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arXiv 2005.06929physics.acc-phphysics.plasm-ph
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千赫laser等离子体加速器长期稳定运行的验证

Demonstration of stable long-term operation of a kilohertz laser-plasma accelerator

Lucas Rovige, Julius Huijts, Aline Vernier, Vidmantas Tomkus, Valdas Girdauskas, Gediminas Raciukaitis, Juozas Dudutis, Valdemar Stankevic, Paulius Gecys, Marie… 展开作者

Lucas Rovige, Julius Huijts, Aline Vernier, Vidmantas Tomkus, Valdas Girdauskas, Gediminas Raciukaitis, Juozas Dudutis, Valdemar Stankevic, Paulius Gecys, Marie Ouillé, Zhao Cheng, Rodrigo Lopez-Martens, Jérôme Faure

摘要:

我们报告的稳定和连续运行的千赫激光等离子体加速器。电子束与2.6 pC的电荷和2.5 MeV的峰值能量产生通过注入和捕获在一个向下的等离子体密度斜坡。这种密度转变是在一种新设计的非对称激波气体喷嘴中产生的。还在一周的时间内评估了电子源的再现性,发现在束电荷和能量的类似值下是令人满意的。这些结果表明,激光等离子体加速器的重复性和稳定性大大提高了长期规模时,使用一个强大的计划密度梯度注入。

英文摘要:

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.

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