Design of an electrostatic end-plugged plasma-confinement device
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.
- Research Organization:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5279894
- Report Number(s):
- UCRL-79880; CONF-771029-49; TRN: 78-002474
- Resource Relation:
- Conference: 7. symposium on fusion research project, Knoxville, TN, USA, 25 Oct 1977
- Country of Publication:
- United States
- Language:
- English
Similar Records
Review of electrostatic plugging
QUARTERLY STATUS REPORT OF THE LASL CONTROLLED THERMONUCLEAR RESEARCH PROGRAM FOR PERIOD ENDING AUGUST 20, 1960
Related Subjects
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