高压充气电离室高速成像的图像仿真  

Image simulation of high-speed imaging by high-pressure gas ionization detector

作　　者：苗积臣[1] 吴志芳[1] 刘锡明[1] 

机构地区：[1]清华大学核能技术设计研究院,北京100084

出　　处：《核电子学与探测技术》2005年第2期142-145,共4页Nuclear Electronics & Detection Technology

基　　金：科技部十五攻关项目(2002BA406B03)

摘　　要：货运列车检测系统图像采集时间短,小于探测器离子漂移时间,相邻像素之间存在一定的累积,对这种累积效应进行了分析,并通过图像仿真方法仿真了部分图像并研究了在此状况下指标估算的影响因子,仿真结果和实验结果基本一致。The signal of the neighbor pixels is cumulated in Freight Train Inspection System because data fetch time is shorter than ion excursion time. This paper analyzes the pertinency of neighbor pixels and designs computer simulation method to generate some emulate images such as indicator image. The result indicates the high-pressure gas ionization detector can be used in high- speed digital radiography field.

关 键 词：图像采集 仿真结果 高速 相邻像素 检测系统 仿真方法 探测器 成像 漂移 高压 

分 类 号：TL811.1[核科学技术—核技术及应用]