Effect of poloidal electric fields on impurity asymmetries and transport in tokamaks

Technical Report · Thu May 01 00:00:00 EDT 1986

OSTI ID:5727573

Stacey, Jr, W M

A theory is developed for calculating poloidal asymmetries in impurity density and effects on radial impurity transport resulting from order epsilon = r/R poloidal electric fields that can be produced in tokamaks by ECRH, ICRH and perpendicular NBI. Such effects are estimated to be significant in present experiments. ECRH is found to produce an outward contribution to the impurity transport flux which could inhibit, possibly even reverse, the normal inward flow of impurities that is driven by neoclassical effects.

• Research Organization: Georgia Inst. of Tech., Atlanta (USA). Fusion Research Center
• DOE Contract Number: AS05-78ET52025
• OSTI ID: 5727573
• Report Number(s): GTFR-63; ON: DE86011865
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
IMPURITIES
TRANSPORT THEORY
TOKAMAK DEVICES
ECR HEATING
ELECTRIC FIELDS
NEOCLASSICAL TRANSPORT THEORY
CLOSED PLASMA DEVICES
HEATING
HIGH-FREQUENCY HEATING
PLASMA HEATING
THERMONUCLEAR DEVICES
700105* - Fusion Energy- Plasma Research- Plasma Kinetics-Theoretical- (-1987)