“天光一号”高功率激光直接驱动惯性约束聚变(ICF)有以较少驱动能量获得聚变能的潜力,高功率KrF准分子激光系统放大后的能量输出是实验中必不可少的参数,注入靶室前能量的准确测量是开展靶物理实验的重要保证。“天光一号”能量实时监测系统由于长时间在强激光下辐照,导致能量探测的灵敏度下降。图1为整套能量实时监测系统示意图。根据能量实时监测系统及实际 “Tianguang No. 1 ” high power laser direct inertial confinement fusion (ICF) has the potential to obtain fusion energy with less driving energy, and the amplified energy output of a high power KrF excimer laser system is an indispensable parameter in the experiment The accurate measurement of the energy before injection into the target chamber is an important guarantee for the target physics experiments. “Sky One” energy real-time monitoring system due to prolonged exposure to intense laser, resulting in reduced sensitivity of energy detection. Figure 1 shows a complete set of energy real-time monitoring system. According to real-time energy monitoring system and reality