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Normal Conducting RF

Normal Conducting RF. Derun Li Center for Beam Physics Lawrence Berkeley National Laboratory March 5-6, 2013. 805 MHz Modular Cavity. Modular cavity complex. MTA Solenoid. Cavity support rail. Modular cavity design and fabrication

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Normal Conducting RF

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  1. Normal Conducting RF Derun Li Center for Beam Physics Lawrence Berkeley National Laboratory March 5-6, 2013

  2. 805 MHz Modular Cavity Modular cavity complex MTA Solenoid Cavity support rail Derun Li | DOE Mini-Review of MAP (FNAL, March 5-6, 2013) • Modular cavity design and fabrication • New RF cavity to replace the damaged 805-MHz LBNL pillbox cavity for normal conducting RF experiments at the MTA • New waveguide coupler that fits inside the MTA solenoid • Cavity fabrication uses the state-of-art of techniques developed at SLAC • RF breakdown studies in external magnetic field • Modular design for testing of different materials (beryllium, copper), surface finish and processing (EP, brite-dip, etc..) end-plates • Different cavity lengths (time transit factor)

  3. 201 MHz Cavity Program Configuration of cavity and the vessel Loop coupler Loop coupler Tuner actuator (above) Tuner arms (below) 6 Tuners Vacuum pump Single cavity vessel Derun Li | DOE Mini-Review of MAP (FNAL, March 5-6, 2013) • Cavity testing vessel at Fermilab • Dimensions and features similar toMICE RFCC vacuum system • RF commissioning and testing with external magnetic field • Will require a coupling coil magnet for testing at MTA

  4. Goals for FYs13,14 and 15 Derun Li | DOE Mini-Review of MAP (FNAL, March 5-6, 2013) • NCRF cavity design and testing • Fabrication, installation and testing at MTA of the SLAC 805-MHz pillbox cavity • Design studies of new 805-MHz cavity and coupler for late-stage cooling channels (Guggenheim, HCC and FOFO-snake) • Design optimization through MP, FE simulation studies in external magnetic fields • Cavity material and coatings • RF coupler • Time-transit factor • Integration of the RF cavity into the late-stage cooling channel and testing • Ceramic loaded RF cavity study and integration with cooling channel • High power test of new 805-MHz cavity in multi-Tesla magnetic fields • Prototype HPRF cavity design, fabrication, integration and testing • MICE cavity production and support • RF cavities for two RFCC modules • Support of MICE RFCC module installation, commissioning and operation • Support of MICE LLRF control • ALD of MICE cavities • Continue systematic RF breakdown studies at different frequencies, stored energy, external magnetic fields • Experimental studies and development of theory

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