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fix drich segmentation

Christopher Dilks requested to merge drich-segmentation into master

Debug dRICh cellID, and any other readout issues


  • fix buffer overflow in segmentation specification
  • adjust segmentation definition:
    • make x,y indicators unsigned
    • ensure a 16x16 matrix of pixels is defined on each sensor
    • fix x,y indicator mapping (sensor orientation issue)
  • changes validated with pixel hit distributions, from decoding cellID directly

Example pixel distribution (1 box = 1 sensor module, 1 histogram bin = 1 pixel, each sensor has 16x16 pixels): 2021-08-10-193030_380x278_scrot

Any apparent module misalignment is not real; it's an artifact of projecting spherical sensor placement to a plane

Edited by Christopher Dilks

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