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run12 pp200 Trigger promotion data/simulation ratio puzzle

 

Channel/tiles observation

Here I will post my daily observations of the tiles with some comments. The summary is on : https://drupal.star.bnl.gov/STAR/blog/lisa/Bad-tiles-and-electronics-channels-EPD-Run-2024

Preliminary Request for 3.2 GeV FXT

 

TAC offsets - Run 2024

I am following Rosi's excellent instructions, with modifications for four crates.

EPD bias scan 2024

The MIP peak position depends on the Vbias, and we attempt to put all the MIP peaks at roughly the same ADC value, by adjusting voltages through a bias scan. 

GPC 368

 

EPD Gate Timing Scan - Run 2024

The procedure for this exercise has been described before.  In 2018, Mike wrote up the approach and code and late

Analysis-note-04272024

 

Analysis-note-04272024

 

Prepost check 2024 beginning of the run

We have run before Akio changed some settings: 25117033
And after: 25117048 and 50

Improvement visible!