| Paper |
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| THP05 |
Superconducting beta=0.15 Quarter-Wave Cavity for RIA
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605 |
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- M. Kelly
ANL, Argonne, Illinois
- Z.A. Conway, J.D. Fuerst, M. Kedzie, K.W. Shepard
ANL/Phys, Argonne, Illinois
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A production-design 115 MHz niobium quarter-wave cavity with a full stainless steel helium jacket has been built and tested as part of the R&D for the Rare Isotope Accelerator (RIA) driver linac. The two-gap cavity is designed to accelerate ions over the velocity range 0.14<β<0.24. Processing of the cavity RF surfaces, including high-pressure rinsing and assembly of the cavity with a moveable high-power RF coupler were all performed under clean room conditions. Cold test results including high-field cw operation, microphonics, and helium pressure sensitivity will be presented in this paper. Performance of a pneumatically actuated slow-tuner device suitable not only for this cavity but a number of other cavities required for RIA will also be discussed.
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