1. RPC calibration D. Piccolo INFN Napoli

2. Calibrations Electronic test –Channels check –Strip pattern for trigger check –Threshold test –Synchronization test Plateau –Cosmics ? (cosmic trigger) –Physical events Is it possible to change HV during data taking ? what to do during commissioning ? Performances from data –Efficiency –multiplicity

3. Electronic tests: –Single channels check with pulse –Threshold setting and readout –Synchronization FEB Link Board splitter Trigger Board Readout Board Strip patterns to simulate possible triggers Strip patterns to to check readout Questi item sono di competenza di polacchi e finlandesi ? Quale e lo stato della LB ?

4. Chamber performances How to calibrate the RPCs ? –HV working voltage Cosmics ? (trigger ?) pp data ? (is it possible to change HV during data taking ?) How to calibrate RPCs during commissioning ? –Efficiency at working voltage Data Base –Multiplicity at working voltage Data Base Efficiency at working voltage Data Base