Published April 22, 2011
| Version v1
Journal article
Density Gradient Stabilization of Electron Temperature Gradient Driven Turbulence in a Spherical Tokamak
Creators
- 1. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)
- 2. University of California at Davis, Davis, California 95616 (United States)
- 3. University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)
- 4. Nova Photonics, Inc., Princeton, New Jersey 08540 (United States)
Description
In this Letter we report the first clear experimental observation of density gradient stabilization of electron temperature gradient driven turbulence in a fusion plasma. It is observed that longer wavelength modes, kperpendicularρs < or approx. 10, are most stabilized by density gradient, and the stabilization is accompanied by about a factor of 2 decrease in the plasma effective thermal diffusivity.
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 106
- Journal Issue
- 16
- Journal Page Range
- p. 165005-165005.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- Syrian Arab Republic
- INIS RN
- 43028437
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- DENSITY; ELECTRON TEMPERATURE; PLASMA; STABILIZATION; TEMPERATURE GRADIENTS; THERMAL DIFFUSIVITY; TOKAMAK DEVICES; TURBULENCE; WAVELENGTHS
- Descriptors DEC
- CLOSED PLASMA DEVICES; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; THERMONUCLEAR DEVICES
Optional Information
- Notes
- (c) 2011 American Institute of Physics