独立激光等离子加速器的多阶段合
S Steinke1, J van Tilborg1, C Benedetti1
1Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA.
Nature
|February 2, 2016
概括
分阶激光等离子加速器 (LPA) 克服了激光能量耗尽的局限性. 这项实验成功合了两个LPA阶段,证明了对撞机应用更高电子能量的可行途径.
科学领域:
- 血物理
- 粒子加速
背景情况:
- 与传统方法相比,激光等离子加速器 (LPA) 提供了紧的高能粒子加速.
- 单阶段LPA面临的局限性包括激光衍射,脱相,光束负荷和激光能量耗尽.
- 克服激光能量耗尽需要多阶段加速设计.
研究的目的:
- 为了证明激光等离子加速的可行性.
- 解决LPA中的激光能量耗尽限制.
- 探索用于碰撞器应用的更高电子束能量的途径.
主要方法:
- 使用等离子镜合两个LPA阶段.
- 使用基于排放毛细血管的活性等离子透镜用于电子束聚焦.
- 使用受控电子束到达时间探测唤醒场结构.
主要成果:
- 在LPA阶段之间实现稳定的电子束传输.
- 在第二阶段观察到电子束子集的100兆电子伏能量增长.
- 通过变化电子束到达时间来重建时间唤醒场结构和确定等离子体密度.
结论:
- 阶段化有效地克服了LPA中的激光能量耗尽限制.
- 证明的技术为达到适用于碰撞器应用的电子能量提供了一个有希望的方法.
- 这项工作为开发下一代紧粒子加速器铺平了道路.
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