发光学报2011，Vol.32Issue(8)：816-820,5.DOI:10.3788/fgxb20113208.0816
微通道板离子壁垒膜粒子阻透特性的蒙特卡罗模拟
Monte-Carlo Simulations on The Stopping and Transmittance Characteristics of Particles in The Ion Barrier Film of Microchannel Plate
姜德龙 1房立峰 2那延祥 1李野 1田景全1
作者信息
- 1. 长春理工大学理学院,吉林长春130022
- 2. 中国兵器工业第214研究所,安徽蚌埠233042
- 折叠
摘要
Abstract
In the third-generation low-level-light image tube,a super thinner ion barrier film (IBF) was covered on the input surface of microchannel plate (MCP) to protect the photocathode and prolong the operation life of the image tube.In order to further investigate the properties of IBF,a Monte-Carlo simulation on the stopping and transmission characteristics of particles in Al2O3 and SiO2 IBFs were conducted.It was fotmd that the dead-voltnge was 230 ～240 V and 220 ～230 V for Al2O3 and SiO2 IBF with the thickness of 5 nm,respectively.The number of the back-acattered electron was as high as 19% for the incident electrons with energy of 0.24 ke V.For the incident energy of 0.8 ke V,the electron transmittance was 87.16% and 88.12%,and the limited thickness of the IBF was 15 nm and 16nm for Al2O3 and SiO2 film,respectively.For C +,N + and O + ions with energy of 0.26 keY,the ion stopping power was 95% ～99% for Al2O3 IBF.The Al2O3 IBF showed satisfied electron transmittance and ion stopping power when the thickness of IBF was 5 nm.关键词
微通道板/离子壁垒膜/蒙特卡罗模拟/电子透过/离子阻止Key words
microchannel plate/ ion barrier film/ Monte-Carlo simulation/ electron transmittance/ ion stopping分类
信息技术与安全科学引用本文复制引用
姜德龙,房立峰,那延祥,李野,田景全..微通道板离子壁垒膜粒子阻透特性的蒙特卡罗模拟[J].发光学报,2011,32(8):816-820,5.
