在神光II高功率激光装置上，实验研究了激光斜辐照形成的激光等离子体辐射X射线光子的特性及真空喷射热等离子体流的方向采用针孔X射线相机侧量了钕玻璃激光(基频1.053 μm)辐照铝靶形成的激光铝等离子体辐射的X射线光子的空间分布, 并针对正人射和人射激光斜辐照情况下测得的X射线光子量及特性进行了分析和比较。结果发现:人射激光斜辐照固体平面靶产生的向真空喷射热等离子体流的方向是垂直靶面(即法线方向)；正人射和斜入射激光叠加驱动靶时，一定程度上能改善激光辐照的均匀性，但等离子体源辐射的X射线光子数并未发现显著地增加;当激光斜辐照与靶相互作用时激光能量被等离子体吸收下降。

Characteristics of X-ray and spout direction of heat plasma flow were studied on Shenguang-II laser facility. Using of pinhole X-ray camera, X-ray photons from the plasma of aluminum(Al) irradiated by 1.053 μm laser, was measured and analysed. It is observed that the spatial distribution of X-ray photons in Al plasma for tilted irradiation is symmetic at the center of the target. The spout direction of heat plasma flow is inferred by the distribution contour of X-ray photons. The experimental results show that the spout direction of heat plasma flow is normal to target plane and the output intensity of X-ray photons does not increase significantly for tilted laser incidence. Uniformity of laser energy depositions improved by superposing tilted incident and laser perpendicularly incident laser. At the same time, it is found that the conversion efficiency from the tilted incident laser energy to X-ray photons of laser-produced plasma is decreased