论文标题
激光脉冲电子束协同：激光韦克菲尔德加速器中较高电子能量增益的方法
Laser Pulse-Electron Beam Synergy: An Approach to Higher Electron Energy Gain in Laser Wakefield Accelerators
论文作者
论文摘要
根据激光脉冲和电子束的合作，建议提出一种新的在韦克菲尔德加速器中电子加速的方案。这种协同作用会导致泡沫状况中更强大的韦克菲尔德产生和更高的能量增益。整个气泡的强烈变形导致较低激光功率和较低血浆密度下的电子自我注射。为了预测电子束和激光脉冲参数的实际范围，提出了解释模型。研究了改变初始电子束位置对等离子体电子的自诱饵的影响。观察到，在48 TW激光驱动的Wakefield的减速阶段，通过注入280 PC电子束，产生高质量（25 FS），高电荷（340 PC），1 GEV电子束。
A new scheme for injection and acceleration of electrons in wakefield accelerators is suggested based on the co-action of a laser pulse and an electron beam. This synergy leads to stronger wakefield generation and higher energy gain in the bubble regime. The strong deformation of the whole bubble leads to electron self-injection at lower laser powers and lower plasma densities. To predict the practical ranges of electron beam and laser pulse parameters an interpretive model is proposed. The effects of altering the initial electron beam position on self-trapping of plasma electrons are studied. It is observed, a high quality (25 fs), high charge (340 pC ), 1 GeV electron bunch is produced by injection of a 280 pC electron beam in the decelerating phase of the 48 TW laser driven wakefield.
