Retardation effects in space charge calculations of high current electron beams
Retardation effects in space charge calculations of high current electron beams
复制标题
高电流电子束空间电荷计算中的延迟效应
DOI：
10.1103/physrevstab.12.101301
复制
发表时间：
2009
影响因子：
--
通讯作者：
D. Habs
中科院分区：
文献类型：
--
作者：
Stefan Becker;P. B. Hilz;F. Grüner;D. Habs
激光等离子体加速器有望提供具有高空间电荷场的电子聚束。最近的几个出版物已经解决了空间电荷效应的影响后，这样的聚束提取到真空中。由于延迟效应的近似伪影得到解决，这通常被忽略或近似。我们讨论了一个更合适的计算的情况下，激光韦克菲尔德加速与可忽略的延迟伪影，由于在平均静止帧中进行的计算。本文的计算方法也是为了验证其他模拟方法的有效性。
Laser-plasma accelerators are expected to deliver electron bunches with high space charge fields. Several recent publications have addressed the impact of space charge effects on such bunches after the extraction into vacuum. Artifacts due to the approximation of retardation effects are addressed, which are typically either neglected or approximated. We discuss a much more appropriate calculation for the case of laser wakefield acceleration with negligible retardation artifacts due to the calculation performed in the mean rest frame. This presented calculation approach also aims at a validation of other simulation approaches.