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ILC BSY (2006b)

ILC BSY (2006b). total length ≈ 650 m. σ x = 29 μ m η X = 20 mm Δ E = 2% Δ x = 400 μ m ≈ 14 σ x. wire scanners. total length ≈ 470 m. to IRTs. dump. MPS β -collimators. skew correction. 2D emittance measurement. MPS E -collimator. Ф = 4 mm. Ф = 96,54,12 mm.

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ILC BSY (2006b)

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  1. ILC BSY (2006b) Y. Nosochkov and M. Woodley (SLAC)

  2. total length ≈ 650 m Y. Nosochkov and M. Woodley (SLAC)

  3. σx = 29 μm ηX = 20 mm ΔE = 2% Δx = 400 μm ≈ 14σx wire scanners Y. Nosochkov and M. Woodley (SLAC)

  4. total length ≈ 470 m Y. Nosochkov and M. Woodley (SLAC)

  5. Y. Nosochkov and M. Woodley (SLAC)

  6. Y. Nosochkov and M. Woodley (SLAC)

  7. to IRTs dump Y. Nosochkov and M. Woodley (SLAC)

  8. MPS β-collimators skew correction 2D emittance measurement MPS E-collimator Ф = 4 mm Ф = 96,54,12 mm Y. Nosochkov and M. Woodley (SLAC)

  9. Diagnostic Chicane total length = 114.6 m energy BPM MPS energy collimator 12.5 mm  vacuum chamber Ф=15 mm OD ΔE/E = ±10% trajectories window laserwire detector (ε) Brett Parker’s BMP dipoles (20) Y. Nosochkov and M. Woodley (SLAC)

  10. vacuum chamber Ф=15 mm laserwire photons go through here Brett’s BMP magnet has a wide (±28 mm) clear horizontal aperture … put in a small (but reasonable) vacuum chamber for the beam and use the reamining clear aperture to pass laserwire photons Y. Nosochkov and M. Woodley (SLAC)

  11. Tesla “Type B” quadrupoles kickers septa Ф = 8 cm sextupole Y. Nosochkov and M. Woodley (SLAC)

  12. Tesla Kickers 40 mm • TESLA “Type B” quadrupole • Lcore = 1.5 m • bore radius = 10 mm • max pole-tip field = 7.9 kG Y. Nosochkov and M. Woodley (SLAC)

  13. no vertical bending raster kickers dump Y. Nosochkov and M. Woodley (SLAC)

  14. Some Magnet Details • chicane dipoles (20) • Brett Parker’s “BMP” dipoles • L = 2.8 m, horizontal full aperture ≈ 56 mm, vertical full aperture ≈ 34 mm • θ≈ 100 μrad: B = 0.06 T @ 1 TeV cm • total chicane SR emittance growth < 0.25% @ 1 TeV cm (DIMAD) • fast extraction kickers (25) • in-vacuum stripline devices • L = 2 m, horizontal full aperture = 40 mm, vertical aperture < 40 (> 20) mm • θ≈ 16 μrad: B = 0.0133 T @ 1 TeV cm • 100 ns rise-time, ? kV/cm, 225 MW total pulser power, 5 thyratron pulsers, 1 cable per kicker (≈ 20 kV) • for “tuneup” mode, assume large gap DC dipoles wrapped around (some of) the fast extraction kickers • septa (5) • current-sheet devices, 10 mm thick blade • L = 2 m, horizontal full aperture = 30 mm • θ≈ 0.6 &1.2 mrad: B = 0.5 T (3), 1.0 T (2) @ 1 TeV cm • rastering kickers (10 horizontal, 10 vertical) • L = 0.8 m, full aperture = 80 mm • θ≈ 26 μrad: B = 0.054 T @ 1 TeV cm • 3 cm sweep radius (1.4 μm × 1.4 μm beam size at dump window) … factor of ≈ 25 reduction in dE • reference TESLA Report 2001-05 (Maslov) Y. Nosochkov and M. Woodley (SLAC)

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