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Concluding Remarks

Concluding Remarks. Comments by FAIR Management Review of PBAR at CERN and FNAL Requirements of Experiments at FAIR PANDA FLAIR AIC PAX PBAR Production at FAIR. Project Staging. Old idea: Staging of the project ( three stages defined by optimizing start of science)

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Concluding Remarks

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  1. Concluding Remarks • Comments by FAIR Management • Review of PBAR at CERN and FNAL • Requirements of Experiments at FAIR • PANDA • FLAIR • AIC • PAX • PBAR Production at FAIR PBAR@FAIR

  2. Project Staging • Old idea: Staging of the project • (three stages defined by optimizing start of science) • New idea: Staging of the project • ( two phases defined/matched with assured funding level ) • Phase A = start-version • ( stage defined/matched with funding level by October 2007) • Phase B = all that‘s left out in Phase A • ( full project as defined by Annex of FAIR Convention ) PBAR@FAIR

  3. The STI recognized that there will be some limitations on the beams available to the various projects in Phase A but felt that they were acceptable in the circumstances. Even with this reduction it is a world class facility. PBAR@FAIR

  4. Start Version launched 7. Nov. 2007 PBAR@FAIR

  5. Multipurpose Facility FAIR • Beam Intensity: • - primary heavy-ion beam intensity increases by x 100 – x 1000 • - secondary beam intensity increases by up to x 10000 • Beam Energy: • - heavy-ion energy : x 30 • Beam Variety: • - antiprotons • - protons to uranium & radioactive ion beams • Beam Precision: • - cooled antiproton beams • - intense cooled radioactive ion beams • BeamPulse structure: • - optimized for experiments: from dc to 50 ns • Parallel Operation: • - full accelerator performance for up to four different and • independent experiments and experimental programs PBAR@FAIR

  6. Table of Parameters for comparison CERN & FNAL 4.6 E-6 7 E+7 PBAR@FAIR

  7. PANDA PBAR@FAIR

  8. PANDA Luminosity 7-10 GeV/c (high prec. mode) minimum 1031 ideally ~ 2·1031 at large momenta minimum 1032 ideally >2·1032 to increase discovery potential and reasonable nucleon structure measurements Maximum beam spread 7-10 GeV/c should not exceed 3·10-5 at small and large momenta should not exceed 3·10-4-5·10-4 respectively Running time ≥200 d/year  Detector maintainance ~3 m/year PBAR@FAIR

  9. RIBs to CR pbars to CR stable ions to NESR to low energycomplex FLAIR (ions, pbars) e- linac ER CR NESR pbar and RIB stochastic pre-cooling pbar and iondeceleration experiments with stored ions RESR pbar accumulation (RIB deceleration) FLAIR, AIC and EAR PBAR@FAIR

  10. FLAIR • PBAR Consumption • 108/cycle • Cycle time: 20-30 s • Pilot Beam same as HESR injection • Running time per Year • Whenever Antiprotons are produced at FAIR PBAR@FAIR

  11. AIC and EAR • Beam Time per Year: 2-3 weeks • Number of Stored pbars: 109 • Filling Cycles per Day: 3-5 • RESR blocked by RIBs PBAR@FAIR

  12. PAX PBAR@FAIR

  13. PAX • Required PBAR Production Rate: 2.107/s • PBAR Polarization: 20% • Proton Polarization: 80% • Running Time: 1-4 Year(s) at fb-1 PBAR@FAIR

  14. HESR PBAR@FAIR

  15. Average Luminosity strongly depends on thep-bar production rate Averaged luminosity, p-bar production rate 2*107 s-1 Averaged luminosity, p-bar production rate 1*107 s-1 PBAR@FAIR

  16. Wishlist of PBAR Users • PANDA: 2*107/s, 9 Months/Year = 5*1014 • FLAIR: 106/s, 5 Months/Year = 1013 • AIC: 6*104/s, 1 Month/Year = 1.5*1011 • PAX: 2*107/s, 12 Months/Year = 6*1014 Total : 1015/Year 1 Year: 3.15*107s Three Times overbooked! PBAR@FAIR

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