Stable electron beams with low absolute energy spread from A laser wakefield accelerator with plasma density ramp controlled injection
Stable electron beams with low absolute energy spread from A laser wakefield accelerator with plasma density ramp controlled injection
复制标题
来自激光尾场加速器的稳定电子束，具有低绝对能量扩散，具有等离子体密度斜坡控制注入
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
J. Cary
中科院分区：
文献类型：
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作者：
C. Geddes;E. Cormier;E. Esarey;W. Leemans;K. Nakamura;D. Panasenko;G. Plateau;C. Schroeder;C. Tóth;J. Cary
激光尾场加速器可产生高达数百 GeV/m 的加速梯度，并且最近利用等离子体自俘获电子在高达 1 GeV 的能量下展示了 1-10 MeV 的能量扩散。受控注入和分级可以通过规避能量、稳定性和能量扩散/发射之间的权衡来进一步提高光束质量。我们提出的实验证明，通过使用等离子体密度分布来控制自注入，并支持模拟，可以产生接近 1 MeV、具有百 keV 级能量扩散和中心能量稳定性的稳定电子束。模拟表明，此类光束可以后加速到高能量，有可能将激光加速器中的动量扩散减少 100 倍或更多。
Laser wakefield accelerators produce accelerating gradients up to hundreds of GeV/m, and recently demonstrated 1-10 MeV energy spread at energies up to 1 GeV using electrons self-trapped from the plasma. Controlled injection and staging may further improve beam quality by circumventing tradeoffs between energy, stability, and energy spread/emittance. We present experiments demonstrating production of a stable electron beam near 1 MeV with hundred-keV level energy spread and central energy stability by using the plasma density profile to control self- injection, and supporting simulations. Simulations indicate that such beams can be post accelerated to high energies, potentially reducing momentum spread in laser accelerators by 100-fold or more.
影响因子：
64.8
作者：
Faure, J;Glinec, Y;Malka, V
通讯作者：
Malka, V