Published December 2003
| Version v1
Journal article
Effects of boronization in LHD
- 1. National Inst. for Fusion Science, Toki, Gifu (Japan)
Description
Boronization (boron coating) using diborane was carried out in the Large Helical Device (LHD) for wall conditioning. Using three nozzles for the diborane supply, about 60% area of the vacuum chamber was covered by boron film. Oxygen impurity radiation was strongly reduced by gettering, and radiation from carbon and metals were reduced about 30-40% by coverage with boron film. As a result, radiation loss was reduced and the operational density exceeded 1x1020 cm-3, which is about twice of that before boronization. (author)
Additional details
Publishing Information
- Journal Title
- Purazuma, Kaku Yugo Gakkai-Shi
- Journal Volume
- 79
- Journal Issue
- 12
- Journal Page Range
- p. 1216-1217
- ISSN
- 0918-7928
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 35027207
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- BORANES; BORON; CHEMICAL VAPOR DEPOSITION; FIRST WALL; HELICAL CONFIGURATION; LHD DEVICE; MAGNETIC FIELDS; PARTICLE INFLUX; PLASMA; PLASMA IMPURITIES; PLASMA PRODUCTION; WALL EFFECTS
- Descriptors DEC
- BORON COMPOUNDS; CHEMICAL COATING; CLOSED PLASMA DEVICES; CONFIGURATION; DEPOSITION; ELEMENTS; HYDRIDES; HYDROGEN COMPOUNDS; IMPURITIES; SEMIMETALS; SURFACE COATING; THERMONUCLEAR DEVICES; THERMONUCLEAR REACTOR WALLS
Optional Information
- Notes
- 9 refs., 2 figs.