Fast current ramp experiments on TFTR
Electron heat transport on TFTR and other tokamaks is several orders of magnitude larger than neoclassical calculations would predict. Despite considerable effort, there is still no clear theoretical understanding of this anomalous transport. The electron temperature profile T/sub e/(r), shape has shown a marked consistency on many machines, including TFTR, for a wide range of plasma parameters and heating profiles. This could be an important clue as to the process responsible for this enhanced thermal transport. In this paper 'profile consistency' in TFTR is described and an experiment which uses a fast current ramp to transiently decouple the current density profile J(r), and the T/sub e/(r) profiles is discussed. From this experiment the influence of J(r) on electron temperature profile consistency can be determined.
- Research Organization:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 6158948
- Report Number(s):
- PPPL-2437; ON: DE87013207; TRN: 87-031606
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
Similar Records
Transport simulations of ohmic TFTR experiments with profile-consistent microinstability-based models for chi/sub e/ and chi/sub i/. [BALDUR]
Data analysis on TFTR using the SNAP transport code
Related Subjects
TFTR TOKAMAK
HEAT TRANSFER
PLASMA HEATING
CURRENT DENSITY
ELECTRON TEMPERATURE
ELECTRONS
EXPERIMENTAL DATA
MAGNETOHYDRODYNAMICS
TEARING INSTABILITY
TRANSPORT THEORY
DATA
ELEMENTARY PARTICLES
ENERGY TRANSFER
FERMIONS
FLUID MECHANICS
HEATING
HYDRODYNAMICS
INFORMATION
INSTABILITY
LEPTONS
MECHANICS
NUMERICAL DATA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production
700102 - Fusion Energy- Plasma Research- Diagnostics