一、引言用于辐射光学的高性能石墨具有高衍射和高能量分辨率等优良性质。然而,制备性能接近单晶石墨,制备厚而大(尺寸)的石墨是极端困难的。本文报导制备高性能裂解石墨块的新合成方法,所用原料为聚合物薄片。它特别适合于作X射线和中子光学的光学元件。 I. INTRODUCTION High-performance graphite for radiation optics has excellent properties such as high diffraction and high energy resolution. However, the preparation performance is close to that of single-crystal graphite, and it is extremely difficult to produce thick, large-sized graphite. In this paper, a new synthesis method for preparing high-performance cracked graphite blocks is reported. The raw materials used are polymer sheets. It is particularly suitable as an optical element for X-ray and neutron optics.