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TPC: Add sector edge fluctuation correction infrastructure#15532

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matthias-kleiner wants to merge 3 commits into
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matthias-kleiner:sectorEdge
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TPC: Add sector edge fluctuation correction infrastructure#15532
matthias-kleiner wants to merge 3 commits into
AliceO2Group:devfrom
matthias-kleiner:sectorEdge

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  • New SectorEdgeFluctuations class parses a CSV table of run/time intervals and optional per-sector scaling factors stored in CCDB as CalSecEdgeInfo
  • New CCDB correction map type CalSecEdgeCorrection holds per-sector delta distortion maps, applied based on the sectors and scaling factors from SectorEdgeFluctuations
  • TPCFastSpaceChargeCorrectionHelper extended to support per-sector scaling factors
  • Correction is added to TPCScalerSpec and enabled via --enable-sec-edge-fluc-correction
  • Applied scaling factors are written to TimeSeriesITSTPC for visualisation in the TPC time series

cbmsw and others added 2 commits June 16, 2026 17:11
Add option to correct for sector edge fluctuations.
The time intervals and sectors with optional scaling factors are parsed from CSV table.
Two new CCDB types are added:
1. CalSecEdgeCorrection: the correction map with per sector delta fluctuations
2. CalSecEdgeInfo: the time intervals with optional per sector scaling factors for which the CalSecEdgeCorrection will be applied

The applied scaling factors are added to the TPC timeseries for visualisation.
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