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Joint ANL/FNAL Cavity Surface Processing Facility

Joint ANL/FNAL Cavity Surface Processing Facility. May 11, 2005. Speaker: Mike Kelly. Why Build a Joint Cavity Processing Facility?. Low and high-beta groups have operated independently. Beta=1. Beta~0.1. ANL. Fermilab. SMTF and International Linear Collider (ILC) 8 GeV Proton Injector.

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Joint ANL/FNAL Cavity Surface Processing Facility

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  1. Joint ANL/FNAL Cavity Surface Processing Facility May 11, 2005 Speaker: Mike Kelly

  2. Why Build a Joint Cavity Processing Facility? Low and high-beta groups have operated independently Beta=1 Beta~0.1 ANL Fermilab SMTF and International Linear Collider (ILC) 8 GeV Proton Injector Rare Isotope Accelerator 4th Generation Light Source • There has been a convergence of interest in the past decade between the low- and high-beta communities • (1) Techniques needed to achieve state-of-the-art are similar • (2) We are filling in the region between low- and high-beta with new cavity types

  3. Participants: Fermilab Argonne (Physics Division) Design, Development, Operation Ken Shepard Michael Kelly Mark Kedzie Zachary Conway Joel Fuerst Design and Development Cristian Boffo – Tech. Div. Gerry Davis – Tech. Div. Luciano Elementi – Tech. Div. Yuri Terechkine – Tech. Div. Dan Assell – Tech. Div. Dean Connelly – Tech. Div. Operation Allan Rowe – Acc. Div. Wade Muranyi – Acc. Div. Mike Heinz – Acc. Div. Mike Rauchmiller – Acc. Div. Marco Battisoni – Tech. Div. *Acknowledgment Kwang-Je Kim (ANL)

  4. Fermilab BCP at the Joint Processing Facility 3rd Harmonics Multi-cell TESLA 9-cell cavity Deflecting Mode • Fermilab’s BCP design is driven by the requirements to process the 1.3 GHz Tesla 9-cell cavities

  5. ANL Prototype Cavities for RIA 0.1<b<0.8 115 MHz =0.15 Quarter-wave 172 MHz =0.24 Half-wave 345 MHz =0.4 Double-spoke 345 MHz =0.5 Triple-spoke 345 MHz =0.62 Triple-spoke Spoke Cavities for the Fermilab Proton Driver 325 MHz =0.22 Single-spoke

  6. Background • Construction and operation is jointly funded by Argonne and Fermilab • Location: Argonne National Laboratory, Building 208, B101 (2000 ft2 high-bay) • 2005 is the final year of a 3 year construction phase • Capital cost: ~$1 million • ANL funding from the laboratory director’s discretionary funds (LDRD) • Fermilab funding from lab discretionary funds

  7. A Joint ANL/FNAL Cavity Processing Facility (Processing of the rf surface is at the heart of cavity performance) Can provide a valuable support facility for SMTF at Fermilab Comprehensive surface processing capability for SC cavities and related hardware using: • Buffered Chemical Polishing (BCP) • Electropolishing (EP) • Ultrasonic cleaning • Ultrapure high-pressure water rinsing • Cleanroom assembly of rf devices (single cavities, couplers)

  8. Layout, Design and Principal Areas • Two large sealed chemistry areas with a large air scrubber • Remotely controlled BCP and EP operations • A large clean anteroom (gowning & ultrasonic cleaning of hardware) • Two separate class 100 or better clean areas with a dedicated high pressure rinse capability

  9. Layout: ANL/FNAL Cavity Processing Facility ANL Cleanroom ANL Chemistry Room Mezzanine Anteroom Scrubber FNAL Cleanroom Fermilab Chemistry Room 60 feet

  10. Phase I: The Joint ANL/FNAL Chemistry Facility Chemical Processing Rooms Air Scrubber

  11. Chemistry Room Hardware Installation of Cavity Etching Hood 3/25/05

  12. Fermilab BCP Apparatus 13 feet Cristian Boffo – Tech. Div. Luciano Elementi – Tech. Div. Yuri Terechkine – Tech. Div. Fermilab BCP Apparatus Fermilab BCP Control Panel

  13. Facility Status: Chemistry Rooms • External structure complete (Fall 2004) • Internal hoods and ductwork largely complete • A preliminary test of a Fermi BCP apparatus complete; this hardware will be reassembled shortly at ANL • Memorandum of understanding to be drafted (May 2005) - Operations and maintenance of the facility • Safety documentation to be drafted and presented to ANL safety (May 2005). This will be done separately for each laboratory • A full ANL safety committee review of ANL operations summer 2005 followed by an ANL safety committee review of FNAL operations • Full chemistry room operations are planned for fall 2005 (by ANL) and for early 2006 (by FNAL)

  14. Facility Status: Clean room, water system • Ultra pure DI water system contract will be awarded (May 2005) • Mezzanine and floor preparation out for bids; complete in June 2005 • Clean room bid package is complete; potential contractors are identified • Clean room construction scheduled for August 2005

  15. Summary comments:The new Joint Cavity Processing Facility will • Provide a state-of-the-art cavity processing capability for SMTF and several large projects requiring both beta=1 and reduced beta cavities • Expand and/or develop the technical expertise needed to produce high performance superconducting rf cavities • Provide for an interchange and collaboration between those working toward the ILC and other development groups

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