NSSC OpenIR  > 空间科学部
Alternative TitleAna lysis of L ibrary Simu lation Exper imen ts of EUVI
程炳钧; 王劲东; 李 磊; 北京8701信箱
Source Publication科学技术与工程
Keyword极紫外成像 单光子成像 仿真成像
Abstract地球等离子体层中He+对太阳辐射中的30.4 nm波长的极紫外(EUV,extreme ultraviolet)辐射形成共振散射。由于等离子层中的He+的30.4 nm辐射近似满足光学薄假设,因而其强度反映了He+的柱密度。因此,对地球等离子体30.4 nm极紫外辐射成像可以直接对地球等离子层进行探测,是研究地球空间磁层空间暴的触发机制和物理模型的重要手段,是进行精确磁暴预测、地球空间环境研究、空间天气预报、自然灾害预测等研究的重要途径。极紫外成像仪(EUVI)通过对30.4 nm的He+共振散射分布进行成像,实现对于地球等离子体层的冷等离子体分布进行研究的目的。首先对极紫外成像仪的工作原理以及成像机理进行了简要描述,对其成像过程进行了介绍。之后根据已研制完成的极紫外成像仪原理样机实验室仿真实验情况,对波形发生器仿真实验与实验室光源-探测器成像仿真实验两种实验方式的原理及实验结果进行了分析研究。根据实验结果,进一步验证了极紫外成像仪信号处理系统原理设计的可行性与正确性。同时,根据实验结果中出现的问题,也为对成像仪系统的进一步优化提供方向。
Other AbstractThe resonantly2scattered emission ofH e+ , in p lasma of the earth, forms the extreme u ltraviole.t Because the resonantly2scattered emission ofH e+ at 30. 4 nm satisfies the assumption of optica lly th in, its intensity images the integrated column density ofHe+ . The method of imaging the resonantly2scattered emission ofHe+ at 30. 4 nm is the ma in technique to research the occurringmechanism and physical models of the earth. s magnetic storm. And it is the main approach to accurate ly forecast the geomagnetic storm, to do research on the earth space environmen,t to forecast the space weather and to forecast the natura l disaster. The Extreme U ltraviolet Imager ( EUVI) is designed to study the d istribution of cold plasma in Earth. s plasmasphere by imaging the d istribution of the He+ ion through its em ission at 30. 4 nm. It is firstly described theworking princ ip le of the EUV imager, ana lyzed the process of imaging and introduced the constitutes of the imager system. And then accord ing to the library simu lation examination ofEUVI, it ana lyzed the /Waveform generator simu lation experiment0 and the / L ight source2 detector imaging simulation experiment0. At last the feasib ility and correctness of design ing princ ip le of the EUV imager are va lidated by lab simulation experimen.t
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
程炳钧,王劲东,李 磊,等. 极紫外成像仪实验室仿真实验[J]. 科学技术与工程,2010,10(6):1347-1352.
APA 程炳钧,王劲东,李 磊,&北京8701信箱.(2010).极紫外成像仪实验室仿真实验.科学技术与工程,10(6),1347-1352.
MLA 程炳钧,et al."极紫外成像仪实验室仿真实验".科学技术与工程 10.6(2010):1347-1352.
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