| 同步扫描管时空分辨特性研究 |
| |
| 引用本文： | 田丽萍,沈令斌,陈琳,李立立,陈萍,田进寿.同步扫描管时空分辨特性研究[J].光子学报,2021,50(4):143-152. |
| |
| 作者姓名： | 田丽萍 沈令斌 陈琳 李立立 陈萍 田进寿 |
| |
| 作者单位： | 金陵科技学院 网络与通信工程学院,南京 211169;中国科学院西安光学精密机械研究所 瞬态光学与光子技术国家重点实验室,超快诊断技术重点实验室,西安 710119 |
| |
| 基金项目： | Ph.D.Project Supported by the Jinling Institute of Technology(Nos.jit-b-202012,jit-b-201814);the Natural Science Foundation of Jiangsu Province,China(No.BK20190112);the National Natural Science Fund(No.12005083);the Scientific Instrument Developing Project of the Chinese Academy of Sciences(No.GJJSTD20190004)。 |
| |
| 摘 要： | 设计了一种具有高空间分辨率、高时间分辨率和大工作面积的同步扫描条纹管.建立三维模型,系统地分析了物理时间分辨率与加速电压、空间分辨率与偏转系统-光电阴极的距离、动态空间分辨率和时间分辨率与扫描速度的关系.给出最优化结构参数和电气参数:dDC=100 mm,Ug=700 V,Tscreen=0.5 ns.数值模拟结果表明,在光电阴极有效工作面积18 mm×2 mm范围内,静态和动态空间分辨率分别高于25 lp/mm@MTF=10%和16 lp/mm@MTF=10%.在Tscreen=0.5 ns时,同步条纹管的时间分辨率优于5.6 ps.此外,实验测试得到在400 nm波长处,光电阴极的辐射灵敏度为51 mA/W,光电阴极有效面积内的静态空间分辨率高于25 lp/mm@CTF=13%.
|
| 关 键 词： | 同步条纹管 物理时间分辨率 空间分辨率 阴极有效面积 全屏时间 阴极灵敏度 调制传递函数 |
Spatio-temporal Resolution Studies on a Synchronous Streak Tube |
| |
| TIAN Liping,SHEN Lingbin,CHEN Lin,LI Lili,CHEN Ping,TIAN Jinshou.Spatio-temporal Resolution Studies on a Synchronous Streak Tube[J].Acta Photonica Sinica,2021,50(4):143-152. |
| |
| Authors: | TIAN Liping SHEN Lingbin CHEN Lin LI Lili CHEN Ping TIAN Jinshou |
| |
| Institution: | (School of Network and Communication Engineering,Jinling Institute of Technology,Nanjing 211169,China;Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology,State Key Laboratory of Transient Optics and Photonics,Xi’an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi’an 710119,China) |
| |
| Abstract: | A synchronous streak tube capable of providing high spatial resolution,high temporal resolution and large working area is numerically designed and experimentally demonstrated.In this paper,a 3-D model developed to systematically and comprehensively analyze the dependence of the physical temporal resolution on the accelerating voltage,the spatial resolution on the deflector-to-cathode distance,the dynamic spatial resolution and temporal resolution on the scanning velocity.Finally,geometry and electric parameters of dDC=100 mm,Ug=700 V,and Tscreen=0.5 ns are proposed to optimize the streak tube performances.The numerical simulations show that the static spatial resolution is higher than 25 lp/mm@MTF=10%and the dynamic spatial resolution is higher than 16 lp/mm@MTF=10%over the whole effective photocathode area of 18 mm×2 mm.And,the simulated temporal resolution is better than 5.6 ps at Tscreen=0.5 ns.Furthermore,the photocathode radiant sensitivity can reach 51 mA/W at the wavelength of 400 nm.The tested static spatial resolution is as high as 25 lp/mm@CTF=13%. |
| |
| Keywords: | Synchronous streak tube Physical temporal resolution Spatial resolution Photocathode effective area Full-screen time Photocathode radiant sensitivity Spatial transfer modulation function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
