CAF shifts and procedures

Marcello, Raffaello, Alberto, Pigi, Sungeun, David, Silvia, Anna & all the 2009 shifters

Goals, tools and shifts

• Goal: give a very fast feedback about the run quality

• Tools: use online and offline data– Online: DQM, Noise Monitoring, WBM– Offline: DQM and Prompt Analysis

• Meeting: short daily meeting at CAF (shifter + leader + expert if needed)

• Shifters: 2 people + 1 CAF leader per wee• Documentation

What we can analyze today• Problematic chambers:– Quantify them – Dead or masked (DQM state machine)– Noisy (DQM and Monitoring)

• Bunch crossing:– Distribution per wheel/disk (DQM)– List of “not in time rolls” (PA)

• RecHits studies:– Average # of cluster per endcap/barrel (DQM)– List of chamber with cluster size > 2.5/3.0

• Efficiency (if possible):– Average efficiency per wheel/disk (PA)– List of chambers with eff. < 85%/80%/75% (depends on HV)

What we do after the analysis

• Check results with CAF leader• Write ELOG report per run based on a

standard format• Write “special” ELOG message in case of

evident problems (after comparison with previous runs)

• Call P5 and Shift leader in case of “big problem” or “not understood” results

Where we are & to be done

• Documentation and instructions (thanks to the group and to the shifter feedback)

• Uniform ELOG reports• Good interaction with P5 and Run coordinator

• WBM (Raffaello)• Historical DQM (Anna and David)• Less info to write in the ELOG• More trained shifters (just question of time)