Unstable ion cyclotron harmonic waves generated by inhomogeneity and the ion beam in an ion-beam-plasma system

被引：4

作者：

Utsunomiya, S ^{[1
]}

Iwamoto, S ^{[1
]}

Kondo, T ^{[1
]}

Sugawa, M ^{[1
]}

Maehara, T ^{[1
]}

Sugaya, R ^{[1
]}

机构：

[1] Ehime Univ, Fac Sci, Dept Phys, Matsuyama, Ehime 7908577, Japan

来源：

JOURNAL OF PLASMA PHYSICS | 2001年 / 66卷

关键词：

D O I：

10.1017/S0022377801001209

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

In an ion-beam-inhomogeneous-plasma system, when the drift. frequency omega* exceeds a harmonic of the ion cyclotron frequency nomega(ci), ion cyclotron harmonic waves are excited via the plasma inhomogeneity. These waves are strongly enhanced by ion-beam injection parallel to the magnetic field. As the plasma inhomogeneity is increased, the number of unstable modes increases as does their amplitude. Ion cyclotron harmonic waves with frequencies up to 4omega(ci) are observed experimentally; at least five modes become unstable, and these unstable waves have different, azimuthal mode. numbers l = 1 or 2. The dispersion relations of observed multiple ion cyclotron harmonic waves agree well with the theoretical ones, taking into account. the plasma inhomogeneity and the ion beam.

引用

页码：27 / 37

页数：11

共 50 条

[31] NON-LINEAR AMPLITUDE OSCILLATIONS OF ABSOLUTELY UNSTABLE ELECTROSTATIC ION-CYCLOTRON WAVES IN AN ION BEAM-PLASMA SYSTEM [J].

SUGAWA, M ;

SUGAYA, R .

PHYSICS LETTERS A, 1980, 79 (01) :74-76

[32] EXCITATION OF WAVES WITH HALF ION CYCLOTRON FREQUENCY IN A SYSTEM WITH A REFLECTED ION BEAM [J].

BORER, A .

CZECHOSLOVAK JOURNAL OF PHYSICS, 1968, 18 (05) :691-&

[33] BEHAVIORS OF ABSOLUTE INSTABILITIES OF ELECTROSTATIC ION-CYCLOTRON WAVES IN AN ION BEAM-PLASMA SYSTEM [J].

SUGAWA, M ;

SUGAYA, R ;

NOMOTO, H .

PHYSICS LETTERS A, 1977, 63 (03) :321-323

[34] ABSOLUTE AND CONVECTIVE INSTABILITIES OF ELECTROSTATIC ION-CYCLOTRON WAVES IN AN ION BEAM-PLASMA SYSTEM [J].

SUGAWA, M ;

SUGAYA, R ;

NOMOTO, H .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1980, 48 (03) :983-992

[35] NUMERICAL STUDY OF MANY ELECTROSTATIC ION-CYCLOTRON WAVES INTERACTING WITH BEAM IONS IN AN ION-BEAM PLASMA SYSTEM [J].

SUGAWA, M .

PLASMA PHYSICS AND CONTROLLED FUSION, 1988, 30 (03) :235-247

[36] Excitation of electrostatic ion-cyclotron waves by an ion beam in a two-ion component plasma [J].

Sharma, Jyotsna ;

Sharma, Suresh C. .

PHYSICS OF PLASMAS, 2010, 17 (12)

[37] Excitation of ion cyclotron waves by a spiraling ion beam in a magnetized dusty plasma cylinder [J].

Sharma, Suresh C. ;

Sharma, Jyotsna .

PHYSICS OF PLASMAS, 2010, 17 (04)

[38] ION-BEAM DRIVEN ION-CYCLOTRON WAVES [J].

HAUCK, JP ;

BOHMER, H ;

RYNN, N ;

STERN, RA .

BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1975, 20 (10) :1340-1340

[39] Ion beam driven ion-cyclotron waves in a plasma cylinder with negative ions [J].

Sharma, SC ;

Srivastava, MP .

PHYSICS OF PLASMAS, 2001, 8 (03) :679-686

[40] EXCITATION OF ION-CYCLOTRON WAVES BY A SPIRALING ION-BEAM IN A PLASMA CYLINDER [J].

SHARMA, SC ;

TRIPATHI, VK .

JOURNAL OF PLASMA PHYSICS, 1993, 50 :331-338

← 1 2 3 4 5 →