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

cooling circuits require 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$FSEG-00361need to generate load PSFDED centre anneau need to generate load PSFDED aimant PSneed to generate load PSF$FSEG-00355need to generate load PSFTEB POPSneed to generate load SPS enough heat load North Area enough heat load

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

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

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

Linac2 (see EDMS ): 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

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

Linac3 (see EDMS ): 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

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

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

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