Design of an electrostatic end-plugged plasma-confinement device
Abstract
A laboratory-scale experimental device having an outside diameter of 1.2 m has been designed to test the idea of electrostatic end plugging of an open-ended magnetic-field configuration. The configuration is a toroidal quadrupole having four very thin (less than 1-mm-thick) line cusps produced by four circular copper coils. Iron is used to concentrate the magnetic flux density to 2.0 T; without the use of iron, the power consumption, which is about 1 MW, would be about 25 times higher. The use of iron also produces a precisely known magnetic field and allows good access for diagnostics and pumping. Iron is also used for both the flux return path and the vacuum chamber. A hollow anode with an adjustable (nominally 1-mm-wide) gap is biased from 10 to 20 kV. Plasma densities of about 10/sup 13/ cm/sup -3/ and temperatures of about 1 keV might be produced by an electron beam and by electron cyclotron resonance heating. Higher-order multipoles (hexapoles and octopoles) also are described.
- Authors:
- Publication Date:
- Research Org.:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- OSTI Identifier:
- 5279894
- Report Number(s):
- UCRL-79880; CONF-771029-49
TRN: 78-002474
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Conference
- Resource Relation:
- Conference: 7. symposium on fusion research project, Knoxville, TN, USA, 25 Oct 1977
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; MAGNETIC MIRROR TYPE REACTORS; MULTIPOLAR CONFIGURATIONS; PLASMA CONFINEMENT; DESIGN; ELECTRIC FIELDS; ENERGY LOSSES; MAGNETIC FIELD CONFIGURATIONS; CLOSED CONFIGURATIONS; CONFINEMENT; THERMONUCLEAR REACTORS; 700101* - Fusion Energy- Plasma Research- Confinement, Heating, & Production
Citation Formats
Moir, R W, Dolan, T J, and Barr, W L. Design of an electrostatic end-plugged plasma-confinement device. United States: N. p., 1977.
Web.
Moir, R W, Dolan, T J, & Barr, W L. Design of an electrostatic end-plugged plasma-confinement device. United States.
Moir, R W, Dolan, T J, and Barr, W L. 1977.
"Design of an electrostatic end-plugged plasma-confinement device". United States. https://www.osti.gov/servlets/purl/5279894.
@article{osti_5279894,
title = {Design of an electrostatic end-plugged plasma-confinement device},
author = {Moir, R W and Dolan, T J and Barr, W L},
abstractNote = {A laboratory-scale experimental device having an outside diameter of 1.2 m has been designed to test the idea of electrostatic end plugging of an open-ended magnetic-field configuration. The configuration is a toroidal quadrupole having four very thin (less than 1-mm-thick) line cusps produced by four circular copper coils. Iron is used to concentrate the magnetic flux density to 2.0 T; without the use of iron, the power consumption, which is about 1 MW, would be about 25 times higher. The use of iron also produces a precisely known magnetic field and allows good access for diagnostics and pumping. Iron is also used for both the flux return path and the vacuum chamber. A hollow anode with an adjustable (nominally 1-mm-wide) gap is biased from 10 to 20 kV. Plasma densities of about 10/sup 13/ cm/sup -3/ and temperatures of about 1 keV might be produced by an electron beam and by electron cyclotron resonance heating. Higher-order multipoles (hexapoles and octopoles) also are described.},
doi = {},
url = {https://www.osti.gov/biblio/5279894},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 27 00:00:00 EDT 1977},
month = {Tue Sep 27 00:00:00 EDT 1977}
}