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arXiv 2006.01676physics.acc-phphysics.plasm-ph
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束流驱动等离子体尾场加速器中的能量扩散最小化

Energy spread minimization in a beam-driven plasma wakefield accelerator

R. Pompili, M. P. Anania, M. Behtouei, M. Bellaveglia, A. Biagioni, F. G. Bisesto, M. Cesarini, E. Chiadroni, A. Cianchi, G. Costa, M. Croia, A. Del Dotto, D. D… 展开作者

R. Pompili, M. P. Anania, M. Behtouei, M. Bellaveglia, A. Biagioni, F. G. Bisesto, M. Cesarini, E. Chiadroni, A. Cianchi, G. Costa, M. Croia, A. Del Dotto, D. Di Giovenale, M. Diomede, F. Dipace, M. Ferrario, A. Giribono, V. Lollo, L. Magnisi, M. Marongiu, A. Mostacci, G. Di Pirro, S. Romeo, A. R. Rossi, J. Scifo, V. Shpakov, C. Vaccarezza, F. Villa, A. Zigler

摘要:

下一代基于等离子体的加速器可以在厘米距离内将电子束推到千兆电子伏的能量。由驱动脉冲激发的等离子体产生大的电场,其可以有效地加速拖尾见证聚束,使得从高能对撞机到超亮光源的实验室规模应用的实现成为可能。到目前为止,几个实验已经证明了显着的加速,但由此产生的光束质量,特别是能量扩散,仍然是远离最先进的传统加速器。在这里,我们展示了一个光束驱动的等离子体加速实验的结果,我们使用了电子束作为驱动器,其次是超短证人。该实验首次展示了一种创新方法,可实现约0.1%的加速见证的超低能量扩展。这比迄今为止所获得的数量级要小。其结果可能会导致一个重大的突破,对等离子体加速过程的优化,并在即将推出的紧凑型机器面向用户的应用程序的实施。

英文摘要:

Next-generation plasma-based accelerators can push electron bunches to gigaelectronvolt energies within centimetre distances. The plasma, excited by a driver pulse, generates large electric fields that can efficiently accelerate a trailing witness bunch making possible the realization of laboratory-scale applications ranging from high-energy colliders to ultra-bright light sources. So far several experiments have demonstrated a significant acceleration but the resulting beam quality, especially the energy spread, is still far from state of the art conventional accelerators. Here we show the results of a beam-driven plasma acceleration experiment where we used an electron bunch as a driver followed by an ultra-short witness. The experiment demonstrates, for the first time, an innovative method to achieve an ultra-low energy spread of the accelerated witness of about 0.1%. This is an order of magnitude smaller than what has been obtained so far. The result can lead to a major breakthrough toward the optimization of the plasma acceleration process and its implementation in forthcoming compact machines for user-oriented applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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