Baseline
 

• Hit counting method to Tevatron and CDF
• Use sum(hits) for East and West as estimator
• Hits are defined by Xilinx threshold and show directly in DPM input
• Use high threshold to pickup single "pp" (primary particle)
• Start with 50% of expected peak
• Use formula from GEANT simulation  Lum=f(N_hits)
• Use CDFCLK to strobe the Dual Port Memory
• Need to find offset between B0 signal and its corresponding data
• Use LED to estimate, and real data for final offset
• We will have data for abort gap also - for background studies
• Z centroid for Tevatron  "cogging" studies
• Use East/West coincidence and asymmetry rate algorithm from GEANT simulation
• Implement an ACNET variable for Z centroid

• Empty crossing method in parallel to "hit counting"
• Calculate fraction of crossings with no hits
• has to be same "hit" definition because of single Xilinx threshold
• Calculate Luminosity based on formula for empty crossings
• Need acceptance from simulation
• Output luminosity per bunch to ASCI file, together with "hit method" luminosity