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外辐射带动态演化的粒子模拟研究
Alternative TitlePARTICLE SIMULATION ON THE DYNAMICAL EVOLUTION OF RADIATION BELT PARTICLES
沈超; 刘振兴; 北京8701信箱
Department空间天气学国家重点实验室
Source Publication空间科学学报
2001
Volume21Issue:3Pages:230-237
ISSN0254-6124
Language中文
Keyword辐射带 动态模式 电磁粒子模拟 地球辐射带 航天术 环境模拟
Abstract运用计算机实验方法即三维电磁粒子模拟方法初步研究了暴时扰动情况下外辐射带粒子环境的动态演化特性.模拟计算了暴时辐射带粒子环境的演化情况.模拟计算结果显示,高能质子、电子注入午辐射滞后,两者一方面沿磁力线做弹跳运动,向高纬扩展,部分注入质子和电子沉降于南北两极区域;另一方面,注入质子和电子还经历顺时针和逆时针方向的漂移运动,粒子能量越大,漂移速度越快.暴时多次注入引起整个辐射带粒子能量的大幅增强;粒子注入颗次和强度越大,辐射带粒子通量增幅越大.本项研究为开发研制完整的辐射带动态模式积累了有益的经验.
Other AbstractIn this research, the spatial and temporal evolution properties of the external radiation belt particles during geomagnetic disturbances have been investigated by using a three dimensional relativistic electromagnetic particle code.The calculation shows that, the injected energetic protons and electrons perform bounce movements along geomagnetic field lines and can expand into the high latitude region.On the other hand, the injected protons and electrons also experience clockwise and anti-clockwise magnetic drift movements,the larger the energy of the particles is, the faster the drift velocity will be.Multiple injections will cause a remarkable increase of the flux of the external radiation belt particles.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1432
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
沈超,刘振兴,北京8701信箱. 外辐射带动态演化的粒子模拟研究[J]. 空间科学学报,2001,21(3):230-237.
APA 沈超,刘振兴,&北京8701信箱.(2001).外辐射带动态演化的粒子模拟研究.空间科学学报,21(3),230-237.
MLA 沈超,et al."外辐射带动态演化的粒子模拟研究".空间科学学报 21.3(2001):230-237.
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