High-Brightness High-Energy Electron Beams from a Laser Wakefield Accelerator via Energy Chirp Control
High-Brightness High-Energy Electron Beams from a Laser Wakefield Accelerator via Energy Chirp Control
复制标题
通过能量啁啾控制从激光尾场加速器产生高亮度高能电子束
DOI：
10.1103/physrevlett.117.124801
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发表时间：
2016
影响因子：
8.6
通讯作者：
Xu Z Z
中科院分区：
文献类型：
--
作者：
Wang W T;Li W T;Liu J S;Zhang Z J;Qi R;Yu C H;Liu J Q;Fang M;Qin Z Y;Wang C;Xu Y;Wu F X;Leng Y X;Li R X;Xu Z Z
通过设计双级气体射流之间的结构气体密度分布来操纵电子种子和能量啁啾反转以压缩能量扩散，我们在级联激光尾流场加速器中实验产生了高亮度高能电子束，峰值能量在200-600 MeV范围内，0.4%-1.2% rms能量扩散，10-80 pC电荷和散度。最大六维亮度估计为，这是非常接近典型的亮度光束从最先进的直线驱动器。这些高亮度高能光束可以实现紧凑的单能伽玛射线和强相干x射线辐射源。
By designing a structured gas density profile between the dual-stage gas jets to manipulate electron seeding and energy chirp reversal for compressing the energy spread, we have experimentally produced high-brightness high-energy electron beams from a cascaded laser wakefield accelerator with peak energies in the range of 200–600 MeV, 0.4%–1.2% rms energy spread, 10–80 pC charge, anddivergence. The maximum six-dimensional brightnessis estimated as, which is very close to the typical brightness ofbeams from state-of-the-art linac drivers. These high-brightness high-energybeams may lead to the realization of compact monoenergetic gamma-ray and intense coherent x-ray radiation sources.