Study on TESLA cavity shape

A new 9-cell cavity shape is designed for Tev Superconducting Linear Accelerators (TESLA). The ratio of the maximal surface electric field to the accelerating gradient, E/sub pkE/sub acc/, was lowered down to 2.024 in the center cell while the cell to cell coupling is 1.95% for the 1.3 GHz accelerating mode. The properties of the higher order modes were investigated with a "dissipated band model".<
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