【摘 要】
：
~(14)C半衰期5 730年,是自然界标准时钟,又可作为示踪原子。因此,在考古、生物医学、工程建筑等人文科学、自然科学研究和国民经济建设中有着广泛的应用。~(14)C是宇宙射线
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~(14)C半衰期5 730年,是自然界标准时钟,又可作为示踪原子。因此,在考古、生物医学、工程建筑等人文科学、自然科学研究和国民经济建设中有着广泛的应用。~(14)C是宇宙射线在高层大气层中产生的。~(14)C的核结构,尤其是晕结构与其产生率密切相关,~(14)C结构的研究有较重要的意义。
~ (14) C half-life of 5 730 years, is the standard clock in nature, but also as a tracer atom. Therefore, it has a wide range of applications in the humanities, archeology, biomedicine, engineering and construction, natural sciences and national economy. ~ (14) C is the cosmic ray generated in the upper atmosphere. The nuclear structure of ~ (14) C, especially the halo structure is closely related to its production rate. The study of ~ (14) C structure is of great significance.
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