Measurement of secondary neutron emission double-differential cross sections for 9Be induced by 21.65 ± 0.07 MeV neutrons

被引：3

作者：

Lan, Changlin ^{[1
]}

Ruan, Xichao ^{[2
]}

Chen, Guochang ^{[2
]}

Nie, Yangbo ^{[2
]}

Huang, Hanxiong ^{[2
]}

Bao, Jie ^{[2
]}

Zhou, Zuying ^{[2
]}

Tang, Hongqing ^{[2
]}

Kong, Xiangzhong ^{[1
]}

Peng, Meng ^{[1
]}

机构：

[1] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China

[2] China Inst Atom Energy, Dept Nucl Phys, Beijing 102413, Peoples R China

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2016年 / 375卷

基金：

中国国家自然科学基金;

关键词：

Secondary neutron; Double-differential cross sections; Fast neutron TOF spectrometer; Monte-Carlo method; THEORETICAL-ANALYSIS; SCATTERING; BERYLLIUM;

D O I：

10.1016/j.nimb.2016.03.027

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The neutron emission double-differential cross sections (DDX) of Be-9 was measured at an incident neutron energy of 21.65 MeV, using the multi-detector fast neutron time-of-flight (TOF) spectrometer on HI 13 Tandem Accelerator at the China Institute of Atomic Energy (CIAE). The data were deduced by comparing the measured TOF spectra with the calculated ones using a realistic Monte-Carlo simulation. The DDX were normalized to n-p scattering cross sections which are a neutron scattering standard. The results of the elastic scattering angular distributions (DX) and the secondary neutron emission DDX at 25 different angles from 15 deg to 145 deg were presented. Meanwhile, a theoretical model based on the unified Hauser-Feshbach and exciton model for light nuclei was used to describe the double differential cross sections of n+Be-9, and the theoretical calculation results were compared with the measured cross sections. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：8 / 12

页数：5

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