In the Shock Ignition scheme, the spike pulse intensity is well above the threshold of parametric instabilities, which produce a considerable amount of hot electrons that could be beneficial or detrimental to the ignition. To study their impact, an experiment has been carried out on the LMJ-PETAL facility with a goal to generate a strong shock inside a plastic layer under plasma conditions relevant to full-scale shock ignition targets. To evaluate the effect of hot electrons on the shock characteristics, laser temporal smoothing was either switched on or off, which in turns varies the quantity of hot electrons being generated. In this paper, we present preliminary results obtained during the experiment dedicated to the hot electron characterization. We present also calculations for the second part of the experiment, scheduled in 2020 and focused on the shock characterization.

在电击点火方案中，尖峰脉冲强度远高于参数不稳定性的阈值，这会产生大量的热电子，这些电子可能对点火有利或有害。为了研究它们的影响，已经在LMJ-PETAL设施上进行了一项实验，目的是在等离子条件下与全尺寸冲击点火目标相关的塑料层内部产生强烈冲击。为了评估热电子对冲击特性的影响，可以打开或关闭激光时间平滑功能，从而改变产生的热电子数量。在本文中，我们介绍了在热电子表征实验中获得的初步结果。我们还提供了实验第二部分的计算，