中文摘要：

基于高定向热解石墨晶体（highly oriented pyrolitic graphite，HOPG）研制了一种新型反射式X射线谱仪．该谱仪具有高反射效率、较高能谱分辨率及相对较宽的能谱测量范围．根据计算，在相同的入射条件下，该谱仪的效率比一般X射线弯晶谱仪高3个量级；谱仪能谱分辨率理论值最高达350；理论探测范围是6．891keV至9．193keV．我们将该谱仪应用在高功率密度激光与固体靶相互作用的实验中，发现在普通弯晶谱仪无法采到信号的实验条件下，HOPG谱仪依然采集到清晰的Cu K谱线．分析发现在8．048keV（Cu的Ka光子能量）附近的能谱分辨能力最高达到40eV，分辨率大于200．

英文摘要：

A novel design of X-ray spectrometer is implemented, using a high efficiency HOPG （highly oriented pyrolitic graphite） Bragg crystal. The spectral resolution of it can reach above 350 with energy ranging from 6.891 to 9.193 keV, theoretically. And the efficiency are 3 order of magnitude higher than the ordinary X-ray crystal spectrometer. Application of this instrument is demonstrated in high intensity laser-foil interaction experiments. It is shown that HOPG spectrometer has much lower threshold of X-ray intensity than ordinary one. The spectral resolution for 8.048 keV （Cu Ka-line） can reach 40 eV, which gives the spectral resolution greater than 200.