Author/Authors :
Alesini، نويسنده , , D. and Falone، نويسنده , , A. and Migliorati، نويسنده , , M. and Mostacci، نويسنده , , A. and Palpini، نويسنده , , F. S. Palumbo، نويسنده , , L. and Spataro، نويسنده , , B.، نويسنده ,
Abstract :
The paper presents the design of an X-band accelerating section for linearizing the longitudinal phase space in the Frascati Linac Coherent Light Source (SPARC). The nine cells structure, operating on the π standing wave mode, is fed by a central coupler and has been designed to obtain a 42 MV/m accelerating gradient. The two-dimensional (2D) profile has been obtained using the electromagnetic codes Superfish and Oscar-2D while the coupler has been designed using HFSS. Bead-pull measurements made on a copper prototype have been performed and the results are illustrated and compared with the numerical predictions. Mechanical details of the realized prototype and RF properties of the structure as a function of the assembly characteristics are also discussed.
