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- S. Doebert, R. Corsini, R. Fandos, A. Grudiev, E. Jensen, T. Ramsvik, J. A. Rodriguez, J. P.H. Sladen, I. Syratchev, M. Taborelli, F. Tecker, P. Urschütz, I. Wilson, W. Wuensch
CERN, Geneva
- Ö.M. Mete
Ankara University, Faculty of Engineering, Tandogan, Ankara
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The CLIC study is investigating a number of different materials at different frequencies in order to find ways to increase achievable accelerating gradient and to understand what are the important parameters for high-gradient operation. So far a series of rf tests have been made with a set of identical-geometry 30 GHz and X-band structures in copper, tungsten and molybdenum. A new test of a 30 GHz copper accelerating structure has been completed in CTF3 with pulse lengths up to 100 ns. The new results are presented and compared to the previous structures to determine dependencies of quantities such accelerating gradient, material, frequency, pulse length, power flow, conditioning rate, breakdown rate and surface damage.
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