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Requested .v. Available beam time

Requested .v. Available beam time. Simon Baird PS Days 26/1/01. Requested .v. Available beam time. Approved experimental & test beam program until 2007 Beam requests for approved users until 2007 Can we meet these requests? What could we do to improve the situation?. Assumptions.

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Requested .v. Available beam time

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  1. Requested .v. Available beam time Simon Baird PS Days 26/1/01

  2. Requested .v. Available beam time • Approved experimental & test beam program until 2007 • Beam requests for approved users until 2007 • Can we meet these requests? • What could we do to improve the situation?

  3. Assumptions • Standard 16.8 second super-cycle • 19.2 second super-sycle for ions in SPS • Dedicated 20.4 second super-cycle for LHC filling • SPS supplies either FT and/or CNGS or LHC • PS + PSB try to supply all users in parallel

  4. SFTPRO for Fixed target physics 2001: 15 weeks 2002-2004: 28 weeks 2005: 6 weeks Ion operation 2001: No ion run 2002: Pb ions 8 weeks 2003: light (Indium?) ions 8 weeks 2004 onwards: No more ion operation foreseen Approved experimental program SPS PS 2.4 secs + 2 PSB cycles PS 4.8 secs + 4 PSB cycles

  5. PS 2.4 secs + 1 PSB cycle LHC PS 10.8 -14.4 s + 6-8 PSB cycles 2004: LHC sector test 2005-2007: LHC commissioning + filling CNGS 2005-2007: CNGS operation MD 2001-2007: 1 cycle + some dedicated MD periods Approved experimental program SPS PS 3.6 seconds + 3 PSB cycles PS 2.4 secs + PSB 1 cycle

  6. EAST HALL 2001-2007: 30 weeks TOF 2001-2007: 30 weeks dedicated and parasitic cycles Approved experimental & test beam program PS PS 7.2 secs + 3 PSB cycles PS 2.4 - 3.6 secs + 2 - 3 PSB cycles

  7. Maximum of of 1.3 1019 protons in 2001 Not including down time!!! TOF Intensity - requirements 4 1012 protons/pulse - parasitic mode on EASTC 7 1012 protons/pulse - dedicated cycles

  8. EAST HALL 2001-2007: 30 weeks TOF 2001-2007: 30 weeks dedicated and parasitic cycles AD 2001-2007: 30 weeks (stacking mode?) MD 2001-2007: 1 cycle + some dedicated MD periods Approved experimental & test beam program PS PS 2.4 - 3.6 secs + 2 - 3 PSB cycles PS 1.2 secs + 0.5 PSB cycles PS 2.4 secs + 1 PSB cycle

  9. ISOLDE 2001-2007: 50% of PSB cycles MD 2001-2007: 1 PSB cycle Approved experimental program PSB 7 PSB cycles 8 PSB cycles - LHC filling & ion operation

  10. day 2001…. No SPS (16.8 second super-cycle) PS PSB EAST (3) 7.2 s 3 cycles TOF (2-3) 2.4 - 3.6 s 2 - 3 cycles AD (0.5) 1.2 s 0.5 cycles MD(PS/SPS) (1) 2.4 s 1 cycle MD (PSB) (1) - 1 cycle TOTAL 13.2 - 14.4 s 7.5 - 8.5 cycles OK for PS (even some spare cycles!!!) Just OK for ISOLDE 5.5 - 6.5 (7.5 - 8.5)/14 cycles day night

  11. 2001-2007…. SPS FT (16.8 second super-cycle) PS PSB SPS (2) 2.4 s 2 cycles EAST (3) 7.2 s 3 cycles TOF (2-3) 2.4 - 3.6 s 2 - 3 cycles AD (0.5) 1.2 s 0.5 cycles MD(PS/SPS) (1) 2.4 s 1 cycle MD (PSB) (1) - 1 cycle TOTAL 15.6 - 16.8 s 9.5 - 10.5 cycles OK for PS (just) Bad for ISOLDE 3.5 - 4.5 (5.5 - 6.5 )/14 cycles day day night

  12. 2002-3…. SPS ions (19.2 second super-cycle) PS PSB SPS (4) 4.8 s 4 cycles EAST (3) 7.2 s 3 cycles TOF (2 - 3) 2.4 - 3.6 s 2 - 3 cycles AD (0.5) 1.2 s 0.5 cycles MD(PS/SPS) (1) 2.4 s 1 cycle MD (PSB) (1) - 1 cycle TOTAL 18.0 - 19.2 s 11.5 - 12.5 cycles OK for PS (TOF & EAST slight reduction) Even worse for ISOLDE 3.5 - 4.5 (5.5 - 6.5)/16 cycles

  13. replace 1 EAST 2004-2007 SPS FT + LHC pilot (16.8 second super-cycle) PS PSB SPS (2) 2.4 s 2 cycles LHC pilot (1) 2.4 s 1 cycle EAST (2) 4.8 s 2 cycles TOF (2 - 3) 2.4 - 3.6 s 2 - 3 cycles AD (0.5) 1.2 s 0.5 cycles MD(PS/SPS) (1) 2.4 s 1 cycle MD (PSB) (1) - 1 cycle TOTAL 15.6 - 16.8 s 9.5 - 10.5 cycles OK for PS (EAST?) Bad for ISOLDE 3.5 - 4.5 (5.5 - 6.5)/14 cycles

  14. 2005…. SPS CNGS (16.8 second super-cycle) PS PSB CNGS (3) 3.6 s 3 cycles EAST (2) 4.8 s 2 cycles TOF (2 - 3) 2.4 - 3.6 s 2 - 3 cycles AD (1) 1.2 s 0.5 cycles MD(PS/SPS) (1) 2.4 s 1 cycle MD (PSB) (1) - 1 cycle TOTAL 14.4 - 15.6 s 9.5 - 10.5 cycles OK for PS (EAST?) Bad for ISOLDE 3.5 - 4.5 (5.5 - 6.5)/14 cycles

  15. replace 1 EAST 2004-2007 SPS FT + CNGS (16.8 second super-cycle) PS PSB SPS (2) 2.4 s 2 cycles CNGS (1) 1.2 s 1 cycle EAST (2) 4.8 s 2 cycles TOF (2 - 3) 2.4 - 3.6 s 2 - 3 cycles AD (0.5) 1.2 s 0.5 cycles MD(PS/SPS) (1) 2.4 s 1 cycle MD (PSB) (1) - 1 cycle TOTAL 14.4 - 15.6 s 9.5 - 10.5 cycles OK for PS (EAST or TOF?) Bad for ISOLDE 3.5 - 4.5 (5.5 - 6.5)/14 cycles

  16. 2006…. LHC (20.4 second super-cycle) With LHC filling PS PSB SPS (4) 12.0 -14.4 s 6-8 cycles EAST (3) 7.2 s 3 cycles TOF (2 - 3) 2.4 - 3.6 s 2 - 3 cycles AD (1) 1.2 s 0.5 cycles MD(PS) (1) 2.4 s 1 cycle MD (PSB) (1) - 1 cycle TOTAL 22.8 - 26.4s 13.5 -16.5 cycles Not possible!!!!

  17. During LHC fill…. PS PSB SPS (4) 10.8 -14.4 s 6-8 cycles EAST (2) 4.8 s 2 cycles TOF (2) 2.4 s 2 cycles AD (1) 1.2 s 0.5 cycles No MD…. TOTAL 18.0 - 20.4 10.5 - 12.5 cycles PS - reduce EAST & TOF by 30% + No MD PSB - 6.5 (4.5) / 17 for ISOLDE

  18. ISOLDE has “lost” SPP, SPN cycles to TOF Conclusions: SPS FT cycle 2001-2007 SPS FT protons OK for PS Bad for ISOLDE 3.5 - 4.5 (5.5 - 6.5)/14 cycles SPS ion OK for PS (TOF & EAST slight reduction) Even worse for ISOLDE 3.5 - 4.5 (5.5 - 6.5)/16 cycles Need to run PSB in dedicated mode for ISOLDE at least 4 weeks

  19. SPS protons + LHC sector test OK for PS: but reduction (30%) for EAST Hall Bad for ISOLDE 3.5 - 4.5 (5.5 - 6.5)/14 cycles Conclusions: 2004 include LHC sector test etc

  20. Conclusions: SPS for CNGS 2005... SPS CNGS OK for PS but again reduction (30%) for EAST Hall or TOF Bad for ISOLDE 3.5 - 4.5 (5.5 - 6.5)/14 cycles

  21. Conclusions: LHC filling2006…. Neither PS nor PSB can supply enough beam Reduce EAST & TOF by 30% + NO MD time PS OK…. PSB still cannot supply ISOLDE

  22. Conclusions • PS is tight but OK until 2004 • 2004... 30% reduction in EAST or TOF • 2006… during LHC filling - 30% reduction in EAST & TOF + No MD time • PSB cannot supply enough beam to ISOLDE: “lost” SPP, SPN cycles to TOF even in 2001!!! • Optimise ISOLDE, EAST, TOF schedules • 4 - 6 week dedicated ISOLDE runs in 2001-2003 will help • For LHC we need something more… • Multiple use of PSB rings • 600 msec PSB cycle

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