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AD and AD experimental areas: equipment tests and startup with beam Tommy Eriksson AB/OP/AD

AD and AD experimental areas: equipment tests and startup with beam Tommy Eriksson AB/OP/AD. AD and AD experimental areas: equipment tests and startup with beam. Planning Equipment tests HW status News for the 2006 run Beam requirements ccc Conclusion. 2006 Run planning.

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AD and AD experimental areas: equipment tests and startup with beam Tommy Eriksson AB/OP/AD

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  1. AD and AD experimental areas: equipment tests and startup with beamTommy Eriksson AB/OP/AD AD equipment tests and startup with beam

  2. AD and AD experimental areas: equipment tests and startup with beam • Planning • Equipment tests • HW status • News for the 2006 run • Beam requirements • ccc • Conclusion AD equipment tests and startup with beam

  3. 2006 Run planning • Short run with only 3 months of physics. • AD run extended to cover weekends. • 2650 hours total (2040 physics) are scheduled, to be compared with 3400 in 2004. • OP/AD-LEIR section will cover either AD or LEIR operation, including LEIR commissioning. • AD: ops crew = 5 specialists on-call Mon 07:00 – Mon 07:00 24h/24. Shiftwork on AD during startups and md:s. AD equipment tests and startup with beam

  4. Shutdown work/startup planning AD equipment tests and startup with beam

  5. Equipment tests • Key dates: • 24/4: search + closure of AD ring and Target Area • AD Hall remains in free access unless major problems • Target area in controlled access (special access procedure) • Controlled access to AD ring if needed • 24/4 – 14/5: HW tests + cold checkout • 15/5: startup w. production beam • No critical days AD equipment tests and startup with beam

  6. HW status: e-cooler AD equipment tests and startup with beam

  7. HW status: e-cooler AD equipment tests and startup with beam

  8. Electron cooler/Vacuum: • Replacement of / add missing NEG:s • Repair of orbit pickups • Replacement of cathode • Alignment • Improvement of orbit correctors 2904/2917: Study completed, but no budget to go further AD equipment tests and startup with beam

  9. Electron cooler/Vacuum • Install non-magnetic support for VVS3105 • Install vacuum chamber in place of K35 • Repair of BIPM sect 42 • Isolate 8000-line • Modify VVS in ej. line AD equipment tests and startup with beam

  10. News for 2006 • ACE (AD-4) has requested 500 MeV/c pbars for cell irradiation. • Approval by SPSC in Jan. 06 ?? • This implies significant changes to the AD cycle: • Tests of SW during eq.tests • Use of some of the planned md-periods during the year for further tests • Final setting-up followed by physics to be done at end of 2006 run to avoid disturbing the other users; 160 hours in total requested (setup + physics). • If unexpected problems, ACE can go back to 300 MeV/c operation on short notice AD equipment tests and startup with beam

  11. News for 2006 AD equipment tests and startup with beam

  12. News for 2006 • Tests of ATRAP:s new 3T solenoid in 2004 revealed that no beam can be transferred to ATHENA due to the stray field • A new H dipole will be installed to compensate (DE0.DHZ87) • Tests during startup AD equipment tests and startup with beam

  13. Beam requirements • 26 GeV/c beam needed as from 15/5 • No use of 3.57 GeV/c protons is planned, BUT: • In case of serious problems, we might have to resort to proton operation with AD in reverse polarity; 3.5 GeV/c tst beam should be available on fairly short notice AD equipment tests and startup with beam

  14. Operation from ccc • Start-ups and md:s will continue to be carried out from the ACR • As far as tools/diagnostics, no major problems can expected for ccc operation; CCC=MCR as seen from the AD • The required AD modifications for efficient operation from the ccc were: • Improve stability with improved steering dipoles for pbar/e-beam alignment • Replace MWPC:s by non-destructive BPM:s in the ejection lines • None of the requested modifications were carried out – many trips to/from ACR, more downtime and delays can be expected AD equipment tests and startup with beam

  15. Conclusion • Main worries for the 2006 startup: • 18 months stop • Electron cooler behaviour after complete dismantling • No adaptation for ccc-operation AD equipment tests and startup with beam

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