Measurement of Neutron Flow with the External Target Experimental Device on CSR

FU Fen; XIAO Zhi-Gang; JIN Gen-Ming; FENG Zhao-Qing

Chinese Physics C> 2006, Vol. 30> Issue(11) : 1083-1087

Measurement of Neutron Flow with the External Target Experimental Device on CSR

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

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With the construction of the neutron detection wall at the external target position on Heavy Ion Research Facility in Lanzhou-Cooling Storage Ring (HIRFL-CSR), it will be possible to detect high energy neutron. A BUU model is applied to simulate the flow in both symmetric (Ni+Ni, Pb+Pb) and asymmetric(Pb+Ni) systems. It is shown that at above several hundreds MeV/u, the flow signals are very obvious and depend clearly on the centrality of the collisions. Based on the products in the forward angle less than 20°, the simulation also reveals that the determination of the reaction plane and the selection of the impact parameter, both of which are essential in the flow measurement, are well implemented. The double event and its influence on the determination of the neutron flow are also simulated.

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FU Fen, XIAO Zhi-Gang, JIN Gen-Ming and FENG Zhao-Qing. Measurement of Neutron Flow with the External Target Experimental Device on CSR[J]. Chinese Physics C, 2006, 30(11): 1083-1087.

FU Fen, XIAO Zhi-Gang, JIN Gen-Ming and FENG Zhao-Qing. Measurement of Neutron Flow with the External Target Experimental Device on CSR[J]. Chinese Physics C, 2006, 30(11): 1083-1087. shu

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Received: 2006-02-24
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Measurement of Neutron Flow with the External Target Experimental Device on CSR

Corresponding author: FU Fen,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2006-02-24

Accepted Date: 1900-01-01

Available Online: 2006-11-05

Abstract: With the construction of the neutron detection wall at the external target position on Heavy Ion Research Facility in Lanzhou-Cooling Storage Ring (HIRFL-CSR), it will be possible to detect high energy neutron. A BUU model is applied to simulate the flow in both symmetric (Ni+Ni, Pb+Pb) and asymmetric(Pb+Ni) systems. It is shown that at above several hundreds MeV/u, the flow signals are very obvious and depend clearly on the centrality of the collisions. Based on the products in the forward angle less than 20°, the simulation also reveals that the determination of the reaction plane and the selection of the impact parameter, both of which are essential in the flow measurement, are well implemented. The double event and its influence on the determination of the neutron flow are also simulated.

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Measurement of Neutron Flow with the External Target Experimental Device on CSR

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