高速分幅相机在强流脉冲电子束调试中的应用研究  

Application of High Speed Framing Camera in Debugging of High Current and Pulsed Electron Beam

作　　者：江孝国[1] 王远[1] 代志勇[1] 杨志勇[1] 李洪[1] 臧宗旸[1] 谢宇彤[1] 刘云龙[1] 叶毅[1] 

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621900

出　　处：《激光与光电子学进展》2014年第2期148-154,共7页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(10675104)

摘　　要：高能强流脉冲电子束的束参数测量是加速器研制及调试中必不可少的一部分,它对测量设备的要求极高,必须具有高的时间分辨能力、较高的抗干扰能力及较高的灵敏度等性能。为了满足这种要求,研制了一种新的高性能超高速的三分幅相机。该分幅相机采用一种成像质量较好的会聚光成像的全口径分光原理,再结合高速的图像增强器、科学CCD相机及大规模集成电路等技术,使其具有了快门时间和幅间时间独立控制的能力,灵活的控制方式很好地满足了调试中的各种测试要求,并且在有效像面面积达到Φ25mm的情况下可以获得约3 ns的最高快门速度以及好于35 lp/mm的像面空间分辨率,圆满地完成了强流脉冲电子束的调试工作。The measurement of electron beam parameters is very important for a linear induction accelerator （LIA）. The measurement equipments must meet the demands of high time resolution, high sensitivity and high stability. The ultra-high-speedperformance is especially the most important one.One kind of 3-frame framing camera with ultra-high-speed and high performance has been developed recently. The optical principle of the framing camera is based on splitting the focused imaging light beam in the field of image space. It features good imaging quality and high light energyefficiency. The gated image intensifier with high speed shutter, the scientific CCD camera and the high speed controller based on large scale field programmable gate array are the main portions. The shutter time and the frame interval time can be set independently. The effective image size is 25 mm in diameter. The highest shutter time is about 3 ns. The spatial resolution is better than 35 lp/mm inimage space.

关 键 词：光学设计 分幅相机 门控型图像增强器 科学CCD相机 分光棱镜 

分 类 号：O463.1[机械工程—光学工程] TB86[理学—电子物理学]