用柱面镜和球体面镜组成的消像散系统，配上平焦场光栅谱仪，制作了一台理论分辨能力２５μｍ，放大５倍的一维消像散谱仪，用它对类Ｎｅ锗软Ｘ光激光的增益区进行了测量，得到了与理论相符的结果。 An astigmatism system consisting of a cylindrical lens and a spherical mirror is used in conjunction with a flat-field grating spectrometer to fabricate a one-dimensional astigmatic scattered spectrometer with a theoretical resolution of 25μm and a magnification of 5 times. The gain region of Germanium soft X-ray laser was measured, and the theoretical result was obtained.