rerpha self-requested a review December 4, 2025 11:16
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These scans worked on OFFSPEC, but needed pretty comparable count times to a 'traditional' one-pixel scan. Scientists are currently thinking of ways to improve this (and taking data to help inform it)

@rerpha rerpha merged commit def10be into main Dec 4, 2025
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@rerpha rerpha deleted the 286_psi_scan branch December 4, 2025 18:40
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3 participants