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This page presents an attempt to use the trigger TEM diagnostic information to recognize calorimeter ghost signal.
Pass 8 Recon & Analysis Upgrades Weekly Meeting Agenda

Summary

• Code and method
• Ghost number and cluster classification
• |#

Information available

• The TEM trigger diagnostic information provides trigger information on CalLo and CalHi per each layer end.
• From Sasha:

  The code example for accessing CAL diagnostic info I can recommend you is the algorithm from calibGenCAL package used for trigger thresholds measurement:
  /afs/slac/g/glast/users/chehtman/calibGenCAL_analysis/calibGenCAL/calibGenCAL-05-06-00/src/lib/Algs/LPATrigAlg.cxx
  The method
  LPATrigAlg::fillTrigBitArray()
  just extracts CAL trigger bits from a digi file and puts them into some local structure.

• As a reminder, CalLo is at 100 MeV and CalHi at 1 GeV.

Analysis

Code and method

• Starting from Sasha's example, I wrote a piece of code that does the following:

...

Ghost number and cluster classification

Event display