| Paper |
Title |
Page |
| THP046 |
Status of 3.9-GHz Deflecting-Mode (CRAB) Cavity R&D
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682 |
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- L. Bellantoni, H. Edwards, M. Foley, T. K. Khabiboulline, D. V. Mitchell, A. M. Rowe, N. Solyak
Fermilab, Batavia, Illinois
- C. Adolphsen
SLAC, Menlo Park, California
- G. Burt, A. C. Dexter
Cockcroft Institute, Lancaster University, Lancaster
- P. Goudket
CCLRC/DL/ASTeC, Daresbury, Warrington, Cheshire
- T. W. Koeth
Rutgers University, The State University of New Jersey, Piscataway, New Jersey
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The superconducting 3.9GHz deflecting mode cavity design which has been under development as a beam slice diagnostic is planned for use as the ILC crab cavity. We describe the applications and review the status of the R & D, giving both prototype test results and computational studies of beam interaction.
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| THP051 |
Status of 3.9-GHz Superconducting RF Cavity Technology at Fermilab
|
695 |
| |
- H. Edwards, T. T. Arkan, H. Carter, C. A. Cooper, M. Foley, E. R. Harms, T. K. Khabiboulline, D. V. Mitchell, D. O. Olis, A. M. Rowe, N. Solyak, S. Tariq
Fermilab, Batavia, Illinois
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Fermilab is involved in an effort to design, build, test and deliver 3.9 GHz superconducting RF cavities with a goal to deliver one 'third harmonic' cryomodule containing four cavities in early 2007 for use at the DESY TTF III Project. The design gradient of these cavities is 19 MV/m. This effort involves design, fabrication, intermediate testing, assembly, and eventual delivery of the four cavity cryomodule. We report on all facets of this enterprise from design through future plans. Included will be early test results of single 9-cell cavities, lessons learned, and other findings.
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| THP061 |
High Field Test Results of Superconducting 3.9-GHz Accelerating Cavities at FNAL
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722 |
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- N. Solyak, H. Edwards, M. Foley, I. G. Gonin, T. K. Khabiboulline, D. V. Mitchell, A. M. Rowe
Fermilab, Batavia, Illinois
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The XFEL facilities are planning to use section with a few third harmonic cavities (3.9GHz) to improve beam performance [1]. Fermilab is developing superconducting third harmonic section for the FLASH(TTF/DESY) upgrade. This section will include four cavities equiped with couplers and blade tuners installed in cryostat. Up to now, two cavities are completed and one of them is under vertical test. The gradient of the cavity was limited by multipactor in HOM coupler. The visual inspection of the HOM couplers after cold tests showed that both couplers were damaged. In paper we discuss the results of vertical tests, multipactoring analysis in HOM coupler and a new design for HOM coupler.
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