【作者】 张立平；

【Author】 Zhang Li-ping (Changchun Institute of Optics,fine Mechanics and Physics, Chinese Academy of Sciences,Changchun,China,130033 )

【机构】 中国科学院长春光学精密机械与物理研究所；

【摘要】 地球等离子体层的结构特性和辐射特性是空间天气监测和预报的重要研究内容,在分析等离子体层特性的基础上,引入30.4nm成像观测的科学目标。为了对地球等离子体层产生的30.4nm辐射进行全方位、长期的监视观测,研制月基极紫外(EUV)波段光学有效载荷。本文在分析科学目标的基础上,进行了极紫外(EUV)相机光机结构的设计,工程分析结果表明,EUV相机的光机结构满足月球环境对地球等离子体层30.4nm辐射成像的要求,验证了月基EUV相机的可行性。更多还原

【Abstract】 Structure and radiation characteristic of the earth’s plasmasphere is main subject investigated to monitor and forecast space weather.Based on analysis of earth’s plasmasphere,the scientific target on imaging of 30.4 nm radiation is introduced.In order to monitor and research 30.4 nm radiation generated by plasmasphere,the lunar-based extreme ultraviolet camera is developed.In this paper,the optical-mechanical structure of lunar-based extreme ultraviolet camera is designed,a multilayer mirror optical system and 30.4 nm photon counting detector is adopted as design project,and two-dimensional tracing mechanism is used to trace the earth.The finite element analysis illustrate that the optical-mechanical structure of the extreme ultraviolet camera meet to need of imaging on 30.4 nm radiation generated by earth’s plasmasphere,and verified the feasibility of lunar-based extreme ultraviolet camera.更多还原