在等离子体调制等离子体加速器中的多GeV唤醒场加速.
J J van de Wetering1, S M Hooker1, R Walczak1,2
1John Adams Institute for Accelerator Science and Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom.
Physical review. E
|March 16, 2024
概括
激光调制等离子加速器 (P-MoPAs) 通过控制激光和等离子参数,可以将唤醒幅度提高72%. 这使得千赫兹速率的多GeV电子加速成为可能,为先进的粒子加速提供了一个有前途的途径.
科学领域:
- 等离子体物理学的物理学
- 激光与等离子体相互作用
- 粒子加速 粒子加速
背景情况:
- 等离子调制等离子加速器 (P-MoPAs) 为粒子加速提供了一种新的方法.
- 优化激光脉冲和等离子体之间的相互作用对于高效的能量传输至关重要.
研究的目的:
- 用理论和模拟方法研究P-MoPAs的加速器阶段.
- 探索控制P-MoPAs中振幅和电子能量增益的方法.
主要方法:
- 使用了对轴波方程和粒子在细胞 (PIC) 模拟.
- 分析了激光和等离子体参数对脉冲时间概况和唤醒生成的影响.
- 研究了横向模式振荡和罗森布鲁斯 - 脱调效应.
主要成果:
- 在P-MoPAs中控制的时间脉冲形状,与等离子波节拍加速器相比,增加了高达72%的唤醒幅度.
- 罗森布鲁斯 - 的调节被发现对于低于30脉冲的脉冲列车是可以忽略的.
- 在PIC模拟中,对于特定的激光脉冲能量,电子能量的增益为1.5-2.5 GeV.
结论:
- 通过调节器阶段参数调整,P-MoPAs可以显著控制唤醒幅度.
- 该P-MoPA设计减轻了脱问题,并显示了多GeV电子加速的潜力.
- 高重复率的薄盘激光器可以驱动P-MoPA,以实现高效,高通量粒子加速.
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