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Experimental Study of Two-Neutron Correlation in ~8He~+

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【作者】 肖军； 叶沿林； 游海波； 杨再宏； 曹中鑫； 江栋兴； 郑涛； 华辉； 李智焕； 葛俞成； 李湘庆； 楼建玲； 李阔昂； 李奇特； 乔锐； 陈瑞九；

【Author】 XIAO Jun, YE Yanlin , YOU Haibo , YANG Zaihong , CAO Zhongxin , JIANG Dongxing , ZHENG Tao , HUA hui , LI Zhihuan , GE Yucheng , LI Xiangqing , LOU Jianling , LI Kuoang , LI Qite , QIAO Rui , CHEN Ruijiu School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

【机构】 School of Physics and State Key Laboratory of Nuclear Physics and Technology,Peking University；

【摘要】 A neutron detector array was used in a breakup reaction experiment at RIKEN with an 82.5 MeV/u 8He beam impinging on the CH2 and C targets. The array was calibrated using the cosmic ray, the γ ray from the 6 He+Pb reaction and the mono-energetic neutrons from the 7Li(p, n)7Be(g.s.+0.43 MeV) reaction. The position resolution, timing resolution and neutron detection efficiency were obtained accordingly. Cross-talk rejection conditions were developed based on analysis of the data taken from the 7Li(p, n) 7Be(g.s.+0.43 MeV) test experiment, and finally a preliminary two-neutron correlation function for the 8 He breakup reaction was investigated.

【Abstract】 A neutron detector array was used in a breakup reaction experiment at RIKEN with an 82.5 MeV/u 8He beam impinging on the CH2 and C targets. The array was calibrated using the cosmic ray, the γ ray from the 6 He+Pb reaction and the mono-energetic neutrons from the 7Li(p, n)7Be(g.s.+0.43 MeV) reaction. The position resolution, timing resolution and neutron detection efficiency were obtained accordingly. Cross-talk rejection conditions were developed based on analysis of the data taken from the 7Li(p, n) 7Be(g.s.+0.43 MeV) test experiment, and finally a preliminary two-neutron correlation function for the 8 He breakup reaction was investigated.

【关键词】 8He； neutron； cross-talk； two-neutron correlation；
【Key words】 8He； neutron； cross-talk； two-neutron correlation；
【基金】 supported by the National Basic Research Program of China (No. 2007CB815002);National Natural Science Foundation of China(Nos. 11035001, 10775003, 10827505, 10821140159)
  • 【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06期
  • 【分类号】TL816.3
  • 【被引频次】1
  • 【下载频次】16
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