Gyroresonance Between Electromagnetic Ion Cyclotron Waves and Particles   in a Multi-ion Plasma

CORC > 北京大学 > 地球与空间科学学院

	Gyroresonance Between Electromagnetic Ion Cyclotron Waves and Particles in a Multi-ion Plasma
	He Huiyong ; Chen Liangxu ; Tian Tian ; He Yihua ; Li Yajie ; Nie Liuying
刊名	plasma science technology
	2009
关键词	wave-particle interaction ring current decay EMIC waves multi-ion plasma R-X MODE MAGNETOSPHERIC ELECTRONS ACCELERATION INSTABILITY ANISOTROPY RADIATION DENSITY
英文摘要	The gyroresonant interaction between electromagnetic ion cyclotron (EMIC) waves and energetic particles was studied in a multi-ion (H(+) He(+), and O(+)) plasma. The minimum resonant energy E(min), resonant wave frequency omega, and pitch angle diffusion coefficient D(alpha alpha) were calculated at the center location of the symmetrical ring current: r approximate to 3.5R(E) with R(E) the Earth's radius. E(min) is found to decrease rapidly from 10 MeV to a few keV with the increase in omega in three bands: H(+)-band, He(+)-band and O(+)-band. Moreover, EMIC waves have substantial potential to scatter energetic (similar to 100 keV) ions (mainly W and lfe-) into the loss cone and yield precipitation loss, suggesting that wave-particle interactions contribute to ring current decay.; Physics, Fluids & Plasmas; SCI(E); EI; 中国科学引文数据库(CSCD); 2; ARTICLE; 5; 539-543; 11
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/396525]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	He Huiyong,Chen Liangxu,Tian Tian,et al. Gyroresonance Between Electromagnetic Ion Cyclotron Waves and Particles in a Multi-ion Plasma[J]. plasma science technology,2009.
APA	He Huiyong,Chen Liangxu,Tian Tian,He Yihua,Li Yajie,&Nie Liuying.(2009).Gyroresonance Between Electromagnetic Ion Cyclotron Waves and Particles in a Multi-ion Plasma.plasma science technology.
MLA	He Huiyong,et al."Gyroresonance Between Electromagnetic Ion Cyclotron Waves and Particles in a Multi-ion Plasma".plasma science technology (2009).