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

Title: ITER equilibrium with bootstrap currents, lower hybrid current drive and fast wave current drive

Abstract

A current drive system is proposed for the technology phase of ITER which relies on rf power and bootstrap currents. The rf/bootstrap system permits operation at high safety factor, and we consider the axial value to be q/sub a/ approx. = 1.9, which minimizes the need for seed current near the magnetic axis. Lower hybrid power (/approximately/30 MW) provides current density near the surface, ICRF (/approximately/65 MHz, /approximately/30 MW) fast waves generate current near the axis, and high frequency fast waves (/approximately/250 MHz, /approximately/74 MW) supply the remaining current density. The system is not yet optimized but appears to offer great flexibility (ion heating for ignition, current rampup, etc.) with relatively inexpensive and well developed technology. 29 refs., 16 figs., 1 tab.

Authors:
Publication Date:
Research Org.:
Argonne National Lab., IL (USA)
OSTI Identifier:
6313660
Report Number(s):
ANL/FPP/TM-238
ON: DE89009676; TRN: 89-011007
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; TOKAMAK TYPE REACTORS; CURRENT-DRIVE HEATING; CURRENT DENSITY; ICR HEATING; LOWER HYBRID HEATING; MHD EQUILIBRIUM; RF SYSTEMS; ELECTRIC HEATING; EQUILIBRIUM; HEATING; HIGH-FREQUENCY HEATING; JOULE HEATING; PLASMA HEATING; RESISTANCE HEATING; THERMONUCLEAR REACTORS; 700101* - Fusion Energy- Plasma Research- Confinement, Heating, & Production

Citation Formats

Ehst, D A. ITER equilibrium with bootstrap currents, lower hybrid current drive and fast wave current drive. United States: N. p., 1989. Web. doi:10.2172/6313660.
Ehst, D A. ITER equilibrium with bootstrap currents, lower hybrid current drive and fast wave current drive. United States. doi:10.2172/6313660.
Ehst, D A. Wed . "ITER equilibrium with bootstrap currents, lower hybrid current drive and fast wave current drive". United States. doi:10.2172/6313660. https://www.osti.gov/servlets/purl/6313660.
@article{osti_6313660,
title = {ITER equilibrium with bootstrap currents, lower hybrid current drive and fast wave current drive},
author = {Ehst, D A},
abstractNote = {A current drive system is proposed for the technology phase of ITER which relies on rf power and bootstrap currents. The rf/bootstrap system permits operation at high safety factor, and we consider the axial value to be q/sub a/ approx. = 1.9, which minimizes the need for seed current near the magnetic axis. Lower hybrid power (/approximately/30 MW) provides current density near the surface, ICRF (/approximately/65 MHz, /approximately/30 MW) fast waves generate current near the axis, and high frequency fast waves (/approximately/250 MHz, /approximately/74 MW) supply the remaining current density. The system is not yet optimized but appears to offer great flexibility (ion heating for ignition, current rampup, etc.) with relatively inexpensive and well developed technology. 29 refs., 16 figs., 1 tab.},
doi = {10.2172/6313660},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {3}
}