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Heat flow of a two-electron-temperature plasma through the sheath in the presence of electron emission

Technical Report:

Abstract

The electrostatic sheath and the heat flow of a two-electron-temperature plasma in the presence of electron emission is investigated analytically. It is shown that the energy flux is remarkably enhanced up to a value near the electron free-flow energy flux as a result of considerable reduction of the sheath potential due to electron emission if the fraction of hot electrons at the sheath edge is much smaller than one. If the hot- to cold-electron temperature is of the order of ten and the hot electron density is comparable with the cold electron density, the action of the sheath as a thermal insulator is improved as a result of suppression of electron emission due to the space-charge effect of hot electrons. (author).
Authors:
Sato, Kunihiro; Miyawaki, Fujio [1] 
  1. Himeji Inst. of Tech., Hyogo (Japan)
Publication Date:
Mar 01, 1992
Product Type:
Technical Report
Report Number:
NIFS-136
Reference Number:
SCA: 700350; PA: JPN-92:011230; SN: 93000918635
Resource Relation:
Other Information: PBD: Mar 1992
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; PLASMA SHEATH; HEAT FLUX; PLASMA; ANALYTICAL SOLUTION; SPACE CHARGE; ELECTRIC CURRENTS; ELECTRON TEMPERATURE; BOHM CRITERION; PLASMA POTENTIAL; ELECTRON EMISSION; SPATIAL DISTRIBUTION; WALL EFFECTS; 700350; PLASMA PRODUCTION, HEATING, CURRENT DRIVE, AND INTERACTIONS
OSTI ID:
10111280
Research Organizations:
National Inst. for Fusion Science, Nagoya (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE93753309; TRN: JP9211230
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
19 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Sato, Kunihiro, and Miyawaki, Fujio. Heat flow of a two-electron-temperature plasma through the sheath in the presence of electron emission. Japan: N. p., 1992. Web.
Sato, Kunihiro, & Miyawaki, Fujio. Heat flow of a two-electron-temperature plasma through the sheath in the presence of electron emission. Japan.
Sato, Kunihiro, and Miyawaki, Fujio. 1992. "Heat flow of a two-electron-temperature plasma through the sheath in the presence of electron emission." Japan.
@misc{etde_10111280,
title = {Heat flow of a two-electron-temperature plasma through the sheath in the presence of electron emission}
author = {Sato, Kunihiro, and Miyawaki, Fujio}
abstractNote = {The electrostatic sheath and the heat flow of a two-electron-temperature plasma in the presence of electron emission is investigated analytically. It is shown that the energy flux is remarkably enhanced up to a value near the electron free-flow energy flux as a result of considerable reduction of the sheath potential due to electron emission if the fraction of hot electrons at the sheath edge is much smaller than one. If the hot- to cold-electron temperature is of the order of ten and the hot electron density is comparable with the cold electron density, the action of the sheath as a thermal insulator is improved as a result of suppression of electron emission due to the space-charge effect of hot electrons. (author).}
place = {Japan}
year = {1992}
month = {Mar}
}