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Title |
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| THP051 |
Status of 3.9-GHz Superconducting RF Cavity Technology at Fermilab
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695 |
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- 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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| THP053 |
Simulations and Optimizations of a New Power Coupler for 3.9-GHz Superconducting Cavities at Fermilab
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701 |
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- J. Li, I. G. Gonin, T. K. Khabiboulline, D. O. Olis, N. Solyak
Fermilab, Batavia, Illinois
- T. Wong
Illinois Institute of Technology, Chicago, Illinois
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3.9 GHz third harmonic superconducting cavities have been used to increase the peak bunch current and to compensate for non-linear distortions in the longitudinal phase space due to sinusoidal 1.3 GHz accelerating cavity voltage. The power coupler is one of the important and complicated components of the third harmonic system for the TTF3 project. From electromagnetic, multipacting, and thermal simulations of the power coupler, optimized designs have been achieved, enabling one to minimize or eliminate potential problems in advance. This paper presents our recent work on simulation and optimization of the power coupler.
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