Published July 1, 1999 | Version v1
Report Restricted

Modification of the Current Profile in DIII-D by Off-Axis Electron Cyclotron Current Drive

Creators

Description

Localized non-inductive currents due to electron cyclotron wave absorption have been measured on the DIII-D tokamak. Clear evidence of the non-inductive currents is seen on the internal magnetic field measurements by motional Stark effect spectroscopy. The magnitude and location of the non-inductive current is evaluated by comparing the total and Ohmic current profiles of discharges with and without electron cyclotron wave power. The measured current agrees with Fokker-Planck calculations near the magnetic axis, but exceeds the predicted value as the location of the current drive is moved to the half radius

Availability note (English)

Available from INIS in electronic form; Also available from OSTI as DE00767040; PURL: https://www.osti.gov/servlets/purl/767040-sBCaHP/webviewable/

Files

Restricted

The record is publicly accessible, but files are restricted to users with access.

Additional details

Identifiers

URL
https://www.osti.gov/servlets/purl/767040-sBCaHP/webviewable/;

Publishing Information

Imprint Pagination
13 p.
Report number
GA-A--23167

Conference

Title
26. European Physical Society Conference on Controlled Fusion and Plasma Physics
Dates
14-18 Jun 1999
Place
Maastricht (Netherlands)

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
33001683
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
DOUBLET-3 DEVICE; FOKKER-PLANCK EQUATION; MAGNETIC FIELDS; MODIFICATIONS; NON-INDUCTIVE CURRENT DRIVE; STARK EFFECT
Descriptors DEC
CLOSED PLASMA DEVICES; DIFFERENTIAL EQUATIONS; EQUATIONS; PARTIAL DIFFERENTIAL EQUATIONS; THERMONUCLEAR DEVICES; TOKAMAK DEVICES

Optional Information

Contract/Grant/Project number
AC03-99ER54463; W-7405-ENG-48
Funding organization
US Department of Energy (United States)