DETECTION OF ION-PLASMA WAVES BY COLLECTIVE THOMSON SCATTERING

被引：19
|
作者：
BAUER, BS
DRAKE, RP
ESTABROOK, KG
WATT, RG
WILKE, MD
BAKER, SA
机构：
[1] LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87545 USA
[2] EG&G ENERGY MEASUREMENTS INC, LOS ALAMOS OPERAT, LOS ALAMOS, NM 87544 USA
来源：
PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 18期
关键词：
D O I：
10.1103/PhysRevLett.74.3604
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The first unambiguous experimental detection of ion plasma waves is reported. These short-wavelength (kDe>1), purely electrostatic ion waves were first predicted by Tonks and Langmuir in 1929. The waves are observed in a long-scalelength (L>104/k), multiply ionized (Z=22), laser-produced plasma. The frequency (), wave number (k), and amplitude evolution of the ion waves are measured by time-resolved spectroscopy of the scattering from the ion waves of a probe laser beam. The wave frequency is approximately the ion plasma frequency (pi) when kDe exceeds 1, as predicted by the theoretical dispersion relation. © 1995 The American Physical Society.
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收藏
页码：3604 / 3607
页数：4
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