A U.S. Department of Energy Office of Science Laboratory Operated by The University of Chicago Argonne National Laboratory Office of Science U.S. Department of Energy Joint ANL/FNAL Cavity Surface Processing Facility May 11, 2005 Speaker: Mike Kelly

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 2 Why Build a Joint Cavity Processing Facility? ANL Fermilab SMTF and International Linear Collider (ILC) 8 GeV Proton Injector Rare Isotope Accelerator 4 th Generation Light Source Beta~0.1 Beta=1  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 Low and high-beta groups have operated independently

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 3 Participants: Fermilab Argonne (Physics Division) Design, Development, Operation Ken Shepard Michael Kelly Mark Kedzie Zachary Conway Joel Fuerst *Acknowledgment Kwang-Je Kim (ANL) 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.

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 4 Fermilab BCP at the Joint Processing Facility 3 rd 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

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 5 ANL Prototype Cavities for RIA 0.1<  < MHz  =0.5 Triple-spoke 345 MHz  =0.62 Triple-spoke 115 MHz  =0.15 Quarter-wave 172 MHz  =0.24 Half-wave 345 MHz  =0.4 Double-spoke 325 MHz  =0.22 Single-spoke Spoke Cavities for the Fermilab Proton Driver

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 6 Background  Construction and operation is jointly funded by Argonne and Fermilab  Location: Argonne National Laboratory, Building 208, B101 (2000 ft 2 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

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 7 (Processing of the rf surface is at the heart of cavity performance) A Joint ANL/FNAL Cavity Processing Facility  Buffered Chemical Polishing (BCP)  Electropolishing (EP)  Ultrasonic cleaning  Ultrapure high-pressure water rinsing  Cleanroom assembly of rf devices (single cavities, couplers) Can provide a valuable support facility for SMTF at Fermilab Comprehensive surface processing capability for SC cavities and related hardware using:

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 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

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 9 Layout: ANL/FNAL Cavity Processing Facility 60 feet ANL Chemistry Room Fermilab Chemistry Room Scrubber Anteroom Mezzanine ANL Cleanroom FNAL Cleanroom

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 10 Phase I: The Joint ANL/FNAL Chemistry Facility Chemical Processing Rooms Air Scrubber

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 11 Chemistry Room Hardware Installation of Cavity Etching Hood 3/25/05

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 12 Fermilab BCP Apparatus Fermilab BCP Control Panel 13 feet Cristian Boffo – Tech. Div. Luciano Elementi – Tech. Div. Yuri Terechkine – Tech. Div.

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 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)

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 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

Pioneering Science and Technology Office of Science U.S. Department of Energy ACC Review May 10-12, 2005 Michael Kelly, ANL Physics Division 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