重离子驱动等离子体尾场加速中的类漂移相移加速方案
Heavy ion driven plasma wakefield acceleration with drift-like phase-shift acceleration scheme
- Institute of Modern physics, Chinese Academy of Sciences（中国科学院近代物理研究所）
- University of Chinese Academy of Sciences（中国科学院大学）
- University of Manchester（曼彻斯特大学）
- Cockcroft Institute（科克沃尔研究所）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
针对传统密度调制方案尾场退化问题，提出类漂移相移加速方案，通过漂移段控制相移避免退相，模拟显示电子在1.65米内加速至700 MeV，能量展宽5%，并验证了实际可行性。
AI中文摘要：
传统的等离子体密度调制方案可以延长退相长度，但随着等离子体密度的增加，尾场会退化。为解决这一限制，提出了一种类漂移相移加速方案，在等离子体腔之间引入漂移段，以实现受控的相移并避免退相。理想化模拟结果表明，电子在1.65米内从16 MeV加速到700 MeV，能量展宽为5%。此外，引入实际主动等离子体透镜的分段模拟验证了该方案的实际可行性，电子在1.67米内加速至720.5 MeV，能量展宽降低至3.3%。在整个传播过程中，等离子体尾场保持稳健的振幅，表明在模拟区域之外可能继续加速。该方案展示了一种有前景的方式，使尾随束从驱动束的尾部到头部连续获得能量，并为重离子驱动等离子体尾场加速中产生高能量、高质量束流提供了新途径。
英文摘要：
Traditional plasma density modulation schemes can extend the dephasing length but suffer from wakefield degradation as plasma density increases. To address this limitation, a drift-like phase-shift acceleration scheme is proposed, introducing drift sections between plasma cavities to enable controlled phase shifting and avoid dephasing. Idealized simulation results show that electrons are accelerated from 16 MeV to 700 MeV within 1.65 m with an energy spread of 5\%. Furthermore, segmented simulations introducing realistic active plasma lenses verify the practical feasibility of this scheme, electrons are accelerated up to 720.5 MeV with a reduced energy spread of 3.3\% within 1.67 m. The plasma wakefield maintains a robust amplitude throughout the propagation, suggesting the potential for continued acceleration beyond the simulated region. This scheme demonstrates a promising way to enable the witness beam to gain energy continuously from the tail to the head of the driver beam and provides a new approach for generating high-energy, high-quality beams in heavy ion driven plasma wakefield acceleration.
