crossing angle (high): 20.000 (mrad)crossing angle (low ): 30.000 (mrad) dX (IP) = 18.129268 (m)dZ (IP) = 440.000000 (m) dS (high) = 414.791875 (m)dS (low ) = 465.230146 (m)

NLC2001

(Δε/ε)ISR=17%@ 500 GeV

(Δε/ε)ISR=30%@ 500 GeV

NLC2001

13 MW dump(end of linac)

140 kW dump(tune up)

20 kW stopper(tune up)

crossing angle (high): 20.000 (mrad)crossing angle (low ): 30.000 (mrad) dX (IP) = 34.485500 (m)dZ (IP) = 149.909621 (m) dS (high) = 0.000000 (m)dS (low ) = 299.792101 (m)

NLC2002

(Δε/ε)ISR=13%@ 500 GeV

(Δε/ε)ISR=25%@ 500 GeV

crossing angle (high): 20.000 (mrad)crossing angle (low ): 30.000 (mrad) dX (IP) = 34.949323 (m)dZ (IP) = 149.909774 (m) dS (high) = 0.000000 (m)dS (low ) = 299.792458 (m)

NLC2003

(Δε/ε)ISR=15%@ 500 GeV

(Δε/ε)ISR=27%@ 500 GeV

NLC2003

20 kW stopper(tune up)

140 kW dump?(tune up)

13 MW dump?(end of linac)

High Energy Final Focus

• “full length” Raimondi/Seryi compact system (TRC), 3.51 m L*

• bend scaling optimized for 500 GeV cm• “short” superconducting final doublet optimized for

500 GeV cm (2 m QF1, 2.2 m QD0)• “large” detector with 5 T field

Low Energy Final Focus

• “intermediate length” Raimondi/Seryi compact system, 3.51 m L*

• bend scaling optimized for 500 GeV cm• “short” superconducting final doublet optimized for

500 GeV cm (2 m QF1, 2.2 m QD0)• “large” detector with 5 T field

Dump Lines

• Yuri’s most recent modifications• add 100 m drift before dump (for dump/IP separation)• masking in 100 m drift to absorb beamstrahlung

gammas from 800-1000 μrad

High Energy Final Focus: Additions & Beautifications

• spoilers and absorbers with real physical lengths located per Lew’s table (next slide)

• 11 protection collimators (PCs)• 2 photon masks• collimator/mask gaps/bores per Lew’s table for tail-

folding octupoles OFF (even though the octupoles are ON in the deck)

• 3 PPS stoppers• 2 muon spoilers (9 m and 18 m)• bore of QM11-16 increased from 2 cm to 4 cm