论文标题
演示了kilohertz激光 - 血浆加速器的稳定长期操作
Demonstration of stable long-term operation of a kilohertz laser-plasma accelerator
论文作者
论文摘要
我们报告了Kilohertz激光 - 血浆加速器的稳定和连续运行。通过注入并捕获向下等离子体密度坡道，产生了具有2.6 PC电荷和2.5 MeV峰值能量的电子束。这种密度转变是在新设计的不对称冲击气喷嘴中产生的。在一周的时间内还评估了电子源的可重复性，并发现具有相似的梁电荷和能量值令人满意。这些结果表明，当使用强大的密度梯度注入方案时，长期规模上的重现性和稳定性会大大增强。
We report on the stable and continuous operation of a kilohertz laser-plasma accelerator. Electron bunches with 2.6 pC charge and 2.5 MeV peak energy were generated via injection and trapping in a downward plasma density ramp. This density transition was produced in a newly designed asymmetrically shocked gas nozzle. The reproducibility of the electron source was also assessed over a period of a week and found to be satisfactory with similar values of the beam charge and energy. These results show that the reproducibility and stability of the laser-plasma accelerator are greatly enhanced on the long-term scale when using a robust scheme for density gradient injection.
