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

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【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；

【Author】 XU Xinxing1, LIN Chengjian1, JIA Huiming1, YANG Feng1, JIA Fei1, WU Zhendong1, ZHANG Shitao1, LIU Zuhua1, ZHANG Huanqiao1,XU Hushan2,SUN Zhiyu2, WANG Jiansong2, HU Zhengguo2, WANG Meng2, CHEN Ruofu2,,ZHANG Xueying2,LI Chen2,LEI Xiangguo2,XU Zhiguo2,XIAO Guoqing2 1 China Institute of Atomic Energy, Beijing 102413, China 2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China

【机构】 China Institute of Atomic Energy； Institute of Modern Physics,Chinese Academy of Sciences；

【摘要】 The experiments of two-alpha emission from 17,18Ne excited levels were performed at the HIRFL-RIBLL facility of the Institute of Modern Physics, Lanzhou. The beams of 17Ne at the energy of 49.9 MeV/u and 18Ne at 51.8 MeV/u bombarded a 197Au target to populate excited states of 17,18Ne 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 14O excited states for 18Ne. The results of two-alpha emission from 17Ne are preliminary and need further analyses.

【Abstract】 The experiments of two-alpha emission from 17,18Ne excited levels were performed at the HIRFL-RIBLL facility of the Institute of Modern Physics, Lanzhou. The beams of 17Ne at the energy of 49.9 MeV/u and 18Ne at 51.8 MeV/u bombarded a 197Au target to populate excited states of 17,18Ne 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 14O excited states for 18Ne. The results of two-alpha emission from 17Ne are preliminary and need further analyses.

【关键词】 two-alpha emission； Coulomb excitation； complete kinematics measurements； sequential emission；
【Key words】 two-alpha emission； Coulomb excitation； complete kinematics measurements； sequential emission；
【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)
  • 【文献出处】 Plasma Science and Technology ,等离子体科学与技术(英文版) , 编辑部邮箱 ,2012年05期
  • 【分类号】O571.24
  • 【被引频次】1
  • 【下载频次】19
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