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Analysis of Road Trigger Efficiency in LL1 CheckOut Run #401388

This report details the efficiency of road triggers in LL1 CheckOut Run #401388, focusing on the observed performance across different geographical regions. With a total trigger frequency measured at 2.4 million events over 16 minutes, analysis shows that the East side exhibits better purity than the West, contrary to previous expectations. The distribution of roads, particularly those with fewer than 50 events, demonstrates noteworthy characteristics. Region-specific variations, including the overlap in panels and uniform distribution of triggers, offer insights into potential inefficiencies and unexpected observations.

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Analysis of Road Trigger Efficiency in LL1 CheckOut Run #401388

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  1. LL1 CheckOut Run

  2. This Run

  3. Run Data Information • Run# 401388, full HV, gap0 antimasked, LVL1 delay=10 (default) • Total Number of Trigger = 2.4M/16min. * Roads are counted only for nroads<50 events

  4. West vs East Purity Since number of reconstructed roads are same between East and West, the purity is better in East side. Contradictory to our expectation, west is not likely be efficient in purity. West is rather suffered from junk triggers.

  5. Number of Roads South North Only 10 ~ 20% of total roads belong to number of roads<50. However, the nroads<50 distribution looks good.

  6. Hot regions are panel overlapping region. Perhaps be expected? RadioGraph South North East / West Asymmetry in the trigger is not seen and roads are uniformly distributed.

  7. Run#401388 Efficiencies

  8. South Horizontal Efficiencies

  9. South Vertical Efficiency

  10. North Horizontal Efficiency

  11. North Vertical Efficiency

  12. LL1BLT vs. BLT-standalone

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