Published July 8, 1991
| Version v1
Journal article
Confinement degradation and enhanced microturbulence as long-time precursors to high-density-limit tokamak disruptions
Creators
- 1. Fusion Research Center, The University of Texas at Austin, Austin, Texas 78712
- 2. Department of Electrical Engineering and Institute of Plasma and Fusion Research, University of California, Los Angeles, California 90024 (USA)
Description
Long-time precursors of order 5 times the global energy confinement time are observed for disrupting plasmas at the high-density limit on the Texas Experimental Tokamak. These precursors, occurring well in advance of any change in the plasma MHD activity, are reflected in the electron particle and heat transport along with the density fluctuation level. Enhanced microturbulence is proposed as the physical mechanism for the confinement degradation and subsequent disruption
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 67
- Journal Issue
- 2
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 200-203
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22067532
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- CONFINEMENT TIME; FLUCTUATIONS; HEAT TRANSFER; PLASMA DENSITY; PLASMA DISRUPTION; TEARING INSTABILITY; TEXT DEVICES; TURBULENCE
- Descriptors DEC
- CLOSED PLASMA DEVICES; ENERGY TRANSFER; INSTABILITY; PLASMA INSTABILITY; PLASMA MACROINSTABILITIES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES; VARIATIONS