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Title: Improvement of tokamak performance by injection of electrons

Abstract

Concepts for improving tokamak performance by utilizing injection of hot electrons are discussed. Motivation of this paper is to introduce the research work being performed in this area and to refer the interested readers to the literature for more detail. The electron injection based concepts presented here have been developed in the CDX, CCT, and CDX-U tokamak facilities. The following three promising application areas of electron injection are described here: 1. Non-inductive current drive, 2. Plasma preionization for tokamak start-up assist, and 3. Charging-up of tokamak flux surfaces for improved plasma confinement. The main motivation for the dc-helicity injection current drive is in its efficiency that, in theory, is independent of plasma density. This property makes it attractive for driving currents in high density reactor plasmas.

Authors:
Publication Date:
Research Org.:
Princeton Univ., NJ (United States). Plasma Physics Lab.
Sponsoring Org.:
DOE; USDOE, Washington, DC (United States)
OSTI Identifier:
6886311
Alternate Identifier(s):
OSTI ID: 6886311; Legacy ID: DE93005722
Report Number(s):
PPPL-2869
ON: DE93005722
DOE Contract Number:
AC02-76CH03073
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; TOKAMAK DEVICES; BEAM INJECTION; ELECTRON BEAMS; IONIZATION; MODIFICATIONS; NON-INDUCTIVE CURRENT DRIVE; PERFORMANCE; PLASMA CONFINEMENT; BEAMS; CLOSED PLASMA DEVICES; CONFINEMENT; LEPTON BEAMS; PARTICLE BEAMS; THERMONUCLEAR DEVICES 700310* -- Plasma Confinement-- (1992-)

Citation Formats

Ono, Masayuki. Improvement of tokamak performance by injection of electrons. United States: N. p., 1992. Web. doi:10.2172/6886311.
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Ono, Masayuki. Improvement of tokamak performance by injection of electrons. United States. doi:10.2172/6886311.
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Ono, Masayuki. Tue . "Improvement of tokamak performance by injection of electrons". United States. doi:10.2172/6886311. https://www.osti.gov/servlets/purl/6886311.
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@article{osti_6886311,
title = {Improvement of tokamak performance by injection of electrons},
author = {Ono, Masayuki.},
abstractNote = {Concepts for improving tokamak performance by utilizing injection of hot electrons are discussed. Motivation of this paper is to introduce the research work being performed in this area and to refer the interested readers to the literature for more detail. The electron injection based concepts presented here have been developed in the CDX, CCT, and CDX-U tokamak facilities. The following three promising application areas of electron injection are described here: 1. Non-inductive current drive, 2. Plasma preionization for tokamak start-up assist, and 3. Charging-up of tokamak flux surfaces for improved plasma confinement. The main motivation for the dc-helicity injection current drive is in its efficiency that, in theory, is independent of plasma density. This property makes it attractive for driving currents in high density reactor plasmas.},
doi = {10.2172/6886311},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 01 00:00:00 EST 1992},
month = {Tue Dec 01 00:00:00 EST 1992}
}
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Technical Report:
View Technical Report (1.62 MB)
DOI:  10.2172/6886311
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  • Concepts for improving tokamak performance by utilizing injection of hot electrons are discussed. Motivation of this paper is to introduce the research work being performed in this area and to refer the interested readers to the literature for more detail. The electron injection based concepts presented here have been developed in the CDX, CCT, and CDX-U tokamak facilities. The following three promising application areas of electron injection are described here: 1. Non-inductive current drive, 2. Plasma preionization for tokamak start-up assist, and 3. Charging-up of tokamak flux surfaces for improved plasma confinement. The main motivation for the dc-helicity injection currentmore » drive is in its efficiency that, in theory, is independent of plasma density. This property makes it attractive for driving currents in high density reactor plasmas.« less

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