Schedule IT

General Schedule 9 th, September 09 Today

Overview IT

Extended transfer line tests.. IT

IT Tests with beam 2.5 days with beam Pilot Beam for the most part:  single bunch of x 10 9 protons Beam emittance: 1 µm Momentum spread: nominal Nominal tunes, nominal magnetic machine Total intensity injected:  1 x protons

Stopping the beam IT Stefano Redaelli

Beam etc 2008 IT

Program revisited – one sector – first cut IT Final BIS tests, TEDs out etc.Friday p.m. Injection region4ABT & co Threading2To collimatorsJorg & co Momentum matching check1Jorg & co Kick response4corrector /BPM checksK. Fuchsberger & co Dispersion8matching from lineOP/ABT Cycle2OP Injection region studies6aperture/kicker waveformBren, Jan & co Arc Aperture4Stefano & co Higher order polarity6Frank Z & co Momentum aperture2trim lines?OP Cycle2OP Spectrometer4Mike & co Injection protection set-up4ABT & co Loss response at collimators4 Screens2plus shot-to-shot stabilityVK, [Multibunch]2 57 hours

Other IT BLMsParasitic & collimators Ralph SteinhagenBBQ etc. R2E Alice Quenches?

Preparation – on the list IT [Dry] Run line, injection, and LHC together OP checks of S23 and/or S78 etcfollowing PGC, cycles etc. Spectrometer tests Vacuum valves and interlock tests Lock Collimators DSO, EIS etc. Beam Interlock System Final configuration PIC 2 BIC configuration SMP Interface to Vacuum, PIC, WIC +… Beam Permit loops in place Activate only required User inputs: 5 BICs (L2, R2, UJ33, SR3 & CCR) are involved Other BICs not implicated in the Beam Permit => User Permits inputs disabled Beam dumpArm – to BIS, energy tracking

Pre-flight checks IT Injection septa, kickersPulse elements, soft start tests RF synchro – pre-pulsesExtraction/Injection tests RF re-phasing Timing SystemInjection requests CollimatorsControls tests plus Hardware interlocks VacuumInterlock tests, valves out TDI & TCDDIST, Controls tests BLMsAcquisition, PIC, thresholds BPMs“BeamThreading” - test BPM – sum signalQ8.R2, Q8.L3 BTVsTests, calibration etc. BCTTest RADMONControls tests RAMSESCheck Optics, aperture & knobs

Pre-flight checks IT Logging Alarms LSA/Settings etcfull pre-cycle, polarity checks, settings checks, FIDEL YASP Controls Infrastructure Magnet modelfull decay etc Optics/Aperture On-line modelknobs etc Sequencer Software InterlocksInjection permits etc, PGC & settings on the sector

RP actions after the Sector Test Delayed access to the LHC due to air activation (~1/2 hour) The LHC areas affected by the Sectors Test will remain closed until RP has performed a radiation survey in the areas. The LHC area to be surveyed is ranging from R22 up to the area downstream last beam impact point in Point 3 (direction Point 4). Point 3 will remain closed with radiation veto. Due to the risk of elevated dose rates the survey in Point 3 will not be done before access to this area is required. The whole RP survey will last approximately 1 day. Survey will start downstream Point 3 into direction of Point 4, followed by a survey of the ALICE experimental cavern. Radiation vetos will be lifted as soon as surveys are finished. IT Doris Forkel-Wirth, Helmut Vincke

Forecast of area classifications after the test All areas which have seen beam or secondary particles originating from any beam impact will be classified at least as Supervised Radiation Areas. These areas will range from R22 over ALICE to the area located downstream Point 3 (direction Point4). Personnel accessing Supervised Radiation Areas have to be equipped with a personal dosimeter. Areas around the Point 3 collimators will be classified as Controlled Radiation Areas:  Area will not be freely accessible (access doors closed by radiation veto)  Personal and operational dosimeter will be required  Job and dose planning is required for access Area around the TDI absorber will most probably remain accessible with personal dosimeter only. The final classification will however depend on the intensity shot on the TDI absorber. IT Material leaving classified areas: All material leaving radiation areas needs to be classified and/or controlled by RP Doris Forkel-Wirth, Helmut Vincke

Support IT PO DaveCERN piquet ++ AccessGhislainOn-call support TS/ASE SPSExpert OP coverageOP RPHelmut Vincke, Doris Forkel- Wirth HV will be available ( CCC, and full time available by phone. Our technician in charge (or the piquet) will be certainly available via phone full time MPPAndre, Rob, NuriaOn-call support in case of problems. Will particpate. RFAndyWe know where you live BIRhodri, Lars, Bernd + on-call support ATB Beam stopper - check BT Bren, Etienne, Volker….On-call support in case of problems. Will particpate. CRYO On-call support in case of problems HWCRoberto, RudigerWill participate. QPS On-call support in case of problems. CO Eugenia organising full coverage: LSA, timing, FEs etc. BISBrunoWill participate Vacuum Need on-call support in case of problems.