Speaker
Description
Twin electron bunches accelerated by high-energy linacs are attracting increasing interest especially in twin free-electron laser (FEL) pulse generation and beam-driven plasma wakefield acceleration (PWFA) studies. High-energy linacs may benefit from plasma accelerators, where a trailing bunch is accelerated in GV/m fields in a plasma wave driven by the driving bunch. This could facilitate high-energy physics, as well as greatly increase the available photon energy range of existing FELs without increasing the footprint. Here, an analytical model of twin-bunch acceleration in linac is developed and studies of twin-bunch generation based on the European XFEL and FLASH lattices are carried out. With the initial beam longitudinal phase space properly tuned by shaping he gun laser, together with optimized linac settings, high-quality twin electron bunches with controllable delay and simultaneous bunch shaping can be generated, which is extremely important for beam quality preservation and high-efficiency acceleration in PWFA.
| Region represented | Europe |
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| Paper preparation format | LaTeX |
