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氪化(Kryptonation)是指用扩散、离子轰击等方法把氪气(一般是用放射性气体~(35)K_γ及其同位素)嵌入固体样品,并制得具有相当稳定性的固体标记样品的过程。在60年代中期由美国首先将此技术应用在工业方面。70年代以来国外陆续报导了应用该项技术来测出一般方法所不能测出的重要运动部件的最高工作温度及其分布;用于探伤、微量化学分析、结构分析等。本文扼要地介绍了该技术的原理和在材料研究方面的应用。
Kryptonation refers to the process of inserting krypton gas (usually radioactive 35 K_γ and its isotopes) into a solid sample by diffusion, ion bombardment and the like, and obtaining a solid labeled sample of considerable stability. In the mid-1960s, the United States first applied this technology to industry. Since the 1970s, one after another reported the application of the technology to measure the general method can not measure the maximum moving parts of the maximum working temperature and its distribution; for testing, trace chemical analysis, structural analysis. This article briefly introduces the principle of the technology and its application in material research.