You need JavaScript to view this

Ohm`s law and value of beta in Tokamaks with non-inductive current drive

Abstract

The profile constraint resulting from Ohm`s law is used to derive a relationship between the normalized energy content (poloidal or toroidal beta) and the normalized current (l/q) for tokamak discharges. Previous work on this subject, within the framework of the extended neoclassical theory, is extended to include the effect of non-inductive current drive. It is found that the latter, in addition to the plasma refuelling, has a significant influence on the plasma thermal content, although the energy balance is not considered. Agreement is found with available neutral beam injection experiments. The suggestion made previously, that energy confinement may depend more on momentum balance rather than on thermal transport, is given further support.
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
ETDE-IT-93-45
Reference Number:
SCA: 700350; 700310; PA: ITAN-93:000130; SN: 93000947375
Resource Relation:
Other Information: PBD: 1992
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; NEUTRAL ATOM BEAM INJECTION; FEASIBILITY STUDIES; NON-INDUCTIVE CURRENT DRIVE; BETA RATIO; TOKAMAK DEVICES; OHM LAW; CURRENT DENSITY; PLASMA CONFINEMENT; NEOCLASSICAL TRANSPORT THEORY; ENERGY BALANCE; 700350; 700310; PLASMA PRODUCTION, HEATING, CURRENT DRIVE, AND INTERACTIONS
OSTI ID:
10128727
Research Organizations:
ENEA, Frascati (Italy). Centro Ricerche Energia
Country of Origin:
Italy
Language:
English
Other Identifying Numbers:
Other: ON: DE93769389; TRN: 93:000130
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
ITAN
Size:
23 p.
Announcement Date:
Jul 04, 2005

Citation Formats

Segre, S E, and Zanza, V. Ohm`s law and value of beta in Tokamaks with non-inductive current drive. Italy: N. p., 1992. Web.
Segre, S E, & Zanza, V. Ohm`s law and value of beta in Tokamaks with non-inductive current drive. Italy.
Segre, S E, and Zanza, V. 1992. "Ohm`s law and value of beta in Tokamaks with non-inductive current drive." Italy.
@misc{etde_10128727,
title = {Ohm`s law and value of beta in Tokamaks with non-inductive current drive}
author = {Segre, S E, and Zanza, V}
abstractNote = {The profile constraint resulting from Ohm`s law is used to derive a relationship between the normalized energy content (poloidal or toroidal beta) and the normalized current (l/q) for tokamak discharges. Previous work on this subject, within the framework of the extended neoclassical theory, is extended to include the effect of non-inductive current drive. It is found that the latter, in addition to the plasma refuelling, has a significant influence on the plasma thermal content, although the energy balance is not considered. Agreement is found with available neutral beam injection experiments. The suggestion made previously, that energy confinement may depend more on momentum balance rather than on thermal transport, is given further support.}
place = {Italy}
year = {1992}
month = {Dec}
}