应用三维MC程序和PIC程序，对神光装置辐照下腔体内系统电磁脉冲（SGEMP）模型进行了耦合模拟。在半高宽为2.9 ns、平均能量为10.3 keV的轫致谱X射线点源辐照下，圆柱腔内电场最大值高达2 MV/m，以轴向电场为主；磁场最大值约为0.8×10⁻³ T，以角向磁场为主，电磁场最大值都集中在发射面附近，以脉冲直流场为主，交流辐射场幅度较小，约在kV/m量级。考察了注量对SGEMP效应的影响，注量越高，电场沿轴向变化越快，交流辐射场占比越大。

利用高能量纳秒激光轰击Al靶材产生的X射线作为信号源，对光折变X射线半导体响应芯片的空间性能进行实验研究。结果表明，低温生长AlGaAs芯片具备在X射线入射能量120∶1的动态范围内进行高空间分辨的大画幅成像能力，最优空间分辨率≥35 lp/mm @MTF=0.1，成像画幅可达6.7 mm×6.7 mm。该研究对于光折变X射线超快成像系统的研制具有参考意义。

Intensive electromagnetic pulses (EMPs) can be generated from interaction of the ultra-intense lasers and solid targets in inertial confinement fusion (ICF), which will detrimentally affect the data acquisition from some electric components. A diagnostic system for EMP measurement inside and outside the ShenGuang-III facility is designed and fabricated in this study. The experimental results indicate that the peak magnitude of EMP reaches up to 3210.7 kV/m and 6.02 T. The received signals depend most on the antenna and target types. The half-hohlraum generates a more intensive EMP radiation than that from the other targets, and the large planar and medium discone capture much stronger signals than the other antennas. In addition, the mechanisms of EMP generation from different targets are discussed. The resulting conclusion are expected to provide the experimental basis for further EMP shielding design.