1. CALO News Pascal Perret LPC Clermont 23 October 2011

2. 2 News  Planning: Ion run: 12/11 – 8/12: Beam stop 08/12 06:00 am … X-mas break: 8/12 – 7/3 Safety: RP shall be informed prior to Access inside the detector Opening/closure of detector Destructive work Handling of fluids 14/12-20/12 Reduced power (ventilation, access restriction to ux85 may happen) Online services (computers, infrastructure) will be stoped from Dec 22 nd to Jan 4 th Some online activities not yet scheduled Start PUMP DOWN 24/2 Pascal Perret - LPC Clermont 23/11/2011

3. 3 X-mas break activities  SPD: Check/change of some regulator boards (or resistors) ~1 week per side:  PS: no activities  ECAL/HCAL: Check/change of few PMT/C-W ~2 days per side Specific treatment for anything in ZDR (Radioactive Waste Zoning) we need to treat is as radioactive!  L0 hadron trigger: cable tests (XCAL platform) To be scheduled  Write a description/procedure of the works you plan to do  Survey measurements? Pascal Perret - LPC Clermont 23/11/2011

4. 4 X-mas break activities Pascal Perret - LPC Clermont 23/11/2011 Should fit with RICH2 activities

5. 5 X-mas break activities  Remarks: You will have to work in a radioactive area! RP survey has to be done after opening/closure of detector Look carefully at Gloria’s presentation: https://indico.cern.ch/getFile.py/access?contribId=13&resId=0&materialI d=slides&confId=159183 We have to benefit of the opening of the detectors to change some (all?) passive radioactive detectors: SPD, ECAL, HCAL, electronics (VFE, FE, HV) ECAL irradiated modules? New procedures for the opening/closing of detectors EDMS notes under revision: + checklist & report forms https://lbtwiki.cern.ch/bin/view/CALO/LHCbCaloDetectorIntervention Help will be needed to move the detectors Pascal Perret - LPC Clermont 23/11/2011

6. 6 Activities Follow-up  Documentation: New procedure for HCAL Cs source runs has to be written Status? Update of the procedure for the piquets during the break! Prepare new piquet training documentation/session for February New Data Manager pages …  Publications: Public note: “Calibration and alignment of the SPD detector with cosmic rays and first LHC collisions” under review Similar notes from PS, ECAL & HCAL expected Pascal Perret - LPC Clermont 23/11/2011

7. 7 Calibration  XCAL PMT gain change follow up during data taking Proposal from Jacques to decrease HCAL PM gain by a factor 4 cf Yuri’s talk  Put in place a process to follow more closely detector efficiency changes with the delivered luminosity Progress from Marie-Noelle Pascal Perret - LPC Clermont 23/11/2011

8. 8 Next meetings  2012: 08/02 21/03* (prior LHCb week) 25/04 13/06* 25/07 29/08* 10/10 21/11* Pascal Perret - LPC Clermont 23/11/2011