ILC Gradient R&D Progress and Challenges in Accelerator Technology
Explore the latest advancements and hurdles in the ILC Gradient R&D, including the successful accomplishment of goals, reduction of gradient scatter, and plans for future developments. Discover the ongoing efforts to push the gradient envelope, improve fabrication processes, qualify new vendors, and enhance field emission monitoring. Stay informed about the strategic agenda, regional status reports, R&D plans, and initiatives for cost reduction and enhanced performance in the field of accelerator technology.
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Presentation Transcript
ILC Gradient R&D Rongli Geng Jefferson Lab ILC Main Linac WebEx Meeting July 28, 2010
Gradient Progress Accomplishment of TDP-1 goal 50% production yield Pushing envelope of practical gradient 40 MV/m in 9-cell TESLA shape cavity Success of globally coordinated S0 program Reduced field emission Improved understanding of gradient limit Optimized EP parameters/cavity handling proc. Information feedback from lab to industry Successful qualification of cavities from new vendors Now 3 ILC qualified vendors: RI, ZANON, AES More on the way: MHI, Niowave/Roark, Hitachi, Toshiba
Gradient Challenge Reduce gradient scatter due to local defect Further progress depends on fab/mat improvement Priority of S0 program for TDP-2 Mitigate increased field emission risk High gradient operation (up to ~ 38 MV/m?) of some cavities due to the updated scheme of averaging gradient Irreversible field emitter turn on at high gradient Reduce cost per MV/m Push gradient envelope for TeV ILC upgrade
BAW-1 Agenda Review gradient progress Overview (RG) Regional status reports (Hitoshi Hayano, Mark Champion, TBD) Near term R&D plan Fabrication/mat improvement (XFEL/HiGrade) New vendors and new cavities (H. Hayano, M. Champion) Repair methods (H. Hayano) Hydroformed cavities (M. Champion) Destructible 9-cell cavity (Mark Champion, RG) Field emission monitoring (TBD) Long term R&D plan Cost reduction per MV/m Large grain cavity and multi-wire slicing (K. Saito) Vertical EP and mechanical polishing for bulk removal (C. Crawford) Bulk removal by BCP and RF test w/o final EP (RG) Performance enabling alternative concepts (RG)
