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

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 

机构地区：[1]School of Physics and State Key Laboratory of Nuclear Physics and Technology,Peking University

出　　处：《Plasma Science and Technology》2012年第6期539-542,共4页等离子体科学和技术（英文版）

基　　金：supported by the National Basic Research Program of China (No. 2007CB815002);National Natural Science Foundation of China(Nos. 11035001, 10775003, 10827505, 10821140159)

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

关 键 词：SHE NEUTRON CROSS-TALK two-neutron correlation 

分 类 号：TL816.3[核科学技术—核技术及应用]