摘要
为改善X射线瞬时成像的空间光学传递能力,提出了一种基于X射线像增强器的自适应频控电源拓扑模型。通过分析X射线瞬时成像所面临的约束条件,探究X射线像增强器的空间光学传递模型,指出根据入射X射线剂量动态自适应调整X像增强器的电子倍增能力对最终成像的对比度十分重要。在此基础上,最终构建了基于过零电压震荡频率反馈的自适应门控电源控制模型,并通过成像实验证明,利用所提出的自适应频控技术可以有效提升X射线瞬时成像的整体分辨能力。
In order to improve the space optical transfer ability of X-ray instantaneous imaging,an adaptive frequency-controlled power supply topology model based on X-ray image intensifier is proposed.By analyzing the constraints faced by X-ray instantaneous imaging,the space optical transfer model of X-ray image intensifier is explored.It is pointed out that the dynamic adaptive adjustment of electron multiplication capability of X-ray image intensifier according to the incident X-ray dose is very important for the final imaging contrast.On this basis,the adaptive gated power control model is finally constructed based on zero-crossing voltage oscillation frequency feed-back,and through the imaging experiment,it is proved that the adaptive frequency control technology proposed can effectively improve the overall resolution of X-ray instantaneous imaging.
作者
王贺
常峻玮
汪智
尚瑞瑞
母一宁
WANG He;CHANG Junwei;WANG Zhi;SHANG Ruirui;MU Yining(College of Traffic Information,Jilin Communications Polytechnic,Changchun Jilin 130130,China;Chongqing Institute,Changchun University of Science and Technology,Chongqing 400020,China;Shenzhen Jingzhihua Medical Technology Co.,Ltd.,Shenzhen Guangdong 518107,China;Gearchief Eissmann Changchun Automotive Parts Co.,Ltd.,Changchun Jilin 130013,China)
出处
《电子器件》
CAS
北大核心
2023年第6期1697-1701,共5页
Chinese Journal of Electron Devices
基金
吉林省教育厅科研项目(JJKH20231036KJ)
吉林交通职业技术学院高等职业教育研究基地项目(2022JD04)
交通服务机器人科研创新团队项目(JYJSTD2022-1-4)
吉林省中青年科技创新创业卓越人才(团队)项目(20220508147RC)。
