14MeV中子反应和远离核研究  

Reactions Induced by 14 MeV Neutrons and Study on Nuclei far from Stability

作　　者：袁双贵[1] 徐岩冰[1] 杨维凡[1] 王贤义[1] 赵力民[1] 王平志[1] 李恒远[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000

出　　处：《科学技术与工程》2004年第7期635-636,共2页Science Technology and Engineering

基　　金：国家自然科学基金(10175079);国家重点基础研究发展规划(G2000077400)

摘　　要：指出了中子源的重要性,扼要地说明了加速器中子源的特点。简单地介绍了14 MeV中子引起的核反应,发现了14 MeV中子可以引起重核的奇异(n,2p)反应,并以此为基础,形成了合成和研究重丰中子新核素的一条物理思想和生成、分离鉴别技术路线;先后合成和研究了^(185)Hf、^(237)Th、^(175)Er和^(197)Os等四种重丰中子新核素。The significance of neutron sources is pointed out. The characteristic of accelerator neutron sources is essentialized. The nuclear reactions induced by 14 MeV neutrons are introduced simply. The exotic (n,2p) reaction induced heavy nuclei by 14 MeV neutrons was found. The physics idea and technical route for production, separation, and identification in the synthesis and study of new heavy neutron-rich nuclides are formed based on (n,2p) reaction. Four new heavy neutron-rich nuclides ^(185)Hf, ^(237)Th, ^(175)Er, and ^(197)Os are successively synthesized and studied.

关 键 词：14 MeV中子 (n 2p)反应 新核素 

分 类 号：O571.34[理学—粒子物理与原子核物理]