1. November 2005M. Woodley1 ILC Beam Delivery System layout with end-of-linac undulator

2. November 2005M. Woodley2 ILC e+ production system layout (end of linac) ============================================== electron side - undulator length = 250 m (200 m active undulator + 40 m FODO focusing + 5 m at each end for other stuff) - gamma drift = 1 km (end of undulator to target) - tunnel separation = 3 m (BDS tunnel centerline to gamma beam centerline, at target) - consumable/renewable MPS betatron collimation u/s of undulator (three 25 m 60° undulator FODO cells) … Ax,Ay ≈ 2 mm (< undulator aperture radius) - energy diagnostic chicane upstream of undulator - 100 m fast extraction to "low power" dump upstream of undulator (~500 bunches @ 500 GeV occasionally) - common BDS 3 mrad arc (for 14 mrad IR) - ≈1 μm minimum beam size diagnostic section (three 45° FODO cells) - pulsed extraction to "full power" (18 MW) tuneup dump - 8 mrad big bend (for 2 mrad IP) - FF9 collimation/FF - Yuri's latest dump lines positron side + ≈1 μm minimum beam size diagnostic section (three 45° FODO cells), including consumable/renewable MPS betatron collimation … Ax,Ay ≈ 8 mm (< BSY quadrupole aperture radius) + energy diagnostic chicane + fast extraction (pulsed in tuneup mode) to "full power" (18 MW) dump + 8 mrad big bend (for 2 mrad IP) + FF9 collimation/FF + Yuri's latest dump lines

3. November 2005M. Woodley3 ILC e+ production system layout (end of linac) ============================================== electron beamline segments MPSCOL = 75 m !MPS collimation / betatron oscillation detection MPSCHIC = 100 m !MPS chicane for energy offset detection FEX = 100 m !kickers + drift (T. Mattison "Limited Aperture" parameters) UND = 250 m !200 m active undulator + 40 m FODO + 10 m extra EBSYARC = 45 m !3 mrad arc (bending radius ≈ 14.5 km) SKEW = 200 m !50 m for e-/γ separation + NLC skew correction section DIAG = 100 m !65 m beta, 1.15 um spot at quad center (1 TeV cm, γε y = 2×10 -8 m) TUX = 50 m !pulsed bends + drift (pulsed bends twice as strong as kickers) BIGB = 115 m !8 mrad arc (bending radius ≈ 14.5 km) IRT = 115 m !same as BIGB FF9P = 2140 m !polarimeter chicane + match + FF9 EX14 = 400 m !Yuri's 14 mrad dump line (051004) EX2 = 680 m !Yuri's 2 mrad dump line (050812) positron beamline segments SKEW = 150 m !NLC skew correction section DIAG = 100 m !65 m beta, 1.15 um spot at quad center (1 TeV cm, γε y = 2×10 -8 m); !includes MPS collimation / betatron oscillation detection FEX/TUX = 100 m !kickers + drift (T. Mattison "Limited Aperture" parameters); !includes pulsed bends for tuneup mode BIGB = 115 m !8 mrad arc (bending radius ≈ 14.5 km) IRT = 115 m !same as BIGB FF9P = 2140 m !polarimeter chicane + match + FF9 EX14 = 400 m !Yuri's 14 mrad dump line (051004) EX2 = 680 m !Yuri's 2 mrad dump line (050812)

4. November 2005M. Woodley4 10 mrad MPS-coll chicane FEX 7 mrad undulator 3 mrad arc skew ε-diag TUX 8 mrad arc IRT  -line target e+ capture 3 m e+ return IR1 14 mrad IR2 2 mrad skew ε-diag + MPS-coll chicane FEX/TUX IRT e+ return under BDS 8 mrad arc