| Paper | Title | Page |
|---|---|---|
MOPB021 |
Energy Stabilization of High-charge Laser Plasma Accelerator Electron Beams via Hybrid Plasma Dechirper | |
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| As the beam quality of laser plasma accelerators (LPAs) improves, potential application of an LPA as the injector of a booster of a synchrotron light source becomes more and more realistic. Even though, it is still very challenging because the energy jitter and energy spread of the-state-of-the-art LPAs are not small enough. There have been proposals, which are successful to suppress the energy jitter and energy spread simultaneously by implementing magnetic chicane together with active dechirper, for relatively low charge conditions (e.g., tens of pC). However, this method is not very effectivewhen the bunch charge becomes an order of magnitude higher due to the heavy beam loading. In this paper, we present a novel method which can suppress the energy jitter and reduce the energy spread simultaneously even with heavy beam loading. Preliminary particle-in-cell (PIC) simulations showed that such a design can reduce the energy jitter and energy spread of the 500 pC bunches from ±2% and 2.39% to less than 0.33% and 0.8%, respectively, with high transmission efficiency (>89%). | ||
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TUXA01 |
Studies of Injection Mechanism Optimization and Radiation Reaction in Plasma Wakefield Accelerators | |
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| Laser or charged beam driven plasma wakefield accelerators (PWAs) are considered as the accelerators of the next generation. Before the actual applications of PWAs in a wide range of disciplines, the output beam quality parameters require further improvements. Especially, the output beam charge and energy spread are contradictory parameters for optimization. This talk will present the recent works on the simultaneous optimization of the output beam charge and energy spread at Institute of High Energy Physics (IHEP), Chinese Academy of Sciences. In addition, this talk will present the work of modeling the betatron oscillation in long-distance PWAs by considering the higher-order electromagnetic field structure and the radiation reaction effect, and show new phenomena based on this model. This model is useful for the beam optimization in future long-distance and high-energy PWAs. | ||
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