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Power Systems for High Power Accelerators Klystron Large device - Modulation cavities

Power Systems for High Power Accelerators Klystron Large device - Modulation cavities Max efficiency at Full power Inductive Output Tube Technology (IOT) Smaller device - anode modulation Higher Efficiency and at < Full Yet to be developed at the power level required

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Power Systems for High Power Accelerators Klystron Large device - Modulation cavities

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  1. Power Systems for High Power Accelerators • Klystron • Large device - Modulation cavities • Max efficiency at Full power • Inductive Output Tube Technology (IOT) • Smaller device - anode modulation • Higher Efficiency and at < Full • Yet to be developed at the power level required • Power supply development of application to all high power • accelerating systems

  2. Neutrino Factory Front End - ~20 mA source RFQ1 2.2 MeV RFQ2 7 MeV SDTL 120 MeV H_ DTL 20 MeV Chopper ESS Front End - 70 mA source RFQ 2.5 MeV DTL 20 MeV H_ CCDTL 100 MeV Chopper Funnel

  3. Targetry – Study of the solid target option Liquid Metals - Studied by CERN & US - Interaction with the capture magnet - stability of a liquid jet over long distances - what happens to the jet after the beam hits it Solid Target - Not being studied elsewhere - Radiation cooled PT4 - huge capacity for power removal - Performance due to shock stress is unknown (lifetime issues).

  4. Proposed Target Programme Electron beam tests high power density high repetition rate cheap - many samples - reproducibility  small volumes Proton beam tests  high power density  low repetition rate  expensive - few samples - instrumentation  large volumes ISOLDE and Brookhaven are options

  5. Target Levitation and Drive Systems Hot targets radiating power rules out mechanical support Alternative of magnetic levitation and drive initial study suggests it is feasible Need more detailed design Propose a prototype proof-of-principle model

  6. Capture Studies Pions emitted from target into 4p Capture forward pions Solenoid Channel - Expensive device (20T) Magnetic Horn - Never used at high rep. Rate - Suffers from stress Alternating Gradient Dipole Capture Channel - Simple scheme - Good Capture Efficiency

  7. | SC Linac | SDTL RFQ1 RFQ2 H_ b 0.5 0.7 0.8 Chopper DTL LEP Cavities b=1, to 2.2 GeV Proton Accumulator Ring Bunch Compressor Ring

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