The Experimental Study of Two-Neutron Correlation in 8He+
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XIAO Jun (肖军),
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YE Yanlin (叶沿林),
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You Haibo(游海波),
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YANG Zaihong (杨再宏),
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CAO Zhongxin(曹中鑫),
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JIANG Dongxing(江栋兴),
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ZHENG Tao(郑涛),
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HUA hui(华辉),
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Li Zhihuan(李智焕),
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GE Yucheng(葛俞成),
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et al
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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 6He+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 8He breakup reaction was investigated.
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