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Updates on TT11

Updates on TT11. Christoph Hessler, Brennan Goddard, Malika Meddahi. New TT11 layout. PS2, new lattice, moved by 2 cell lengths. 2 more cells added in TT11 @ PS2 extraction location (+ 2x21m). SPS. TT10. PS2, fodo lattice, original position. PS2, new lattice, moved by 3 cell lengths. 33 m.

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Updates on TT11

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  1. Updates on TT11 Christoph Hessler, Brennan Goddard, Malika Meddahi

  2. New TT11 layout PS2, new lattice,moved by 2 cell lengths 2 more cells added in TT11 @ PS2 extraction location (+ 2x21m) SPS TT10 PS2, fodo lattice, original position PS2, new lattice,moved by 3 cell lengths 33 m TI 2

  3. PS2 LSS for inj. / extr. Additional 2 cells To SPS H- injection p injection (TT10) Prim 2nd sec MTEBKT DuK InjK InjS MTEBK MS2 MS1 ES ExtK BD+1st sec Courtesy W. Bartmann

  4. EE insertion –version 2 PS2 to SPS Additional 2 cells PS2 TT11 TT10 SPS Skew quads

  5. PS2 to SPS E. Exchange Version 2

  6. PS2 to SPS E. Exchange Version 2

  7. Performance with emittance exchange version 2 • For CNGS beam at 50 GeV, with 0.1% dp/p, this dispersion mismatch causes en blowup of 0.5 mm in V plane (0.0 mm in H plane). • Already looks reasonable – and further optimisation certainly still possible Normalised emittances from PS2 to SPS for CNGS beam *assuming 0.5 mm en increase from other mismatch sources Source: Brennan Goddard for PS2 review May 08

  8. EE insertions: version 3 PS2 to SPS Additional 2.5 cells PS2 TT11 TT10 SPS Skew quads

  9. PS2 to SPS E. Exchange Version 3

  10. PS2 to SPS E. Exchange Version 3 No dispersion mismatch

  11. Performance with emittance exchange version 3 • No dispersion mismatch, no corresponding emittance blow-up! Normalised emittances from PS2 to SPS for CNGS beam *assuming 0.5 mm en increase from other mismatch sources

  12. What’s next? • Check / correct new geometry • Check optics for other beam types • Aperture • Trajectory correction • Magnet specs

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