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Joint ANL/FNAL Cavity Surface Processing Facility - PowerPoint PPT Presentation

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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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why build a joint cavity processing facility
Why Build a Joint Cavity Processing Facility?

Low and high-beta groups have operated independently





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


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.


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)

fermilab bcp at the joint processing facility
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
anl prototype cavities for ria 0 1 b 0 8
ANL Prototype Cavities for RIA 0.1<b<0.8

115 MHz =0.15


172 MHz =0.24


345 MHz =0.4


345 MHz =0.5


345 MHz =0.62


Spoke Cavities for the Fermilab Proton Driver

325 MHz =0.22


  • 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
a joint anl fnal cavity processing facility
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)
layout design and principal areas
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
layout anl fnal cavity processing facility
Layout: ANL/FNAL Cavity Processing Facility

ANL Cleanroom

ANL Chemistry Room




FNAL Cleanroom

Fermilab Chemistry Room

60 feet

phase i the joint anl fnal chemistry facility
Phase I: The Joint ANL/FNAL Chemistry Facility

Chemical Processing Rooms

Air Scrubber

chemistry room hardware
Chemistry Room Hardware

Installation of Cavity Etching Hood 3/25/05

fermilab bcp apparatus
Fermilab BCP Apparatus

13 feet

Cristian Boffo – Tech. Div.

Luciano Elementi – Tech. Div.

Yuri Terechkine – Tech. Div.

Fermilab BCP Apparatus

Fermilab BCP Control Panel

facility status chemistry rooms
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)
facility status clean room water system
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
summary comments the new joint cavity processing facility will
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