Published July 25, 2003
| Version v1
Journal article
Observation of velocity-independent electron transport in the reversed field pinch
Creators
- 1. CompX, San Diego, California (United States)
- 2. Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)
Description
Confinement of runaway electrons has been observed for the first time in a reversed field pinch during improved-confinement plasmas in the Madison Symmetric Torus. Energy-resolved hard-x-ray flux measurements have been used to determine the velocity dependence of the electron diffusion coefficient, utilizing computational solutions of the Fokker-Planck transport equation. With improved-confinement, the fast electron diffusivity drops by 2 orders of magnitude and is independent of velocity. This suggests a change in the transport mechanism away from stochastic magnetic field diffusion
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 91
- Journal Issue
- 4
- Journal Page Range
- p. 045002-045002.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35048198
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- CHARGED-PARTICLE TRANSPORT; DIFFUSION; FOKKER-PLANCK EQUATION; PLASMA; PLASMA CONFINEMENT; PLASMA DIAGNOSTICS; REVERSED-FIELD PINCH DEVICES; STOCHASTIC PROCESSES
- Descriptors DEC
- CLOSED PLASMA DEVICES; CONFINEMENT; DIFFERENTIAL EQUATIONS; EQUATIONS; PARTIAL DIFFERENTIAL EQUATIONS; PINCH DEVICES; RADIATION TRANSPORT; THERMONUCLEAR DEVICES; TOROIDAL PINCH DEVICES
Optional Information
- Notes
- (c) 2003 The American Physical Society