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Title: Ion dynamics in an E × B Hall plasma accelerator

Abstract

We show the time evolution of the ion velocity distribution function in a Hall plasma accelerator during a 20 kHz natural, quasi-periodic plasma oscillation. We apply a time-synchronized laser induced fluorescence technique at different locations along the channel midline, obtaining time- and spatially resolved ion velocity measurements. Strong velocity and density fluctuations and multiple ion populations are observed throughout the so-called “breathing mode” ionization instability, opening an experimental window into the detailed ion dynamics and physical processes at the heart of such devices.

Authors:
; ;  [1]
  1. Stanford Plasma Physics Laboratory, 452 Escondido Mall, Bldg. 520-257, Stanford, California 94305 (United States)
Publication Date:
OSTI Identifier:
22415216
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DISTRIBUTION FUNCTIONS; FLUORESCENCE; HALL EFFECT; IONS; LASERS; PLASMA ACCELERATION; PLASMA GUNS; PLASMA WAVES

Citation Formats

Young, Christopher V., E-mail: cvyoung@stanford.edu, Lucca Fabris, Andrea, and Cappelli, Mark A. Ion dynamics in an E × B Hall plasma accelerator. United States: N. p., 2015. Web. doi:10.1063/1.4907283.
Young, Christopher V., E-mail: cvyoung@stanford.edu, Lucca Fabris, Andrea, & Cappelli, Mark A. Ion dynamics in an E × B Hall plasma accelerator. United States. doi:10.1063/1.4907283.
Young, Christopher V., E-mail: cvyoung@stanford.edu, Lucca Fabris, Andrea, and Cappelli, Mark A. Mon . "Ion dynamics in an E × B Hall plasma accelerator". United States. doi:10.1063/1.4907283.
@article{osti_22415216,
title = {Ion dynamics in an E × B Hall plasma accelerator},
author = {Young, Christopher V., E-mail: cvyoung@stanford.edu and Lucca Fabris, Andrea and Cappelli, Mark A.},
abstractNote = {We show the time evolution of the ion velocity distribution function in a Hall plasma accelerator during a 20 kHz natural, quasi-periodic plasma oscillation. We apply a time-synchronized laser induced fluorescence technique at different locations along the channel midline, obtaining time- and spatially resolved ion velocity measurements. Strong velocity and density fluctuations and multiple ion populations are observed throughout the so-called “breathing mode” ionization instability, opening an experimental window into the detailed ion dynamics and physical processes at the heart of such devices.},
doi = {10.1063/1.4907283},
journal = {Applied Physics Letters},
number = 4,
volume = 106,
place = {United States},
year = {Mon Jan 26 00:00:00 EST 2015},
month = {Mon Jan 26 00:00:00 EST 2015}
}