IT-CCD串扰强度与积分时间的无关性研究  

Independence of the Crosstalk Intensity on Integration Time in IT-CCD

作　　者：张震[1,2] 程德艳[1,2] 师宇斌[1,2] 盛良[1,2] 张检民[1,2] 徐作冬[1,2] 林新伟[1,2] 邵碧波[1,2] 

机构地区：[1]西北核技术研究所,西安710024 [2]激光与物质相互作用国家重点实验室,西安710024

出　　处：《现代应用物理》2015年第2期81-84,共4页Modern Applied Physics

基　　金：国家自然科学基金资助项目(11405132);激光与物质相互作用国家重点实验室基金(SKLLIM1302;SKLLIM1401Z)

摘　　要：利用632.8 nm连续激光辐照以KAI-1020型IT-CCD为图像传感器的Basler piA1000-48 gm相机,观察了CCD相机输出视频中通过光斑中心区域贯穿整个画面的均匀串扰线现象。实验发现,当成倍改变相机的积分时间时,与光斑及环境杂光亮度产生明显变化不同,串扰线宽度及亮度几乎不变。通过对IT-CCD激光光斑均匀串扰线产生机制的进一步分析,对串扰线强度与积分时间的无关性进行了解释。A Basler piA1000-48 gm camera with an image sensor of KAI-1020 IT-CCD was irradiated by a 632.8 nm CW laser, and we observed in the video of the camera a crosstalk line through the laser spot and throughout the whole image. We investigated the crosstalk exper- imentally and found that, when the integration time of the IT-CCD is altered doubly, the brightness of laser spot and ,;tray light spots changes obviously, but the width and brightness of the crosstalk line almost remains unchanged. We further analyzed the relation of the integration time with the intensity of the crosstalk, and discussed the main cause for the independence of the integration time on the crosstalk intensity.

关 键 词：IT-CCD 激光光斑 串扰强度 积分时间 

分 类 号：TN249[电子电信—物理电子学]