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SuperB Injector RF Layout: Dual RF Gradient Accelerating Structures Comparison

Explore the RF layout of the SuperB Injector, comparing SLAC-type accelerating structures A, B, C, D with varying gradient capabilities and pros/cons. Learn about RF field medium, klystron power, and modulator efficiency impacting linac design.

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SuperB Injector RF Layout: Dual RF Gradient Accelerating Structures Comparison

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  1. X Injector RF Layout e- DR > 4 GeV e- A C D B L - 0.8 GeV GUN SHB 5.7 GeV 0.8 GeV 0.1GeV > 7 GeV e+ PS e+ DR ACCELERATING FIELD MEDIUM GRADIENT HIGH GRADIENT 23 MV/m 26 MV/m 50 MW klystron 60 MW klystron 55 MW 45 MW X SLED SLED ≈ 210 MeV ≈ 156 MeV

  2. ACCELERATING STRUCTURES The SuperB Injector will make use of SLAC-type, 3 m. long accelerating structures. Main accel. structures parameters

  3. RF LAYOUT A B C D PROS & CONS 23 MV/m +easier RF conditioning lower trip-rate less klystrons -longer linac 26 MV/m +shorter linac -hard RF conditioning higher trip-rate more klystrons (*) high gradient capture linac

  4. ….. RF LAYOUT 2856 MHz 476 MHz 238 MHz DR G SHB DR PS 23 MV/m 36 klystrons + SHB 2856 MHz 476 MHz 238 MHz DR G SHB DR PS 26 MV/m 48 klystrons + SHB

  5. RF Linac Main Specifications (°) 45 MW for the capture sections (°°) 60 MW for the capture sections (°°°) Modulator efficiency ≈ 0.45; HV kly pulse ≈ 6 μsec

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