Mark Woodley, SLACATF2 Project March 20-21, Next version of MAD decks (v3.7): what needs to be added/deleted?

Mark Woodley, SLACATF2 Project March 20-21, turn EXT sextupoles OFF; rematch in FF 2.use measured LEFF for QEA's 3.use estimated LEFF and design APER values for FD quads (FFTB 1.38Q17.72; shimmed to 50 mm Φ) 4.use estimated LEFF and design APER values for FD sexts (FFTB 2.13S3.00) 5.use Cherrill’s estimated LEFF and design HGAPs for FF bends (DEA-D38L575) 6.use Cherrill’s estimated LEFF and design APERs for FF sexts (1.625SX3.53) 7.remove FF octupoles & decapoles 8.add Q-BPMs to all quads and sexts from QD18X to FD 9.add IP-BPMs to FD quads and sexts 10.add MOVERs to all FF quads and sexts 11.add diagnostics stations (extLW,FONT,nBPM,IPBPM)... just reserve spaces for now 12.add Glen's feedback devices (or adjust optics to use "existing" devices?) 13.add IP BSMs for commissioning (carbon wire scanner, Honda monitors) 14.add sweeping magnet for IP position scan 15.add 5 stripline BPMs (for commissioning) 16.add 2 ICTs 17.add 4 screen monitors plus 1 OTR monitor 18.add 4 reference cavities for Q-BPMs... one at start of each straight segment 19.add MARKER points to locate start and end of FD table (CLIC table: L = 240 cm) 20.collimators? 21.dipole correctors in FF? 22.add vacuum component callouts (tees, pumps,... )... MARKER points Questions

Mark Woodley, SLACATF2 Project March 20-21, IDX skew quads will be located optimally in EXT for correction of vertical dispersion; EXT chromatic correction sextupoles will not be installed initially, but locations for them will be reserved and optics will be created; FF sextupoles will be adjusted 2.average measured QEA effective length = cm 3.“rule of thumb”: core length (17.72 inches) + bore radius (25 mm) = m 4.LEFF = 100 mm; APER = mm (from FFTB DIMAD deck) 5.LEFF = cm; full gap = 3.81 cm 6.LEFF = mm; APER = mm (from SLC FF TRANSPORT deck) 7.octupoles and decapoles will be removed from the deck 8.Q-BPMs at downstream ends of magnets; 27 mm from magnet face 9.per Honda-san’s and Okugi-san’s drawings: upstream face for sextupoles; downstream face for quadrupoles; 82.5 mm from magnet face 10.MARKER point at each magnet’s center 11.from Honda-san’s “Re-location session summary” from 3 rd Project Meeting FONT: in the coupling correction section extLW (μ-size): downstream of QF19X (need “small spot” optics) extLW (2D): downstream of QD20X nBPM: downstream of QF21X IPBPM: downstream of QM11 12.see Glen 13.initial guess ±30 cm from IP (need magnet settings for scanning beam waist upstream and downstream of IP) … Okugi-san will ask Shintake monitor group for their space requirements 14.downstream of QD0 … need to know space requirements for sweeper magnet 15.no stripline BPMs needed 16.near QF19X; near dump 17.near QF1X; between QD10 and QF9; upstream of SF1; near dump; OTR at downstream end of septum BS3X 18.upstream of QD18X; downstream of B5; downstream of B2; downstream of B1 19.start: 245 mm upstream of SF1 centerline; end: 245 mm downstream of QD0 centerline 20.no collimators (to begin with) 21.for commissioning … needs study 22.see Terunuma-san Answers