Published August 2002
| Version v1
Journal article
Enhanced plasma performance by ICRF boronization
Creators
- 1. Chinese Academy of Sciences, Hefei (China). Inst. of Plasma Physics
Description
Boronization with carborane (C2B10H12) by ICRF has been applied routinely to the walls of HT-7 super-conducting tokamak for the reduction of impurity influx, especially carbon and oxygen. Significant suppression of metallic impurities and radiating power fraction are achieved. The improved confinement for both particle and energy is observed in full range of operation parameters. Energy balance analysis shows that electron heat diffusion coefficient is strongly reduced. Measurements by Langmuir probes at the edge plasma show that the poloidal velocity shear after boronization is changed to a profile favoring to good confinement. The main emphasis is to describe effects of boronization on aspects of the enhanced plasma performance
Additional details
Publishing Information
- Journal Title
- Plasma Science and Technology
- Journal Volume
- 4
- Journal Issue
- 4
- Journal Page Range
- p. 1375-1382
- ISSN
- 1009-0630
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 34035774
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- BORON; CARBORANES; DIFFUSION COATING; FREQUENCY RANGE; HT-7 TOKAMAK; ION CYCLOTRON-RESONANCE; PLASMA CONFINEMENT; PLASMA IMPURITIES; SHEAR; THERMAL DIFFUSIVITY; THERMONUCLEAR REACTOR WALLS
- Descriptors DEC
- CARBON COMPOUNDS; CLOSED PLASMA DEVICES; CONFINEMENT; CYCLOTRON RESONANCE; DEPOSITION; ELEMENTS; IMPURITIES; ORGANIC BORON COMPOUNDS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; RESONANCE; SEMIMETALS; SURFACE COATING; THERMODYNAMIC PROPERTIES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES