Plasma Photocathodes
Plasma Photocathodes
复制标题
DOI：
10.1002/andp.202200655
复制
发表时间：
2023-09
影响因子：
2.4
通讯作者：
A. F. Habib;T. Heinemann;G. Manahan;D. Ullmann;P. Scherkl;A. Knetsch;A. Sutherland;A. Beaton;David Campbell;Lorne Rutherford;Lewis Boulton;A. Nutter;O. Karger;M. Litos;Brendon D. O'Shea;G. Andonian;D. Bruhwiler;G. Pretzler;Thomas Wilson;Zhengming Sheng;Michael Stumpf;L. Reichwein;A. Pukhov;J. Cary;M. Hogan;V. Yakimenko;J. Rosenzweig;B. Hidding
中科院分区：
文献类型：
--
作者：
A. F. Habib;T. Heinemann;G. Manahan;D. Ullmann;P. Scherkl;A. Knetsch;A. Sutherland;A. Beaton;David Campbell;Lorne Rutherford;Lewis Boulton;A. Nutter;O. Karger;M. Litos;Brendon D. O'Shea;G. Andonian;D. Bruhwiler;G. Pretzler;Thomas Wilson;Zhengming Sheng;Michael Stumpf;L. Reichwein;A. Pukhov;J. Cary;M. Hogan;V. Yakimenko;J. Rosenzweig;B. Hidding
等离子体韦克菲尔德加速器提供的加速和聚焦电场比最先进的射频腔体加速器大三到四个数量级。等离子体光电阴极可以在这样的等离子体波内释放超冷电子群，从而打开一条通向可调谐地产生定义明确的紧凑电子束的路径，其归一化发射度和亮度比现有技术好许多个数量级。此类光束将对光源等应用产生深远影响，同时也为高能和高场物理开辟了新的前景。本文综述了等离子体光电阴极的创新，并报道了该方法的实验进展、挑战和未来展望。描述了在E-210：特洛伊木马计划中在SLAC FACET进行的等离子体光电阴极90°几何形状的概念验证演示的细节。利用这些经验，以及理论和模拟支持的进展，对未来实现等离子体光电阴极的前景进行了展望，例如即将在FACET-II上进行的E-310：Trojan Horse-II计划，该计划具有良好的见证光束参数质量，可调性和稳定性。未来在紧凑型混合等离子体韦克菲尔德加速器上安装等离子体光电阴极，将提高容量，并为高亮度电子和光子束相互作用的前沿实验开辟新的能力。
Plasma wakefield accelerators offer accelerating and focusing electric fields three to four orders of magnitude larger than state‐of‐the‐art radiofrequency cavity‐based accelerators. Plasma photocathodes can release ultracold electron populations within such plasma waves and thus open a path toward tunable production of well‐defined, compact electron beams with normalized emittance and brightness many orders of magnitude better than state‐of‐the‐art. Such beams will have far‐reaching impact for applications such as light sources, but also open up new vistas on high energy and high field physics. This paper reviews the innovation of plasma photocathodes, and reports on the experimental progress, challenges, and future prospects of the approach. Details of the proof‐of‐concept demonstration of a plasma photocathode in 90° geometry at SLAC FACET within the E‐210: Trojan Horse program are described. Using this experience, alongside theoretical and simulation‐supported advances, an outlook is given on future realizations of plasma photocathodes such as the upcoming E‐310: Trojan Horse‐II program at FACET‐II with prospects toward excellent witness beam parameter quality, tunability, and stability. Future installations of plasma photocathodes also at compact, hybrid plasma wakefield accelerators, will then boost capacities and open up novel capabilities for experiments at the forefront of interaction of high brightness electron and photon beams.