[1]李翔,顾礼,宗方轲,等.高能X射线入射时CsI光阴极的光电发射特性[J].深圳大学学报理工版,2016,33(No.3(221-330)):254-258.[doi:10.3724/SP.J.1249.2016.03254]
 Li Xiang,Gu Li,Zong Fangke,et al.Photoemission characteristics of a CsI photocathode under high energy X-ray[J].Journal of Shenzhen University Science and Engineering,2016,33(No.3(221-330)):254-258.[doi:10.3724/SP.J.1249.2016.03254]
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高能X射线入射时CsI光阴极的光电发射特性()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第33卷
期数:
2016年No.3(221-330)
页码:
254-258
栏目:
光电工程
出版日期:
2016-05-20

文章信息/Info

Title:
Photoemission characteristics of a CsI photocathode under high energy X-ray
文章编号:
201603005
作者:
李翔顾礼宗方轲杨勤劳
深圳大学光电工程学院,光电子器件与系统教育部/广东省重点实验室,广东深圳518060
Author(s):
Li Xiang Gu Li Zong Fangke and Yang Qinlao
College of Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, Guangdong Province, P.R.China
关键词:
半导体技术CsI光阴极惯性约束聚变X射线条纹相机高能X射线蒙特卡罗模型
Keywords:
semiconductor technology CsI photocathode inertial confinement fusion X-ray streak camera high energy X-ray Monte Carlo model
分类号:
O 434.1
DOI:
10.3724/SP.J.1249.2016.03254
文献标志码:
A
摘要:
采用蒙特卡罗方法建立模型,研究CsI光阴极在高能X射线照射时的光电发射特性,得到X射线条纹相机中CsI光阴极在高能X射线入射时的性能参数.计算CsI光阴极厚度为100~1 000 nm,入射X射线能量为1~30 keV时CsI光阴极的量子产额、出射二次电子的角度分布、位置分布以及能量分布.结果显示,CsI光阴极在高能X射线入射时的极限空间分辨率约为7~9 nm,可满足X射线条纹相机对高时空分辨的使用需求.
Abstract:
A model to investigate the characteristics of high energy X-ray induced secondary electron (SE) emission from a CsI photocathode used in an X-ray streak camera is proposed by the Monte Carlo method. The quantum yield of the CsI photocathode and the angular distribution, position distribution and energy distribution of the emitted SEs are calculated with the incident X-ray energy range from 1 to 30 keV and a CsI thickness from 100 to 1 000 nm. Simulation results indicate that the spatial resolution limit of a CsI photocathode is about 7~9 nm when high energy X-ray irradiates. Therefore CsI photocathode is able to satisfy the operating requirement for high temporal resolution and spatial resolution of an X-ray streak camera.

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备注/Memo

备注/Memo:
Received:2015-12-23;Accepted:2016-02-26
Foundation:National Key Scientific Instrument and Equipment Development Projects (2014YQ230659)
Corresponding author:Professor Yang Qinlao.E-mail: qlyang@szu.edu.cn
Citation:Li Xiang,Gu Li,Zong Fangke,et al.Photoemission characteristics of a CsI photocathode under high energy X-ray[J]. Journal of Shenzhen University Science and Engineering, 2016, 33(3): 254-258.(in Chinese)
基金项目:国家重大科学仪器设备开发专项基金资助项目(2014YQ230659)
作者简介:李翔(1984—),男,深圳大学博士研究生.研究方向:CsI光阴极. E-mail:2116190103@email.szu.edu.cn
引文:李翔,顾礼,宗方轲,等. 高能X射线入射时CsI光阴极的光电发射特性[J]. 深圳大学学报理工版,2016,33(3):254-258.
更新日期/Last Update: 2016-05-08