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将针孔透射光栅谱仪和Ｘ射线ＣＣＤ相结合，探测到超短脉冲激光（＜６０ｆｓ）与多种固体平面靶相互作用而产生的、波长范围在１～１５ｎｍ之间的高重复频率Ｘ射线发射，随着入射激光能量的增加，各种靶不同的Ｘ射线带的发射呈线性增长，并发现在超短脉冲激光作用下，Ｌ带发射效率最高元素的原子序数比长脉冲打靶时要来得小。
The combination of pinhole transmission grating spectrometer and X-ray CCD detects the high repetition rate X-ray with wavelength range from 1 to 15nm which is generated by the interaction of ultrashort pulse laser (<60fs) with a variety of solid planar targets With the increase of incident laser energy, the emission of different X-ray bands of various targets increases linearly. It is found that under the action of ultra-short pulse laser, the atomic number of the element with the highest emission efficiency of L band is smaller than that of long pulse shooting .