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1.3 GHz FNAL Dressed Cavity

1.3 GHz FNAL Dressed Cavity. S-1 Global Deliverable to KEK. 7 July 2009. S1-Global Cryomodule. Fermilab is committed to global international design and collaboration. 4 KEK cavities. Goal: Demonstrate a cryomodule with an average accelerating gradient of 31.5 MV/m. 2 DESY, 2 FNAL cavities.

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1.3 GHz FNAL Dressed Cavity

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  1. 1.3 GHz FNALDressed Cavity S-1 Global Deliverable to KEK 7 July 2009

  2. S1-Global Cryomodule Fermilab is committed to global international design and collaboration. 4 KEK cavities Goal: Demonstrate a cryomodule with an average accelerating gradient of 31.5 MV/m 2 DESY, 2 FNAL cavities

  3. INFN Bladetuner Installation Issues with KEK WPM & Heat Shields

  4. Motor Interference with Shield andKEK WPM Pipe

  5. According to INFN, the piezos must be mounted in the horizontal position. In this position, the motor interferes with the KEK WPM pipe.

  6. Current Dressed Cavity Design • 2 Dressed cavities • HOM couplers, cables, heat sinks • 2 He Supply pipe bellows • 2 Inter-cavity bellows • Warm and cold couplers • Magnetic shielding as shown • Bladetuner with motor • Seals • Cables • Hardware as shown Magnetic shielding not shown

  7. Current Dressed Cavity Design • 2 Dressed cavities • HOM couplers, cables, heat sinks • 2 He Supply pipe bellows • 2 Inter-cavity bellows • Warm and cold couplers • Magnetic shielding as shown • Bladetuner with motor • Seals • Cables • Hardware as shown Magnetic shielding shown

  8. Bladetuner Cables

  9. Potential Issues • Needle bearings • Main coupler external mounts, hardware, alignment tooling for installation • Magnetic shielding interface with DESY cavities • 2-phase He pipe cut-offs and welding the bellows into the system • Heat-sink straps for coupler shields • Gatevalves / 90 deg valves / blankoffs

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