diffraction ring

The influence of random position error of zones, width error of zones, interdiffusion and roughness on the efficiency and resolution of X-ray zone plates ( ZP) is analyzed by adding the analytic expression of the diffraction field of every ring.

利用叠加所有圆环的解析近似衍射场的方法来计算和分析随机环带位置误差、宽度误差、扩散和粗糙度对X射线波带片的效率和分辨率的影响。

ED analysis also showed that nanoparticles were highly-crystallized multi-crystals, with continuous and clear diffraction ring at surface such as ( 0004), ( 0110) and ( 0112) in conformance with XRD analysis results.

基本无杂质，较纯净；ED分析还表明纳米颗粒为多晶，晶化程度好，（0004）、（0110）、（0112）等晶面的衍射环连续、清晰，与XRD的分析结果一致。

Numerical study on modulation diffraction ring in linear medium

线性介质中衍射调制环的数值研究