DT calibration software: tentative release schedule S.Bolognesi & S.Maselli & G.Mila Alignement&Calibration Meeting, 25 January 2008, CERN

Noise DB  Noise channels computed from random trigger runs or normal runs (looking for hits outside the allowed time region for muon signal) noise channel if number of hit > tuned threshold  Algorithm implemented in CMSSW and systematically tested on sector/wheel commissioning data  TO BE DONE (short-term) separate the algorithm to compute noise channels from the full offline noise study (as a function of time and space) card in cfg to switch on/off the full study implement the writing of the DB DB noise interface already exists (DTStatusFlag) S. Bolognesi (INFN To)AlCa Meeting – CERN 25 January

Test pulse runs  inter-channel synchronization comparing peak position in each wire good test pulse signals noise electronic noise due to enabling/disabling masks  possible long-term DEVELOPMENT: use test pulses also to monitor noise channels to monitor dead channels (made by hand until now) Test pulse signals for a given wire AlCa Meeting – CERN 25 January S. Bolognesi (INFN To)

Time pedestals TDC spectrum time pedestal (t trig ) derivative of the rising edge fit with a Gaussian (,  ) t trig = - k ×   and  computed from the fit and stored in DB with SuperLayer granularity  k factor tuned from residuals  TO BE DONE (mid-term) Phi SL Theta SL implement automatic k factor optimization plotting residuals with the needed granularity it will be the starting point for validation (based on residuals) S. Bolognesi (INFN To)AlCa Meeting – CERN 25 January

Summary  Development foreseen on  short term (by the end of February → inside CMSSW_2_0_0) DB writing in noise analysis  mid term (by the end of March) k factor automatic optimization (→ kick off for the validation)  long term use test pulses data to compute noise and dead channels AlCa Meeting – CERN 25 January S. Bolognesi (INFN To)