skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Operation of Ferroelectric Plasma Sources in a Gas Discharge Mode

Abstract

Ferroelectric plasma sources in vacuum are known as sources of ablative plasma, formed due to surface discharge. In this paper, observations of a gas discharge mode of operation of the ferroelectric plasma sources (FPS) are reported. The gas discharge appears at pressures between approximately 20 and approximately 80 Torr. At pressures of 1-20 Torr, there is a transition from vacuum surface discharge to the gas discharge, when both modes coexist and the surface discharges sustain the gas discharge. At pressures between 20 and 80 Torr, the surface discharges are suppressed, and FPS operate in pure gas discharge mode, with the formation of almost uniform plasma along the entire surface of the ceramics between strips. The density of the expanding plasma is estimated to be about 1013 cm-3 at a distance of 5.5 mm from the surface. The power consumption of the discharge is comparatively low, making it useful for various applications. This paper also presents direct measurements of the yield of secondary electron emission from ferroelectric ceramics, which, at low energies of primary electrons, is high and dependent on the polarization of the ferroelectric material

Authors:
;
Publication Date:
Research Org.:
Princeton Plasma Physics Laboratory, Princeton, NJ; (US)
Sponsoring Org.:
USDOE Office of Science (SC) (US)
OSTI Identifier:
827681
Report Number(s):
PPPL-3929
TRN: US0403668
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 8 Mar 2004
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CERAMICS; ELECTRON EMISSION; ELECTRONS; FERROELECTRIC MATERIALS; PLASMA; POLARIZATION; GAS DISCHARGES; PLASMA-WALL INTERACTION

Citation Formats

Dunaevsky, A, and Fisch, N J. Operation of Ferroelectric Plasma Sources in a Gas Discharge Mode. United States: N. p., 2004. Web. doi:10.2172/827681.
Dunaevsky, A, & Fisch, N J. Operation of Ferroelectric Plasma Sources in a Gas Discharge Mode. United States. doi:10.2172/827681.
Dunaevsky, A, and Fisch, N J. Mon . "Operation of Ferroelectric Plasma Sources in a Gas Discharge Mode". United States. doi:10.2172/827681. https://www.osti.gov/servlets/purl/827681.
@article{osti_827681,
title = {Operation of Ferroelectric Plasma Sources in a Gas Discharge Mode},
author = {Dunaevsky, A and Fisch, N J},
abstractNote = {Ferroelectric plasma sources in vacuum are known as sources of ablative plasma, formed due to surface discharge. In this paper, observations of a gas discharge mode of operation of the ferroelectric plasma sources (FPS) are reported. The gas discharge appears at pressures between approximately 20 and approximately 80 Torr. At pressures of 1-20 Torr, there is a transition from vacuum surface discharge to the gas discharge, when both modes coexist and the surface discharges sustain the gas discharge. At pressures between 20 and 80 Torr, the surface discharges are suppressed, and FPS operate in pure gas discharge mode, with the formation of almost uniform plasma along the entire surface of the ceramics between strips. The density of the expanding plasma is estimated to be about 1013 cm-3 at a distance of 5.5 mm from the surface. The power consumption of the discharge is comparatively low, making it useful for various applications. This paper also presents direct measurements of the yield of secondary electron emission from ferroelectric ceramics, which, at low energies of primary electrons, is high and dependent on the polarization of the ferroelectric material},
doi = {10.2172/827681},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {3}
}