Experimental Study of Two-Alpha Emission from High-Lying Excited States of ^(17,18)Ne

作     者：徐新星 林承键 贾会明 杨峰 贾飞 吴振东 张世涛 刘祖华 张焕乔 徐瑚珊 孙志宇 王建松 胡正国 王猛 陈若富 张雪荧 李琛 雷祥国 徐治国 肖国青 

作者机构：China Institute of Atomic Energy Institute of Modern PhysicsChinese Academy of Sciences 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2012年第14卷第5期

页      面：371-374页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 

基　　金：supported by National Natural Science Foundation of China (Nos.10675169,10735100,10727505,11005156) Major State Basic Research Developing Program of China (No.2007CB815003) 

主　　题：two-alpha emission Coulomb excitation complete kinematics measurements,sequential emission 

摘      要：The experiments of two-alpha emission from 17,18^Ne excited levels were performed at the HIRFL-RIBLL facility of the Institute of Modern Physics, Lanzhou. The beams of 17^Ne at the energy of 49.9 MeV/u and lSNe at 51.8 MeV/u bombarded a 197Au target to populate excited states of 17,18^Ne via Coulomb excitation. Complete kinematics measurements were achieved by the detectors of a silicon strip and CsI＋PIN array. The experimental results combined with simple MC simulations show the characteristic of sequential two-alpha emission via 140 excited states for lSNe. The results of two-alpha emission from 17^Ne are preliminary and need further analyses.