Performance improvement of a discrete dynode electron multiplication system through the optimization of secondary electron emitter and the adoption of double-grid dynode structure
文献类型:期刊论文
作者 | Liu, Biye3,4; Li, Jie4; Chen, Song2; Yang, Jishi4; Hu, Wenbo4; Tian, Jinshou1; Wu, Shengli4 |
刊名 | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
出版日期 | 2024-05 |
卷号 | 1062 |
ISSN号 | 01689002 |
关键词 | Discrete dynode electron multiplication system Secondary electron emission MgO/(MgO–Au)/Au multilayer film MgO layer thickness Double-grid structure |
DOI | 10.1016/j.nima.2024.169162 |
产权排序 | 4 |
英文摘要 | The discrete dynode electron multiplication system (DD-EMS) is the core part of commonly used photomultiplier tubes and electron multipliers, and it has a great influence on the signal amplification capability of these devices. In this work, the sputtering time of Mg target during the deposition of the surface MgO layer of the MgO/(MgO–Au)/Au multilayer film as the secondary electron emitter was optimized, and the strategy of double-grid structures applied at the 7th and 8th dynodes was proposed with the intention of improving the gain and stability of nine-stage DD-EMS under electron bombardment to satisfy the requirements of detecting the single photon or single charged particle. The investigation results show that the DD-EMS fabricated by using the MgO/(MgO–Au)/Au film with a Mg target's sputtering time of 3600 s has the highest maximal gain of 1.22 × 106 and the lowest gain attenuation rate of 15.7%/mC under electron bombardment. In addition, the DD-EMS with the double-grid structure has a higher maximal gain of 1.62 × 106 and a lower gain attenuation rate of 11.6%/mC under continuous electron bombardment, which are 32.8% increased and 17.7% reduced respectively in comparison with that of the single-grid structure. © 2024 Elsevier B.V. |
语种 | 英语 |
出版者 | Elsevier B.V. |
源URL | [http://ir.opt.ac.cn/handle/181661/97244] |
专题 | 条纹相机工程中心 |
通讯作者 | Li, Jie; Wu, Shengli |
作者单位 | 1.Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences, Xi'an; 710119, China 2.China Telecom Corporation Limited Beijing Research Institute, Beijing; 102209, China; 3.Beijing Orient Institute of Measurement and Test, Beijing; 100086, China; 4.Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; |
推荐引用方式 GB/T 7714 | Liu, Biye,Li, Jie,Chen, Song,et al. Performance improvement of a discrete dynode electron multiplication system through the optimization of secondary electron emitter and the adoption of double-grid dynode structure[J]. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment,2024,1062. |
APA | Liu, Biye.,Li, Jie.,Chen, Song.,Yang, Jishi.,Hu, Wenbo.,...&Wu, Shengli.(2024).Performance improvement of a discrete dynode electron multiplication system through the optimization of secondary electron emitter and the adoption of double-grid dynode structure.Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment,1062. |
MLA | Liu, Biye,et al."Performance improvement of a discrete dynode electron multiplication system through the optimization of secondary electron emitter and the adoption of double-grid dynode structure".Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1062(2024). |
入库方式: OAI收割
来源:西安光学精密机械研究所
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