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求出了平整单晶试样反射式电子衍射斑点 y 轴向(垂直入射电子束及试样照射面与底片的交线)长度△R_y 的表达式,并据此对衍射斑的形状、线度、实验中照射角α的选择等进行了讨论。
The expression of the length △ R_y of the reflection electron diffraction spot y-axis (the perpendicularly incident electron beam and the intersection of the irradiation surface of the sample and the negative film) of the flat single crystal sample is obtained, and the shape and the linearity of the diffraction spot , The experimental choice of irradiation angle α and so on are discussed.