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  1. Continue to calculate and fill the AcdTkrHitPoca for all combinations of tracks and ACD tiles/ribbons with signals
  2. Store the new information with the existing AcdTkrHitPoca structures in the recon file.  Those structures are designed to store all the distance information.
  3. This means that the list of AcdTkrHitPocas will include both cases where the relevent detector has a signal and those where it does not.
  4. Add new data fields to the AcdTkrHitPoca structure to store the MIP equivalent signal seen in the ACD detector element.  This will allow us to distiguish quickly between tiles near the track that have signal and those that don't.
  5. Update AnalysisNtuple to ignore those AcdTkrHitPoca's that have no signal when filling merit variables, this will insure that the merit variables are identical to what we have now.
  6.  Improve the logic in AnalysisNtuple to fill new merit variables that take into account signal size, distance of closest approach and track quality to find the tile/track combination most likely to VETO the event

    Here's a copy of the ACD Tile Map for posterity...

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