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环形电子束积分图像诊断技术
引用本文:郭明安,罗剑辉,黑东炜,孙凤荣,罗通顶,马戈,李刚,魏福利.环形电子束积分图像诊断技术[J].强激光与粒子束,2011,23(6).
作者姓名:郭明安  罗剑辉  黑东炜  孙凤荣  罗通顶  马戈  李刚  魏福利
作者单位:西北核技术研究所, 西安 710024
基金项目:国家高技术发展计划项目
摘    要: 采用图像诊断方法对高能环形电子束形状及空间尺寸进行了研究,以高能脉冲环形电子束轰击高Z靶材料产生脉冲X射线,X射线经过X射线增感屏转换为可见光,用单次图像采集系统获取可见光的积分图像。为满足诊断所需的空间分辨和系统灵敏度,通过理论计算确立了靶的材料、厚度及X射线增感屏的型号和厚度等参数。根据测试环境,设计了系统的现场安装结构,系统基本满足测试要求。分析从实验中获取的图像,可知环形电子束的内径为36.5 mm,环厚为1 mm,环形不均匀,水平方向电子束强。

关 键 词:环形电子束  图像诊断  X射线增感屏  CCD
收稿时间:1900-01-01;

Integral image diagnosis of annular electron beam
Guo Ming'an,Luo Jianhui,Hei Dongwei,Sun Fengrong,Luo Tongding,Ma Ge,Li Gang,Wei Fuli.Integral image diagnosis of annular electron beam[J].High Power Laser and Particle Beams,2011,23(6).
Authors:Guo Ming'an  Luo Jianhui  Hei Dongwei  Sun Fengrong  Luo Tongding  Ma Ge  Li Gang  Wei Fuli
Institution:(Northwest Institute of Nuclear Technology, P.O.Box 69-9, Xi’an 710024, China)
Abstract:The technique and system integration of imaging system to diagnose annular electron beam were introduced. The system is constructed basing on the principle and technology of digital flash X-ray intensifying screen. The principle is that the X-rays are emitted when the target material is bombarded by the high energy annular electron beam, the scintillator is irradiated by the X-ray outputs visible light. which is recorded by digital imaging system. In order to achieve necessary system sensitivity and spatial resolution, the target material and the maximum target thickness were ascertained by theoretic computing. The measure ment systems for field test fielded were designed, and its performance is well suited to testing application. The annular electron beam image was acquired, which shows
Keywords:image diagnosis  X-ray intensifying screen  CCD
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