LHCb & EYETS 2016-2017
EYETS Schedule Eric Thomas PH-LBO
EYETS: Detector work No major work – detectors are in good shape (at least today). “Standard“ maintenance of all detectors and service, typically to fix few channel or replace broken electronics Requires to open Some detectors (M1, CALO, …) Venting of the Beam Pipe Survey … “Exceptional” work CO2 transfer lines installation (upgrade) Repair Silicon Tracker broken bonds Herschel L0/Scintillators replacement RICH1 HPD exchange Eric Thomas PH-LBO
Detector Activities VELO:- RICH1: HPD box down (FE electronics HPD) ebugging of some electronic Boards VELO:- RICH1: HPD box down (FE electronics HPD) TT: Repair broken bonds (module shipped to Zurich) Dipole: Tightening current feed connectors IT: - OT: - ECAL/HCAL: Change PMTs, CS 137 Scan, passive dosimeters exchange PS/SPD: fix SPD VFE LV distribution, PRS VFE replacement, passive dosimeters exchange M1:Open A Side M2-M5 debugging of some electronic Boards (Towers) Herschel L0/Scintillators replacement
EYETS: Main tasks and constraints Replacement AS713 (PZ85 lift) by EN-HE Schedule: 06/02/17 -14/04/17 Access via PM85 shaft Access condition EDMS1682496 Revamping PR720&PR721 (UX85 80t overhead cranes) by EN-HE Schedule: Jan 30 – 14/04/17 Limited access to detector Very limited Time window for detector work : From Dec 5 2016 to Jan 22 2017 Eric Thomas PH-LBO
Access to UXA during Cranes revamping (provisional design) (G. Roche)
Access to UXA during Cranes revamping (provisional design) (G. Roche)
Important dates EYETS from 5th of December 2016 @6am until April 30th LHC back to OP on 14th April (powering tests) (No access to CERN, incl. surfaces, offices …) Experiments closed on 30th April NO ACCESS during CERN closure: from 22/12/16 to 4/1/17 included Safety System tests: Jan 2nd 2017 AUG test P8: Feb 27th (incl. surface) Auto Transfer test Feb. 4-5th 2017 DSO test April 7-8th (!Warning Patrol w14) Test ‘Secouru’ Jan 9th (6:00 to 6:10 am)
CV / P8 yearly maintenance Weeks 3-4-5 From Jan 16th to Feb 3rd 2017 Stop of SF, SU, UW facilities Mechanical cleaning of towers Mechanical and electrical maintenance Back-up cooling power: limited to 400kW 400 kW Weeks 3-4-5
CV Detector Cooling RICHs 16 -17 Jan 2017 Service and change of PLC battery (-> Stop of the plant) OT 18-19 Jan 2017 Service, change of PLC battery, pump 1 service (-> Stop of the plant) IT and TT 20-26 Jan 2017 Service, change of PLC battery, replacement TT pump, replacement of moist filters on both stations. X-feeding mode except for one day (stop of the plant) for battery exchange.
Gas Patrick Carrie will contact individual detector groups to confirm the schedule and answer questions
Gas
Gas
LHCb planning
LHCb planning
LHCb planning
LHCb planning
LHC planning
Xmas Closure 22/12/16 – 04/01/17
Xmas closure: Detector Status POWER Rule All the equipments shall be switched OFF Exceptions Shall be justified Equipment's shall be in safe state (see operational procedure documents, update it if necessary) Instructions shall be available in case of problem
Xmas Closure: Detector Status GAS All systems ON, restart writhing 24h Except OT: running, restart asap GEM backup? COOLING IT/TT ON, restart asap RICH, OT/SPD VELO: velo piquet Other Piquet numbers shall be reachable
Xmas Closure: Access Lab closed Access allowed for happy few on short list (edh access request mandatory) Only for those whose presence is needed Stand-by contact persons for urgent/unexpected access. Instructions to be issued soon …