FEBIAD离子源的新进展  

The new progress of FEBIAD ion source

作　　者：范红梅[1] 王同庆[1] 郭斌[1] 张立[1] 赵进华[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000

出　　处：《核技术》2001年第10期812-815,共4页Nuclear Techniques

基　　金：国家重点基础研究发展规划 (合同号G2 0 0 0 0 7740 0 );国家自然科学基金 (19975 0 5 8)

摘　　要：描述了用于兰州在线同位素分离的FEBIAD靶 -离子源的改进、最新进展和结果。经过改进后 ,在线同位素分离器对Xe的分辨本领由原来的 360提高到 60 0 ,对199Hg的在线测量效率提高了一个数量级 ,并测出了Hg、At、Rn等元素的一系列放射性同位素产物及生成截面为 5×10 - 34 m2 的2 0 8Hg衰变的能量最高的一条γ线。The modification, new progress and experimental results of the FEBIAD ion source used for isotope separation on-line in Lanzhou were described. After modification, the resolving power of ISOL is increased from 360 to 600 for Xe and efficiency for 199 Hg is higher by an order of magnitude than before. The modified FEBIAD target-ion source has been successfully applied to separate isotopes of Hg, At and Rn. The γ-ray with highest energy of 1.234MeV from the decay of 208 Hg which has a production cross section of 5×10 -34 m 2 can be measured.

关 键 词：分辨本领 靶-离子源 在线同位素分离器 TEBIAD 电源系统 改进 

分 类 号：TL922[核科学技术—核燃料循环与材料]