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作者机构:State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science CenterDongguan 523803China University of Chinese Academy of SciencesBeijing 100049China Institute of Nuclear Physics and ChemistryChina Academy of Engineering PhysicsMianyang 621900China State Key Laboratory of Nuclear Physics and TechnologySchool of PhysicsPeking UniversityBeijing 100871China Key Laboratory of Nuclear DataChina Institute of Atomic EnergyBeijing 102413China Department of Modern PhysicsUniversity of Science and Technology of ChinaHefei 230026China College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Northwest Institute of Nuclear TechnologyXi'an 710024China Institute of Modern PhysicsChinese Academy of Sciences(CAS)Lanzhou 730000China
出 版 物:《Chinese Physics C》 (中国物理C(英文版))
年 卷 期:2021年第45卷第6期
页 面:1-14页
核心收录:
学科分类:08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程]
基 金:Supported by the National Key Research and Development Plan(2016YFA0401600) the National Natural Science Foundation of China(11675155,11790321)
主 题:white neutron beam experimental spectrometers nuclear data measurements nuclides data analysis
摘 要:The Back-n white neutron source(known as Back-n)is based on back-streaming neutrons from the spallation target at the China Spallation Neutron Source(CSNS).With its excellent beam properties,e.g.,a neutron flux of approximately 1.8×107 n/cm2/s at 55 m from the spallation target,energy range spanning from 0.5 eV to 200 MeV,and time-of-flight resolution of a few per thousand,along with the equipped physical spectrometers,Back-n is considered to be among the best facilities in the world for carrying out nuclear data *** its completion and commencement of operation in May 2018,five types of cross-section measurements concerning neutron capture cross-sections,fission cross-sections,total cross-sections,light charged particle emissions,in-beam gamma spectra,and more than forty nuclides have been *** article presents an overview of the experimental setup and result analysis on the neutron-induced cross-section measurements and gamma spectroscopy at Back-n in the initial years.