检索结果-南通市图书馆

维普期刊数据库博看期刊

同方期刊数据库

在线全文

学校读者我要写书评

暂无评论

风云三号E星空间环境载荷综合探测技术

北京大学学报（自然科学版） 2024年第1期60卷 145-156页

作者：沈国红黄聪张鹏飞张效信王金华李佳薇宗位国张珅毅张贤国孙越强杨勇张焕新邹鸿王劲东孙莹白超平田峥中国科学院国家空间科学中心北京100190 北京市空间环境探测重点实验室北京100190 中国气象局国家卫星气象中心北京市空间天气重点实验室北京100081 许健民气象卫星创新中心北京100081 上海卫星工程研究所上海201109 北京大学地球与空间科学学院北京100871

针对中国风云三号卫星运行的低地球太阳同步轨道,开展空间环境及粒子辐射效应监测,提出基于空间环境监测器Ⅱ型载荷的综合探测技术。在各载荷技术指标的地面研制过程中,通过标准放射源、等效信号源、粒子加速器和标准磁场等不同方式进... 详细信息

针对中国风云三号卫星运行的低地球太阳同步轨道,开展空间环境及粒子辐射效应监测,提出基于空间环境监测器Ⅱ型载荷的综合探测技术。在各载荷技术指标的地面研制过程中,通过标准放射源、等效信号源、粒子加速器和标准磁场等不同方式进行标定和实验验证。结果表明,多方向全能谱粒子探测的能量范围为30 keV~300 MeV,精度优于10%;磁场强度测量范围为-65023~+65023 nT,精度优于0.73 nT;电位探测范围为-32.4~+23.7 kV,灵敏度优于10 V;辐射剂量探测范围为0~3×10^(4) rad(Si),灵敏度优于8.3 rad(Si)。通过空间环境监测器Ⅱ型载荷对卫星运行轨道上的粒子辐射环境、原位磁场矢量变化、辐射剂量累积以及卫星表面电位变化等进行观测,可以为航天活动、卫星设计、空间科学研究及空间天气预警预报业务提供必要的数据支撑。

关键词：空间环境粒子探测电位探测辐射剂量磁场探测

维普期刊数据库博看期刊

Space Environment Measurements and Applications on the Tianhe Core Module of China Space Station

在线全文

学校读者我要写书评

暂无评论

空间科学学报 2022年第4期42卷 744-753页

作者： LIU Siqing SUN Yueqiang ZHONG Qiuzhen WEI Fei LIN Ruilin LI Zhitao REN Tingling LI Yongping zhang Xianguo zhang shenyi LUO Bingxian CHANG Zhen WANG Chunqin PENG Songwu AI Jiangzhao State Key Laboratory of Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190 Key Laboratory of Science and Technology on Environmental Space Situation Awareness Chinese Academy of SciencesBeijing 100190 University of Chinese Academy of Sciences Beijing 100049

Tianhe Core Module of China Space Station(CSS)equips a set of instruments consisting of a Particle Fluxes and Solar Activity Detector(PFSAD)and two Atmospheric Density Multi-directional Detectors(ADMDs).The PFSAD is to measure X-rays from the Sun and energetic particles in the low-latitude and low altitude regions,including electrons,protons,and helium *** ADMDs are to measure thermospheric atmospheric *** instruments provide real-time data of the orbital space environment,including solar flares,energetic particle variation and thermospheric density *** the data contribute to the CSS space weather service for mission control and astronaut’s *** paper gives preliminary analyses of the space environment measurements from the PFSAD and the *** further analysis,the 1024-channel fine spectra of the solar X-ray can be used to study the mechanism of solar flares and their impacts on the Earth’s *** accumulation will be helpful for analyzing mid-term and long-term variations of the South Atlantic Anomaly and atmosphere ***,the data are useful to calibrate previous empirical models and establish new models to study the space environment.

关键词： Space environment Tianhe core module China Space Station(CSS)

The geometric factor of high energy protons detector on FY-3 satellite

在线全文

学校读者我要写书评

暂无评论

Science China Earth Sciences 2014年第11期57卷 2558-2566页

作者： zhang shenyi zhang XianGuo WANG ChuiQin SHEN GuoHong JIN Tao zhang BinQuan SUN YueQiang ZHU GuangWu LIANG JinBao zhang XiaoXin LI JiaWei HUANG Cong HAN Ying Center for Space Science and Applied Research Chinese Academy of Sciences National Center for Space Weather Beijing Institute of Petrochemical Technology

Geometric factor is the key parameter for inversion of particle spectrum in space particle detection. Traditional geometric factor is obtained through the method of numerical calculation with the actual structure of the detector as the input condition. The degree of accuracy for data inversion is reduced since traditional geometric factor fails to take into account the physical process of interaction between the particle and substance as well as the influence of factors such as the particle interference between different energy channels on the measurement result. Here we propose an improved geometrical factor calculation method, the concept of which is to conduct actual structural modelling of the detector in the GEANT4 program, consider the process of interaction between the particle and substance, obtain the response function of the detector to particles of different energy channels through the method of Monte Carlo simulation, calculate the influence of contaminated particle on the geometrical factor, and finally get the geometrical factors for different energy channels of the detector. The imrpoved geometrical factor obtained through the method has carried out inversion for the data of high energy protons detector on China's FY-3 satellite, the energy spectrum after which is more in line with the power law distribution recognized by space physics. The comparison with the measured result of POES satellite indicates that the FY-3 satellite data are in good accordance with the satellite data, which shows the method may effectively improve the quality of data inversion.

关键词：卫星数据高能质子探测器几何要素蒙特卡罗模拟方法几何因子数值计算 GEANT4

Cross-calibration of high energetic particles data——A case study between FY-3B and NOAA-17

在线全文

学校读者我要写书评

暂无评论

中国科学：技术科学英文版 2013年第11期56卷 2668-2674页

作者： WANG ChunQin zhang XianGuo LI JiaWei HUANG Cong zhang XiaoXin JING Tao SHEN GuoHong zhang shenyi CAO GuangWei SUN YueQiang LIANG JinBao ZHU GuangWu HAN Ying Center for Space Science and Applied Research Chinese Academy of Sciences University of Chinese Academy of Sciences National Satellite Meteorological Center National Center for Space Weather Beijing Institute of Petrochemical Technology

Cross-calibration of high energetic particle data is a primary requirement for the availability of multi-instrument,multi-spacecraft *** also can provide a method to verify relative reliability of data from single satellite *** paper presents a case study of energetic particles data cross-calibration between FY-3B and NOAA-17.A generally good agreement is acquired in the flux values and distribution trend of 2.5–6.9 MeV protons and 0.3–1.1 MeV electrons between FY-3B and NOAA-17 *** suggests that the data observed by FY-3B is properly *** can also confirm that energetic particles data observed by FY-3B satellite is available.

关键词：交叉定标粒子数高能案例卫星观测测量数据可用性航天器

Proton belt variations traced back to Fengyun-1C satellite observations

在线全文

学校读者我要写书评

暂无评论

Earth and Planetary Physics 2020年第6期4卷 611-618页

作者： ChunQin Wang Zheng Chang XiaoXin zhang GuoHong Shen shenyi zhang YueQiang Sun JiaWei Li Tao Jing HuanXin zhang Ying Sun BinQuan zhang National Space Science Center Chinese Academy of SciencesBeijing 100190China Beijing Key Laboratory of Space Environment Exploration Beijing 100190China Environmental Space Situation Awareness-SSA Beijing 100190China National Center for Space Weather China Meteorological AdministrationBeijing 100081China

We used historical data to trace trapped protons observed by the Fengyun-1C(FY-1C)satellite at low Earth orbits(~800 km)and chose data at 5–10 MeV,10–40 MeV,40–100 MeV,and^100–300 MeV from 25 March to 18 April 2000 to analyze the proton *** one isolated strong storm was associated with a solar proton event during this period,and there was no influence from previous proton *** dynamic phenomena of proton trapping and loss were affected by this disturbance differently depending on the energy and L *** flux of 5–10 MeV protons increased and created new trapping with a maximum at L^2.0,and the peak flux was significantly higher than that at the center of the South Atlantic ***,at higher L,the flux showed obvious loss,with retreat of the outer boundary from L^2.7 to L^*** increase in the 10–40 MeV proton flux was similar to that of the 5–10 MeV flux;however,the peak flux intensity was lower than that at the center of the South Atlantic *** loss of the 10–40 MeV proton flux was closer to the Earth side,and the outer boundary was reduced from L^2.3 to L^*** the higher energy protons of 40–100 MeV and 100–300 MeV,no new trapping was *** of the 40–100 MeV protons was observed,and the outer boundary shifted from L^2.0 to L^*** was not obvious for the 100–400 MeV protons,which were distributed within L<*** proton trapping was more likely to be created at lower energy in the region of solar proton injection by the strong magnetic storm,whereas loss occurred in a wide energy range and reduced the outer boundary on the Earth *** dynamic changes were observed by the NOAA-15 satellite in the same period,but the FY-1C satellite observed more complex changes in lower energy *** results revealed that the dynamic behavior of protons with different L-shells was due to differences in the pitch *** mechanisms related to new trapping and loss are also *** mechanisms ar

关键词： high-energy proton trapping loss disturbance inner radiation belt

在线全文

学校读者我要写书评

暂无评论

月球空间天气探测与研究进展

深空探测学报（中英文） 2024年第2期11卷 159-168页

作者：罗冰显张贤国孙天然白先勇韦飞林瑞淋李磊张珅毅孔令高王馨悦谢良海彭松武唐斌斌张颖洁徐秋予冷双冯鹏远苏杨甘为群封莉田晖陈林杰颜毅华宋永亮刘四清邓元勇空间天气学国家重点实验室北京100190 中国科学院空间环境态势感知技术重点实验室北京100190 中国科学院国家空间科学中心北京100190 中国科学院大学北京100049 天基空间环境探测北京市重点实验室北京100190 中国科学院国家天文台北京100101 中国科学院紫金山天文台南京210023 北京大学地空学院北京100871

稳定的天体地质构造、与地球合适的距离、无稠密大气和全球磁场,使得月球成为日地月空间天气监测和研究的天然优良实验室。回顾了国内外月球空间天气探测和研究进展,梳理了月球空间天气关键科学问题及预报应用问题,提出了建立月球空间... 详细信息

稳定的天体地质构造、与地球合适的距离、无稠密大气和全球磁场,使得月球成为日地月空间天气监测和研究的天然优良实验室。回顾了国内外月球空间天气探测和研究进展,梳理了月球空间天气关键科学问题及预报应用问题,提出了建立月球空间天气监测站的构想,明确了监测站具体科学目标,并介绍了监测站三大系统构成及相互关系,包括监测系统、科学研究系统以及建模与预报系统。建立月球空间天气监测站对研究太阳爆发活动、日地月耦合关系以及月球局地环境的变化具有重要的科学意义,也有利于促进月球空间天气建模和预报技术的发展,提升未来月球科研探索任务空间环境保障能力。

关键词：月球空间天气月球空间天气探测和研究月球空间天气监测站月球空间天气预报

同方期刊数据库

用于空间中高能离子探测的飞行时间(TOF)质谱仪——发展现状与展望

在线全文

学校读者我要写书评

暂无评论

地球物理学报 2022年第10期65卷 3743-3758页

作者：张伟杰张珅毅张贤国叶依众中国科学院国家空间科学中心北京100190 中国科学院大学北京100049 天基空间环境探测北京市重点实验室北京100190 中国科学院空间环境态势感知技术重点实验室北京100190

对空间中能量介于几十keV到几MeV的离子进行成分、能谱、通量和角分布等信息的测量,具有十分重要的科研和应用价值.20世纪80年代,一种基于二次电子发射(Secondary Electron Emission, SEE)的TOF×E空间中高能离子探测器(下简称中高能TO... 详细信息

对空间中能量介于几十keV到几MeV的离子进行成分、能谱、通量和角分布等信息的测量,具有十分重要的科研和应用价值.20世纪80年代,一种基于二次电子发射(Secondary Electron Emission, SEE)的TOF×E空间中高能离子探测器(下简称中高能TOF质谱仪)问世,直到今天,仍然被广泛应用于各类空间任务.本文将重点介绍中高能TOF质谱仪的技术原理,发展历史,当前发展现状和未来趋势.另外还对中高能TOF质谱仪的质量分辨率和抗干扰能力两项关键参数的影响因素进行分析,并探讨通过引进石墨烯薄膜和金刚石探测器改善两项性能的可能性.该项技术目前我国仍未掌握,但随着我国多项深空探测项目即将开展,已对该技术提出了科研和应用需求.针对未来不同的空间任务需求,我国对中高能TOF质谱仪的研发应涵盖单方向高精度和多方向多要素两种类型,并研究通过引进石墨烯薄膜和金刚石探测器等新技术,进一步提升其探测性能和空间任务适应性.

关键词：飞行时间法中高能离子磁层探测行星探测太阳探测深空探测

维普期刊数据库博看期刊

Super solar particle event around AD775 was found

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 2014年第22期59卷 2736-2742页

作者： Dazhuang Zhou Chi Wang Binquan zhang shenyi zhang Ping Zhou Yueqiang Sun Jinbao Liang Guangwu Zhu Ji Wu National Space Science Center Chinese Academy of Sciences

A rapid radiocarbon14C increase of 120/00in AD774–775 has been reported in cedar and oak tree *** far,the origin of the14C increase is still uncertain and the possible origin is either supernova or solar particle *** most possible origin of14C increase is strong solar flares and Coronal Mass Ejections(CMEs)with strong particles *** approaches to identify the strong historical solar particle events based on the rapid14C/10Be increase in tree/coral rings and ice cores,long duration strong auroras and geomagnetic storms are *** of the super auroras in AD775 was first found in a Chinese Chronicles Jiutangshu and it supports the views that the rapid14C increase and strong auroras around AD775 are most possibly caused by strong solar storms with intense particles *** was identified that the solar event around AD775 would be the strongest solar particle event in the past 11400 *** discovery is significant for the research on the history of solar activities,space weather and forecast,radiation of solar energetic particles and protection.

关键词：太阳耀斑子事件日冕物质抛射太阳高能粒子粒子辐射太阳风暴 14C 放射性碳

OPC-GBFS-NS体系土体硬化剂固化土壤的作用效果研究

在线全文

学校读者我要写书评

暂无评论

建筑材料学报 2022年第1期25卷 61-67页

作者：张国防王博张海旭张沈裔康明同济大学先进土木工程材料教育部重点实验室上海201804 同济大学材料科学与工程学院上海201804 上海宝钢新型建材科技有限公司上海200942

研究了以普通硅酸盐水泥(OPC)-矿渣微粉(GBFS)-硫酸钠(NS)体系制备的土体硬化剂对普通地表土壤和海滩淤泥这2种土壤的固化效果及其固化机理.研究表明,OPC-GBFS-NS土体硬化剂对2种土壤均具有良好的固化效果,使得固化土具有较高的无侧限... 详细信息

研究了以普通硅酸盐水泥(OPC)-矿渣微粉(GBFS)-硫酸钠(NS)体系制备的土体硬化剂对普通地表土壤和海滩淤泥这2种土壤的固化效果及其固化机理.研究表明,OPC-GBFS-NS土体硬化剂对2种土壤均具有良好的固化效果,使得固化土具有较高的无侧限抗压强度,对土壤中重金属离子Cd^(2+)也有较好的固结作用,能显著降低Cd2+的溶出.该土体硬化剂对土壤的固化效果主要源于其在土壤中能快速水化生成大量细长的水化产物钙矾石,并对土壤颗粒起到较紧密的胶结作用.

关键词：土体硬化剂土壤固化无侧限抗压强度重金属离子固结机理