光学学报, 2018, 38 (12): 1211003, 网络出版: 2019-05-10
大物面高时空分辨X射线条纹管成像研究 下载: 1058次
Imaging of Large Format High Spatiotemporal Resolution X-Ray Streak Tube
成像系统 X射线条纹相机 大物面 时间分辨率 空间分辨率 动态范围 imaging systems X-ray streak camera large format temporal resolution spatial resolution dynamic range
摘要
为了满足惯性约束聚变(ICF)实验对X射线条纹相机提出的新技术要求,设计并研制了一种大物面X射线条纹变像管,利用球面荧光屏减轻场曲的影响,并通过提高阳极总压、增大偏转灵敏度来提高时间分辨率。测试结果表明:阴极有效长度可达40 mm,静态空间分辨率信息分辨总量可达1000 lp,动态空间分辨率为20 lp/mm,时间分辨率达3.3 ps,动态范围可达2281∶1,能满足ICF实验所提出的大信息捕捉量的要求。
Abstract
To meet the advanced technical requirements on X-ray streak camera in the inertial confinement fusion (ICF) experiments, a large format X-ray streak tube is designed and fabricated, in which a spherical phosphor screen is used to alleviate the influence of field curvature and also the increase of anode total voltage and deflection sensitivity is used for the improvement of time resolution. The test results show that the effective length of photocathode is 40 mm, the total static spatial resolution amount is 1000 lp, the dynamic spatial resolution is 20 lp/mm, the temporal resolution is 3.3 ps, and the dynamic range is 2281∶1, which can meet the capturing requirement of a large amount of information in the ICF experiments.
张敬金, 宗方轲, 雷保国, 郭宝平, 杨勤劳. 大物面高时空分辨X射线条纹管成像研究[J]. 光学学报, 2018, 38(12): 1211003. Jingjin Zhang, Fangke Zong, Baoguo Lei, Baoping Guo, Qinlao Yang. Imaging of Large Format High Spatiotemporal Resolution X-Ray Streak Tube[J]. Acta Optica Sinica, 2018, 38(12): 1211003.