Week coordinator report - C. Marchand Beam availability 28/07 → 04/08 PS septum replacement CERN power cut 04/08/2006 Week coordinator report - C. Marchand

Status of detector « calibrations » Trigger T6 tgt Time Status Hcal2 HV tuning Halo air 2x4h +2x4h  29/07 to do Timing optimizations Hcal trigger optimization Phys CT 2h +3h Rich PMT Hadron rings CT+MT 1h Rich APV Latency scans 4h? BMS/SciFi Threshold scans HI 8h HCAL1 OT MM HV plateaux (eff) 2.5T & 1T Other det.  General alignement BT,VI.. to redo 04/08/2006 Week coordinator report - C. Marchand

Summary of week pbs & work Beam No beam since July 29, 8h: -General CERN power cut on July 29, 8h -PS septum replacement on August 1, no beam till Aug 8 Beam line -Pbs going to « Beam on » 28/07 22h: B2/3 set values off by 0.6A wrt ref. values -Interlock B4/5 during field rotation tested and works -SM1 readings fluctuations noticed night of 29/07: investigated and fixed by techs on 01/08: replaced ADC card General -AirWell conditioning unit for MM & DC FE fixed (water flow) -Problematic recovery of Demineralized water after power cut: →small leaks in solenoid PSU, fixed →bigger leak on SM2, fixed -Problematic restart of UPS units 04/08/2006 Week coordinator report - C. Marchand

Summary of week pbs & work Target - No He3 loss after power cut, but hectic restart - Polarization restarted 01/08 13h: today at 13h (3days): +46.5% ; -44.7%; +49.8% Build up time like « best 2004 » 04/08/2006 Week coordinator report - C. Marchand

Summary of week pbs & work DAQ -Online filter improvements -Work in progress to improve trigger rate: actual limitation ~ 15 k/spill, limited by DATE5 FE -New version of LOAD checks GEOID Monitoring -COOOL bug fixes - Synchronisation of afs-onl and Run-logbook DB - Inclusion of COOOL histos and MurphyTV in Run-logbook? - To do: include beam line info in Run-logbook « Jiawei’s » trigger rate control 04/08/2006 Week coordinator report - C. Marchand

Summary of week pbs & work DCS Done: - dependence on CERN network removed (except time server and SMS alerts) - Silicon & SciFi-J CAENET comm. Pbs cured? - RICH PD HV in DCS; #units for #modules - RICH Wiener LV in DCS - Display of straw temp. pannel finished - « Masked items » & « Channels off » implemented To do: - RICH PMT HV; some work on IT/CO side - SM2 NMR reading - RICH APV LV - Daq barrack temperature: asap - RICH LV trip on overheat: asap - etc… 04/08/2006 Week coordinator report - C. Marchand

Summary of week pbs & work BMS/SciFi D/J -T0 BMS/SciFi-J in DB - No change in trigger time: BMS 1/2/5 time shifted due to TCS clock cable SciFi 1/2 shifted due to F1 resolution changed SciFi W -Moved out of beam to fix discriminator board Trigger -Additional tuning when beam back Silicon -Latch all data taken: some noise dependant on solenoid field, further investigations needed GEM - GEM01/02/03 moved out (RICH work) 04/08/2006 Week coordinator report - C. Marchand

Summary of week pbs & work DCs - DC4 moved out (RICH work): - DC0 moved down 4.5mm and to Saleve 24mm MM - Trips and problematic operation in 2.5T understood: → Sebastien report Straws -Threshold scans taken - ST02 & ST03 moved out (RICH work) RW - Nothing special MWPC - Nothing special W45 - Fluctuations in gas flow due to pump pb: fixed - Few RO errors 04/08/2006 Week coordinator report - C. Marchand

Summary of week pbs & work MuonW1 - Few mismatches in detector map MuonW2 - Few problematic channels HCAL1 - LED HV tuning done, waiting for beam - Problematic ADC channels swapped to dead zone HCAL2 - Nothing special ECAL1 - A lot of work done this week on HV: all OK - Still missing part of FE ECAL2 - HV channels OK, 80% FE OK (FIADC pbs) 04/08/2006 Week coordinator report - C. Marchand

Summary of week pbs & work RICH - Radiator gas system: *no problem during power cut (UPS and diesel worked) *incident on 30/07 due to burned heater in one compressor; temporary fix during week-end, cured on Monday. *no gas lost; leak rate OK; O2 level slightly higher (8ppm) *thermalisation fixed, back to fast circulation on Tuesday 04/08/2006 Week coordinator report - C. Marchand

Summary of week pbs & work RICH - Read-out cooling: *not active on 01/08, due to short in thermalisation system (cooling & therm. linked through use of same PLC) *all RO elements connected; pbs on few MAD+APV lines *improvement on thermal protection of RO: needs reset to restart LV - PD: on since 01/08; HV in PVSS; CH4 system OK - LV: slow control in PVSS implemented for both PM and APV - MAMPT: all on; RO OK; threshold scan done - APV: sparsified mode checked, OK; pedestals measured; latency scans stopped by power cut. 04/08/2006 Week coordinator report - C. Marchand

Rich single event display 04/08/2006 Week coordinator report - C. Marchand