A BORONIZATION SYSTEM IN THE JT-60U TOKAMAK - APPLICATION OF A NEW METHOD USING A LESS HAZARDOUS SUBSTANCE

Authors
SAIDOH M HIRATSUKA H ARAI T NEYATANI Y SHIMADA M KOIKE T
Citation
M. Saidoh et al., A BORONIZATION SYSTEM IN THE JT-60U TOKAMAK - APPLICATION OF A NEW METHOD USING A LESS HAZARDOUS SUBSTANCE, Fusion engineering and design, 22(3), 1993, pp. 271-275
Citations number
19
Categorie Soggetti
Nuclear Sciences & Tecnology
Journal title
Fusion engineering and design → ACNP
ISSN journal
09203796
Volume
22
Issue
3
Year of publication
1993
Pages
271 - 275
Database
ISI
SICI code
0920-3796(1993)22:3<271:ABSITJ>2.0.ZU;2-S
Abstract
A new type of boronization system has been installed in the JT-60U tok amak. Decaborane B10H14, a material less hazardous than diborane B2H6 for boronization, has been used to deposit a pure boron film on the fi rst wall. The purpose of the boron film is to reduce the levels of imp urity contamination in the JT-60U plasmas. The first results indicate that the film produced from decaborane shows a good performance simila r to that of layers produced in the conventional way. The new techniqu e thus offers an easier and more convenient way for boronization of th e tokamak first wall.