1. status of the machines over X-mas standby period, services required and plans for rapid start-up OP Group Meeting KH

2. cooling circuits require 200-300 kW heat load in order not to freeze circuits of the equipment must not be separated from the main cooling circuit for the temperature surveillance (BE/OP/TI) alarms must be available cooling circuits KH facilitycooling circuitload (present or required) Linacs and LEIRFDED-00049enough heat load PSB + TT2FDED-00065need to generate load PSBF$FSEG-00361need to generate load PSFDED-00050 centre anneau need to generate load PSFDED-00032 aimant PSneed to generate load PSF$FSEG-00355need to generate load PSFTEB-00046 POPSneed to generate load SPS enough heat load North Area enough heat load

3. MachineCircuitsStatusRem : LEIR - LINACFDED-00049RunningSource of Linac 3 running PSMain magnet FDED-00032 Stopped and drained Difficult to keep it loaded PSCentral building FDED-00050 RunningLoad from EPC PSPOPS FTEB-00046 Stopped and drained Difficult to keep it loaded PS + LinacChilled water PS F$FSEG-00355 RunningLinac3 running PSBBooster + TT2 FDED-00065 RunningLoad from EPC PSBChilled water Booster F$FSEG-00361 RunningLoaded with the ventilation SPSSPS ring FQSTR-00003 RunningCryo machine sector 1-2 North areaNA FQSTR-0002 RunningCryo North Area cooling circuits - IEFC 19/10/12

4. CV will intensify the rounds during the closure especially if the weather is cold. On Monday January 7 th, CV will restart : PS : FDED-00032 PS Magnet POPS: FTEB-00046 POPS will be fully operational on Tuesday. S.Deleval – IEFC 19/10/12 cooling circuits - IEFC 19/10/12

5. 6. February 2012: a good example Extremely cold and windy weather All the primary circuits were running with a reduced load. Large amount of problems on drinkable and fire hydrant circuits but the primary circuits had well resisted POPS start up was delayed because the filling circuit was frozen → corrective work acheived. IEFC 19 October 2012 S.Deleval – IEFC 19/10/12

6. Linac2 (see EDMS 1235164): source pulsing, beam on source beam stopper most converters on RF off vacuum maintained PSB: some TT2 converters on all other converters off RF off vacuum maintained PS: converters off RF off vacuum maintained SPS: power converters off RF power amplifiers on (dampers, TWC800, TWC200, IOT prototype in BB3) vacuum maintained cooling stays on proton machines, status KH

7. machineBE/OPBE/ABPTE/EPCBE/RFBE/CO, IT TE/VSCaccessRPEN/CV*EN/EL* Linac2TISVXXXXXXX PSBTI + SVXXXXXXX PSTI + SVXXXXXXX SPSSVXXXXXXX proton machines, services KH * EN/CV and EN/EL provide always piquet service ‘best effort’ service during working hours, but somebody must be reachable piquets which are not required (magnets, kickers, LL RF, … do not appear) magnets: in case of water leaks best effort OP: TI plus support from beam operators plus supervisor

8. Linac3 (see EDMS 1235164): source pulsing, beam on source beam stopper most converters on RF off vacuum maintained LEIR: all converters off RF off magnetic cycle prepared in case of re-start vacuum maintained ion machines, status KH

9. machineBE/OPBE/ABPTE/EPCBE/CO, IT TE/VSCaccessRPEN/CV*EN/EL* Linac3TISVXXXXXXX LEIRTI + SVXXXXXX ion machines, services KH * EN/CV and EN/EL provide always piquet service ‘best effort’ service during working hours, but somebody must be reachable piquets which are not required (magnets, kickers, LL RF, … do not appear) magnets: in case of water leaks best effort

10. GS: roads cleared fire brigade informed lifts DSO coverage references: Linacs: EDMS 1235164 other services KH

11. 2013 start-up KH 06-Jan07-Jan08-Jan09-Jan10-Jan11-Jan12-Jan13-Jan14-Jan L2 set upbeam 2 PSB PSB set upbeam 2 PS PS set upbeam 2 SPS SPS set upbeam 2 LHC L3source re-fillset upbeam 2 LEIR LEIR set upbeam 2 PS PS set upbeam 2 SPS SPS set upbeam 2 LHC beam to be given downstream as soon as ready beam parameters to be confirmed well before X-mas