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慢正电子束技术是近十几年来发展起来的探测材料近表面微结构的新手段 .文章介绍了其在薄膜、界面和近表面测量的基本方法和部分应用结果
Slow positron beam technique is a new method to detect the near-surface microstructure of materials developed in recent ten years.The article introduces its basic methods and some application results