机构

• 上海应用物理研究所 [2]
• 长春光学精密机械与物... [1]
• 中国科学院大学 [1]

采集方式

• OAI收割 [3]
• iSwitch采集 [1]

内容类型

• 期刊论文 [3]
• 会议论文 [1]

发表日期

• 2016 [1]
• 2014 [2]
• 2008 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Optimal design of near-earth asteroid sample-return trajectories in the sun-earth-moon system 期刊论文  iSwitch采集 Acta mechanica sinica, 2016, 卷号: 32, 期号: 4, 页码: 753-770 作者:  He, Shengmao;  Zhu, Zhengfan;  Peng, Chao;  Ma, Jian;  Zhu, Xiaolong 收藏  |  浏览/下载：38/0  |  提交时间：2019/05/09 Near-earth asteroid  Sample-return trajectory  Space trajectory design competition  Orbital resonance  Lunar gravity assist   Structure Evolution During Uniaxial Tensile Deformation of High Density Polyethylene Before and After Irradiation by 1 MeV Electrons 期刊论文  OAI收割 JOURNAL OF APPLIED POLYMER SCIENCE, 2014, 卷号: 131, 期号: 10 Rui, EM; Yang, JQ; Li, XJ; Liu, CM; Tian, F; Gao, F; Li, XH; Geng, HB 收藏  |  浏览/下载：34/0  |  提交时间：2015/03/13 X-RAY-SCATTERING  MOLECULAR-WEIGHT POLYETHYLENE  STRAIN-INDUCED CRYSTALLIZATION  NEAR-EARTH SPACE  SYNCHROTRON-RADIATION  PLASTIC-DEFORMATION  LINEAR POLYETHYLENE  SMALL-ANGLE  RATES  SAXS   Effect of 110 keV electrons on the deformation mechanisms of low density polyethylene 期刊论文  OAI收割 POLYMER DEGRADATION AND STABILITY, 2014, 卷号: 109, 页码: 59—70 Rui, EM; Yang, JQ; Li, XJ; Liu, CM; Tian, F 收藏  |  浏览/下载：34/0  |  提交时间：2015/03/13 X-RAY-SCATTERING  MOLECULAR-WEIGHT POLYETHYLENE  STRAIN-INDUCED CRYSTALLIZATION  NEAR-EARTH SPACE  SYNCHROTRON-RADIATION  UNIAXIAL DEFORMATION  TENSILE DEFORMATION  PLASTIC-DEFORMATION  LINEAR POLYETHYLENE  SMALL-ANGLE   Design of optical elements for imaging the earth's plasmasphere (EI CONFERENCE) 会议论文  OAI收割 International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Optoelectronic System Design, Manufacturing, and Testings, September 9, 2007 - September 12, 2007, Beijing, China 作者:  Chen B.;  Chen B.;  Wang X.-K. 收藏  |  浏览/下载：32/0  |  提交时间：2013/03/25 Studying the distribution of He+ in Earth's plasmasphere by detecting its resonantly-scattered emission at 304A will record the structure and dynamics of the cold plasma in Earth's plasmasphere on a global scale. EUV imaging systems usually utilizes near normal incidence optics including multilayer mirror and filter. In this paper  the space condition of the Earth's plasmasphere to confirm the expected performance of mirror and filter for this task were analyzed and some guidelines for the design of the optical elements were introduced. In order to achieve higher response at 304A and reduce 584A radiation for the optical system  a new multilayer coating of Mo/Si with UOx (x=2-3) was developed  and it is indicated that promising filter material is Al/C with a nickel mesh. In addition  we compute the reflectance of multilayer mirror based on optical constants and the transmission of the filter based on atomic scattering factor. The results show the multilayer mirror has high reflectance of 26.27% at 304 Aand low reflectance of 0.60% at 584A. Finally  the conversion efficiency of mirror coupled with filter is 6.88% at 304A and 0.01% at 584 A.