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人类对天文物理现象的不断探索和深入了解,使我们能获得同时具有高的空间、时间、光谱分辨率的天文物理观测结果。但是,硬X射线和γ射线不能用常规的光学元件折射或反射,因此,光子能量在10keV以上的X射线源必须使用投影技术成像。这类技术依赖光学元件对X射线或γ射线的吸收,用编码装置可以间接获得高能区域的像。这样的成像器包括两部分:(1)编码器,(2)像面探测系统。
The constant exploration and in-depth understanding of the astronomical and physical phenomena of mankind enable us to obtain astronomical and physical observation results with high space, time and spectral resolution. However, hard X-rays and gamma rays can not be refracted or reflected by conventional optics, so X-ray sources with photon energies above 10 keV must be imaged using projection techniques. This type of technology relies on the absorption of X-rays or gamma rays by optical components, with which the image of the high-energy region can be obtained indirectly. Such an imager comprises two parts: (1) an encoder, (2) an image plane detection system.