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低能电子衍射在表面结构分析中起着重要作用,随着分析技术的提高,使用的电子束波长越来越长,对电子束的要求也越来越高。主要是:1.低能人射电子束必须有一
Low-energy electron diffraction plays an important role in the analysis of surface structure. With the development of analytical techniques, the wavelength of electron beam used is longer and longer, and the requirements for electron beam are also getting higher and higher. Mainly: 1. Low-energy human beam must have one