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Study on secondary electron suppression in compact D-D neutron generator

文献类型：期刊论文

作者Lu, Xiao-Long1,3; Wei, Zheng1,3; Zhang, Zi-Min2; Huang, Zhi-Wu3; Bai, Xiao-Hou3; Liu, Chang-Qi3; Yao, Ze-En1,3; Zhang, Yu3; Wang, Jun-Run1,3; Ma, Zhan-Wen3
刊名NUCLEAR SCIENCE AND TECHNIQUES
出版日期2019-05-01
卷号30期号:5页码:7
ISSN号1001-8042
关键词D-D neutron generator Secondary electron suppression Secondary electron emission coefficient
DOI10.1007/s41365-019-0596-0
通讯作者Zhang, Yu(zhyu@lzu.edu.cn) ; Yao, Ze-En(zeyao@lzu.edu.cn)
英文摘要A compact D-D neutron generator, with a peak neutron yield of D-D reactions up to 2.48x10(8)n/s is being developed at Lanzhou University in China for application in real-time neutron activation analysis. During tests, the problem of back acceleration of secondary electrons liberated from the neutron production target by deuterium ions bombardment was encountered. In this study, an electric field method and a magnetic field method for suppressing secondary electrons are designed and experimentally investigated. The experimental results show that the electric field method is superior to the magnetic field method. Effective suppression of the secondary electrons can be achieved via electrostatic suppression when the bias voltage between the target and the extraction-accelerating electrode is >204V. Furthermore, the secondary electron emission coefficient for the mixed deuterium ion (D-1(+), D-2(+), and D-3(+)) impacting on molybdenum is estimated. In the deuterium energy range of 80-120keV, the estimated secondary electron emission coefficients are approximately 5-5.5 for the mixed deuterium ion glancing incidence of 45 degrees and approximately 3.5-3.9 for the mixed deuterium ion normal incidence.
WOS关键词ACTIVATION-ANALYSIS ; EMISSION ; DEUTERIDE
资助项目National Key Scientific Instrument and Equipment Development Project of China[2013YQ40861] ; National Natural Science Foundations of China[11875155] ; National Natural Science Foundations of China[11705071] ; Fundamental Research Funds for the Central Universities of China[lzujbky-2019-kb09]
WOS研究方向Nuclear Science & Technology ; Physics
语种英语
出版者SPRINGER SINGAPORE PTE LTD
WOS记录号WOS:000466165800001
资助机构National Key Scientific Instrument and Equipment Development Project of China ; National Natural Science Foundations of China ; Fundamental Research Funds for the Central Universities of China
源URL[http://119.78.100.186/handle/113462/133415]  
专题中国科学院近代物理研究所
通讯作者Yao, Ze-En; Zhang, Yu
作者单位1.Lanzhou Univ, Engn Res Ctr Neutron Applicat Technol, Minist Educ, Lanzhou 730000, Gansu, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
3.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Xiao-Long,Wei, Zheng,Zhang, Zi-Min,et al. Study on secondary electron suppression in compact D-D neutron generator[J]. NUCLEAR SCIENCE AND TECHNIQUES,2019,30(5):7.
APA Lu, Xiao-Long.,Wei, Zheng.,Zhang, Zi-Min.,Huang, Zhi-Wu.,Bai, Xiao-Hou.,...&Ma, Zhan-Wen.(2019).Study on secondary electron suppression in compact D-D neutron generator.NUCLEAR SCIENCE AND TECHNIQUES,30(5),7.
MLA Lu, Xiao-Long,et al."Study on secondary electron suppression in compact D-D neutron generator".NUCLEAR SCIENCE AND TECHNIQUES 30.5(2019):7.

入库方式： OAI收割

来源：近代物理研究所

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