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介绍场离子显微镜的基本原理及仪器主要结构和特点。描述了场离子显微镜样品的制备,并得到曲率半径为500(?),表面光洁的钨针尖。取得具有原子级分辨的场离子像,并对钨场离子像反映的晶体表面结构进行了分析。
Introduction to the basic principles of field ion microscope and the main structure and characteristics of the instrument. The preparation of the field ion microscope was described and a tungsten tip with a smooth surface was obtained with a radius of curvature of 500 (?). The field ion images with atomic resolution were obtained, and the surface structure of the crystals reflected by the tungsten field ion image was analyzed.