中文摘要：

对衍射增强计算机断层技术进行了分析研究，提出了一种新方法,应用该方法只需在摇摆曲线一点处对物体进行360°范围内旋转投影成像，即可获得物体的折射率梯度分布以及吸收系数与散射系数和分布,该方法较以前的方法，大大简化了实验步骤。

英文摘要：

The technique of diffraction enhanced imaging computed tomography is studied in this paper and a new algorithm is given. The absorption, scattering and refractive index gradient can be obtained using the new algorithm with projection data of an object in the rotation range of 0°-360° and only needs to set the analyzer at one point of the rocking curve. The experimental process of the new algorithm is much simpler than the conventional.