1 / 11

Ions in SPS Status report

Ions in SPS Status report. D.Manglunki , BE/OP M.E.Angoletta , J.Axensalva , H.Bartosik , M.Bodendorfer , T.Bohl , C.Carli , S.Cettour Cave, H.Damerau , I.Efthymiopoulos , A.Findlay , S.Hancock , J.Jowett , D.Küchler , Y.Papaphillipou , S.Pasinelli , B.Vandorpe , U.Wehrle , …

patch
Télécharger la présentation

Ions in SPS Status report

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ions in SPSStatus report D.Manglunki, BE/OP M.E.Angoletta, J.Axensalva, H.Bartosik, M.Bodendorfer, T.Bohl, C.Carli, S.Cettour Cave, H.Damerau, I.Efthymiopoulos, A.Findlay, S.Hancock, J.Jowett, D.Küchler, Y.Papaphillipou, S.Pasinelli, B.Vandorpe, U.Wehrle, … IEFC October 19th, 2012

  2. Agenda • Fragmented Pb for NA61’s Be run • Under control • p and Pb beams for LHC’s p-Pb • Q20 or Q26? • Ar and Xe runs after LS1 • Cables for interlock • Issue of water availability in 2013 • Proposal for schedule allowing to complete Ar & Xeprogrammes by mid-2016 D.Manglunki – IEFC – Ions in SPS

  3. Fragmented Pb for NA61’s Be run • 3 momenta: 13, 20, 30AGeV/c • Equivalent proton momenta 36, 55, 80GeV/c • 4, 3, or 2 injections • Scheduled from 03/12/12 to 17/12/12 then from 07/01/13 to 11/02/13 • Cycles are ready • High duty cycle (>30%): sole SPS user apart from • LHC fillings • HiRadMat • Proton MDs D.Manglunki – IEFC – Ions in SPS

  4. p and Pb beams for LHC’s p-Pb • 200ns or 100ns? • 200ns preferred (?) but 100ns ready too from PS • Q20 or Q26? • First MD needed to make sure ions can be injected with 3 MKP generators on Q20 (rise time <200ns) • If not • Either switch to Q26 for p+ and ions • Or go back to smaller number of bunches/batch(longer filling time for p+) • Note: 3x8 excludes filling schemes with 2,4,6 bunches D.Manglunki – IEFC – Ions in SPS

  5. Harmonic number / Frequency Harmonic number / Frequency Nb of bunches Nb of bunches 2 2 2+1 1/ring 9-10 16–14-12-24 20-21-84 24-21-169 2 8 200 MHz 200 MHz 24 24 New p-Pb 200ns scheme in 2013 PSB (3 1010 protons) PS double injectionbatch compression bunch spacing = 200ns SPS at extraction,after 3 transfers from PS, Batch spacing = 225 ns minimum note: minimum batch spacing of 225ns dictated by protons injection at 26GeV/c LEIR (9 108 Pb ions / 3.6 s) PS batch expansion bunch spacing = 200ns SPS at extraction,after 12 transfers from PS, Batch spacing = 200 ns (225ns every 4th injection) 1.4 108

  6. Harmonic number / Frequency Harmonic number / Frequency Nb of bunches Nb of bunches 2(1/ring) 2 2 2+1 9-10 16–14-12-24 20-21-84 24-21-169 2 2 200 MHz 200 MHz 24 24 “Old” p-Pb 200ns scheme 1.5 1010 PSB (3 1010 protons) PS batch compressionbunch spacing = 200ns 1.2 1010 SPS at extraction,after 12 transfers from PS, Batch spacing = 225 ns minimum In case minimum batch spacing of 225ns dictated by MKP with 4 generators LEIR (9 108 Pb ions / 3.6 s) PS batch expansion bunch spacing = 200ns 1.4 108 SPS at extraction,after 12 transfers from PS, Batch spacing = 225 ns minimum

  7. Harmonic number / Frequency Nb of bunches Nb of bunches 9-10 2 2 20-21-84 16–14-12-24 24-21-169 4 4 200 MHz 48 48 p-Pb 100ns scheme 3 1010 Harmonic number / Frequency PSB (6 1010 protons ) 2 PS batch compression+splitting ; bunch spacing = 100ns 1.2 1010 SPS at extraction,after 12 transfers from PS, Minimum batch spacing = 225 ns Note: minimum batch spacing of 225ns dictated by protons injection at 26GeV/c 4.5 108 LEIR (9 108 Pb ions / 3.6 s) PS batch expansion+splitting ; bunch spacing = 100ns 1.4 108 SPS at extraction,after 12 transfers from PS, Minimum batch spacing = 225 ns

  8. Ar and Xe runs after LS1: [Reminder] Cables for interlock • Primary beam to North area, collimators open • Need to prevent extraction of high intensity (p+) beam • Interlock designed: 2 BCTs inhibiting MST&MSE if I>2e11 • Needs cables between • BA5 (BCTs & comprators) • BA3 (CCR, GS/ASE automats) • BA2 (MST/MSE power supplies) • EN & TE DHs have committed about those cables

  9. Ar and Xe runs after LS1: water in 2013 • Originally 2x13 weeks in 2013 for Ar & Xe tests in ECR • LHC p-Pb moved to January/February 2013 • 6 months needed for water maintenance • Only Ar will be possible, from mid-September to early December 2013 • Issue of Linac4 test stand for January-June 2013

  10. Ar and Xe runs after LS1: proposal • September-December 2013 (or March-June 2013?): Ar in ECR • June-December 2014: commission Ar in LEIR, PS, SPS • February-March 2015: Ar run for NA61 in SPS North Area • April 2015: Linac3 maintenance • May 2015: switch ECR to Xe • May-July 2015: Xe setup in  ECR • August 2015: Switch ECR to Pb • August-October 2015: RecommissionPb in injectors • November-December 2015: LHC Pb-Pb run • Xmas break+ Jan-feb 2016: Linac 3 maintenance • March 2016: switch ECR to Xe • March-May 2016: commission Xe in LEIR, PS, SPS • June-July 2016: Xe run for NA61 in SPS North Area • August 2016: Switch ECR to Pb • August-October 2016: RecommissionPb in injectors • November-December 2016: LHC Pb-Pb run

  11. Ar and Xe runs after LS1 • Advantages • Avoid further delays and complete Xe by mid-2016 • Ion run allows cooldown before resuming works in North Area in April 2015 • Hypotheses • SPS fixed target p+ run in late 2014

More Related