Cyclotron mode frequency shifts in multi-species ion plasmas

被引：5

作者：

Affolter, M. ^{[1
]}

Anderegg, F. ^{[1
]}

Dubin, D. H. E. ^{[1
]}

Driscoll, C. F. ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

来源：

PHYSICS LETTERS A | 2014年 / 378卷 / 32-33期

基金：

美国国家科学基金会;

关键词：

Plasma; Nonneutral; Cyclotron mode; Mass spectrometry; Space charge; Centrifugal separation; RESONANCE MASS-SPECTROMETRY; NONNEUTRAL PLASMA; CHARGE;

D O I：

10.1016/j.physleta.2014.06.015

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In trapped plasmas, electric fields and collective effects shift the cyclotron mode frequencies away from the "bare" cyclotron frequency for each species s. Here, these shifts are measured on a set of cyclotron modes (m = 0, 1, and 2) with cos(m theta) azimuthal dependence in near rigid-rotor multi-species ion plasmas. We observe that these frequency shifts are dependent on the plasma density, through the E x B rotation frequency f(E), and on the "local" charge concentration delta(s) of species s, in close agreement with theory. (C) 2014 Elsevier E.V. All rights reserved.

引用

页码：2406 / 2409

页数：4

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