Progress Report on Tracker Bad-Strips Calibration
Leon Rochester
I&T SVAC/SAS Meeting, 21 June 2002

Starting from the code that ran the bad-strips calibration for BTEM/BFEM,

• Code now runs from TkrDigis, which will be the format of the EM tracker data (?)

• Calibration job can read the short root file of TkrDigis produced by the standard Gleam test.

Sample Hit histograms:

To do:

• Get Gleam to simulate a single tower instrument (EM or truncated flight model geometry), including noise hits. First try:

• Implement dead and hot strips in the simulated data.

• Run a large (20-40K) sample of sea-level cosmic rays (?)

• Run the calibration to produce the standard ASCII file.

• Verify that the correct dead/hot strips are produced.

• Implement levels and make first guess at the cuts. (?)

• Format the output for the database.

Question: can we really measure MIP efficiency in the EM module?

• Most inefficiencies will kill the trigger.

• Need tracking, and way to classify missing hits.

• Signal is likely to be dominated by noise.

But -- might be worth trying just to get a handle on the algorithm.