论文部分内容阅读
本文介绍利用理论公式设计出一种图表,并提出其公式的基本原理。使用这种图表可以直接测定背射劳埃斑点的布拉格角-θ_背角及透射劳埃斑点的θ_透角。
This article describes the use of theoretical formulas to design a chart, and put forward the basic principles of its formula. Use this chart to directly measure the θ_ angle of the Bragg-θ_back and the transillumination spots on the back-Lairé spot.