DTC Lattice and RF Systems for High-Energy Research
Explore the DTC Lattice structure and RF systems designed for high-energy particle research, including details on phase trombone extraction, arc cells, wiggler parameters, and RF cavity configurations. Learn about the potential power output and energy losses in different operational modes.
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Presentation Transcript
DR 3.242 km DTC Lattice 7 July 2011 D. Rubin
DTC01 layout Phase Trombone Extraction 1. Circumference = 3242.9m, 712m straights 2. ~ 6 phase trombone cells 3. 54 1.92m long wigglers wiggler period = 32cm 12-poles Bmax = 2.1T 4. Space for 16 RF cavities Cryostats for upper and lower positron rings are interleaved RF Injection Chicane Wigglers
Arc cell - FDBDF b[m] 10 15 20 25 30 35 40 0 5 Cell length = 10.93m Bend length = 3.0m 75 cells/arc 0 hx by bx 2 4 s[m] 6 8 10 h[cm]
DTC01 lattice functions bx[m] by[m] h[cm] 20 40 60 80 20 40 60 80 20 40 60 0 0 0 0 500 1000 1500 s[m] 2000 2500 3000
Circumference changing chicane b[m] 10 15 20 25 30 35 40 45 50 0 5 0 hx by bx 20 40 60 s[m] 80 100 120 140 160 h[cm]
wiggler b[m] 32cm wiggler params 10 15 20 25 30 35 40 0 5 0 hx by bx 2-32cm wiggler cells 12 poles 32cm period Wiggler length = 1.92m Cell length = 7.56 m 2 4 6 s[m] 8 27 wiggler cells 10 12 14 h[cm]
DTC01 Parameter 10 Hz(Low) 5 Hz (Low) 5 Hz (High) Circumference 3.248 km 3.248 km 3.248 km RF frequency 650 MHz 650MHz 650 MHz x/ y [ms] z [ms] s [mm] p x [ m] RF [MV] (12 cavities) Total/Per cav 13.5 24.1 24.1 6.7 12.0 12.0 6 6 6 0.134% 0.11% 0.11% 3.3 X 10-4 3.3 X 10-4 3.3 X 10-4 2.6 4.6 4.6 19.7/1.64 14 /1.17 14/1.17 x/ y Wigglers- Ncells@B[T] Energy loss/turn [MeV] -50.9/-44.1 -51.3/-43.3 -51.3/-43.3 27@2.1 27@1.5 27@1.5 8.0 4.5 4.5 sextupoles 3.34/-4.34 3.34/-4.23 3.34/-4.23 Power/RF coupler @400mA [kW] 267 150 300
RF The lattice can accommodate 16 RF cavities If we assume 12 then Voltage/ cavity in 10Hz mode is 1.64 Power/coupler in 5Hz, high power mode is 300kW
Dynamic aperture 5 Hz Periodic type wiggler model, includes vertical focusing and cubic nonlinearity
Dynamic aperture 10 Hz Periodic type wiggler model, includes vertical focusing and cubic nonlinearity
Magnet count Element Length[m] Strength Number Arc Dipoles 3 2.28 kG 150 Circumference changing chicane dipoles 1 2.68 kG 28 Other dipoles 2 < 2.28 kG 4 < 0.6 m-2 Arc Quadrupoles 0.6 450 < 0.55 m-2 Quadrupoles in dispersion suppressor and straights 0.3 211 < 4.34 m-3 Sextupoles 0.3 600 RF cavities 3 < 1.64MV 12 Wigglers 1.92 54 54
