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Injection and extraction region transfer lines, new TT10 and TT11 switch

Injection and extraction region transfer lines, new TT10 and TT11 switch. C. Hessler, B. Goddard, M. Meddahi PS2 meeting 25.06.2009. Thanks to: W. Bartmann, M. Benedikt, J. Uythoven. Overall Layout. based on PS2 version from 17. Dec. 2008. Beam Line Overview. TTL1 (Update).

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Injection and extraction region transfer lines, new TT10 and TT11 switch

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  1. Injection and extraction region transfer lines, new TT10 and TT11 switch C. Hessler, B. Goddard, M. Meddahi PS2 meeting 25.06.2009 Thanks to: W. Bartmann, M. Benedikt, J. Uythoven

  2. Overall Layout based on PS2 version from 17. Dec. 2008 C. Hessler, B. Goddard, M. Meddahi

  3. Beam Line Overview C. Hessler, B. Goddard, M. Meddahi

  4. TTL1 (Update) Based on the new TT11 design (with emittance exchange section) with the following consequences: • PS2 closer to TI 2, further away from TT10 • TTL1: shorter length, larger bending angles • larger slope of 8.1%, more bending magnets needed • first part of TTL1 still compatible with HP-SPL, second part only compatible with LP-SPL @ 4 GeV • second part can be compatible with LP-SPL @ 5 GeV if 7.2 m (instead of 5.75 m) long dipoles are used C. Hessler, B. Goddard, M. Meddahi

  5. TTL1: Optics Simulations C. Hessler, B. Goddard, M. Meddahi

  6. TTL1: Optics Simulations C. Hessler, B. Goddard, M. Meddahi

  7. TTL1: Aperture Calculation beam envelope x, y (m) s (m) N = 6co = 5 mm beam envelope: C. Hessler, B. Goddard, M. Meddahi

  8. TT10 (Fast Injection) • New part starts at QID1015 of present TT10 • FODO lattice with 90° phase advance per cell and 30 m cell length • Dispersion suppressor scheme to avoid creation of additional dispersion (in addition to the existing large dispersion values in TT10) • Matching sections at the start and the end of the line • Using the same magnet types as in TT10 C. Hessler, B. Goddard, M. Meddahi

  9. TT10: Optics Simulations C. Hessler, B. Goddard, M. Meddahi

  10. TT10: Optics Simulations C. Hessler, B. Goddard, M. Meddahi

  11. TT10: Aperture Calculation beam envelope x, y (m) s (m) N = 6co = 5 mm beam envelope: C. Hessler, B. Goddard, M. Meddahi

  12. TT11 (Update) • Based on the version presented by M. Meddahi at the PS2 meeting on 16.04.2009: • Fodo lattice with 21 m cell length and 90° phase advance/cell • Emittance exchange section between 2 achromats • Changed position of some bending magnets and a quadrupole to avoid interference with other magnets at the PS2 extraction region C. Hessler, B. Goddard, M. Meddahi

  13. TT11: Optics Simulations w/o emittance exchange C. Hessler, B. Goddard, M. Meddahi

  14. TT11: Optics Simulations w/o emittance exchange C. Hessler, B. Goddard, M. Meddahi

  15. TT11: Aperture Calculation 20 GeV w/o emittance exchange beam envelope x, y (m) s (m) N = 6co = 5 mm beam envelope: C. Hessler, B. Goddard, M. Meddahi

  16. TT11: Optics Simulations w/ emittance exchange C. Hessler, B. Goddard, M. Meddahi

  17. TT11: Optics Simulations w/ emittance exchange C. Hessler, B. Goddard, M. Meddahi

  18. Beam Line to Experimental Area (TTEA) • Branches off TT11 using MBS-like switching magnets • Fodo lattice with 90° phase advance per cell and 26.25 m cell length • Dispersion suppressor scheme • Using same magnet types as in TT11 • Design covers only first part of the beam line C. Hessler, B. Goddard, M. Meddahi

  19. TTEA: Optics Simulations C. Hessler, B. Goddard, M. Meddahi

  20. TTEA: Optics Simulations C. Hessler, B. Goddard, M. Meddahi

  21. TTEA: Aperture Calculation 20 GeV beam envelope x, y (m) s (m) N = 6co = 5 mm beam envelope: C. Hessler, B. Goddard, M. Meddahi

  22. Injection and Extraction Region C. Hessler, B. Goddard, M. Meddahi

  23. Fast Injection Region C. Hessler, B. Goddard, M. Meddahi

  24. Fast Injection Region Detail C. Hessler, B. Goddard, M. Meddahi

  25. H- Injection and Extraction Region C. Hessler, B. Goddard, M. Meddahi

  26. Injection Chicane Detail C. Hessler, B. Goddard, M. Meddahi

  27. Special Quadrupoles C. Hessler, B. Goddard, M. Meddahi

  28. TD1 Branch Off C. Hessler, B. Goddard, M. Meddahi

  29. TT10/TT11/TD1 Crossings C. Hessler, B. Goddard, M. Meddahi

  30. TTEA Branch Off C. Hessler, B. Goddard, M. Meddahi

  31. TTEA Branch Off Detail C. Hessler, B. Goddard, M. Meddahi

  32. TTL1 Draft Magnet Specifications * using former LEP dipole cores C. Hessler, B. Goddard, M. Meddahi

  33. TT10 Draft Magnet Specifications C. Hessler, B. Goddard, M. Meddahi

  34. TT11 Draft Magnet Specifications C. Hessler, B. Goddard, M. Meddahi

  35. TTEA Draft Magnet Specifications C. Hessler, B. Goddard, M. Meddahi

  36. Conclusion • TTL1 no major issues - details of space charge effects to be interated. • TT10 - large aperture required for new quads (and possibly upgrade for some existing ones). • TD1 - feasible to transfer beam to H0/H- dump. • TT11 - version with emittance exchange possible IF present extraction-before-injection layout maintained. • Coil windows and beam passage in doublet quadrupoles not obvious - design checks needed. • Injected/extracted beams crossing in TT12.MQF9 looks feasible - to check in detail • Special magnet types will include some C-dipoles for beamlines near the PS2, e.g. MBIH.H1.1 in TD1, TT12.MB.8.D.1 in TT11, etc • If emittance exchange NOT needed in TT11 and slow extracion NOT needed in LSS1, can simplify the layout considerably. C. Hessler, B. Goddard, M. Meddahi

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