The first 1,300,000 events from this run are analyzed. Configuration was "production2009_200Gev_Single / Physics"

The clusters are generated from Qtdata. These clusters differ from the "appended/internal" L1 DSM input clusters in two aspects. 1. Qt8 sums are NOT truncated. 2. The perimeter high towers are ignored according to Eleanor's table. 

Total of 40 clusters, one for each Qt32 board, are compared to the threshold.

LED suppression is done by looking at the number of channels with ADC>10, and cutting at 800.

Trigger threshold for Small cells seems to have been lowered to ~31. Trigger rate for FMS fast increased to ~19%.

It also looks like most of the hottest cells from yesterday have been cooled down. 

Number of trigger breakdown per module

North Large: Total 16581 triggers, top 5 cells produced 27% of the NL triggers.

South Large: Total 68727 triggers, top 5 cells produced 60% of the SL triggers. There is one cell, ch282, that generated over 29000 triggers. 

North Small: Total 40562 triggers, top 5 cells produced 29% of the NS triggers.

South Small: Total 47299 triggers, top 5 cells produced 17% of the SS triggers.

Overall, 50% of the trigger came from large cells.

For the following plots, the origin is South Up.

Cluster sum distribution. (after low 5 bit suppression)

Trigger multiplicity

Attached spreadsheet shows number of triggers, pseudo-rapidity, and phi for each cell.