Reliability study of the JET neutral injection system

Author

Challis, C.D. ; Bickley, A.J. ; Browne, A. ; de Esch, H.P.L. ; Fogg, M. ; Jones, T.T.C. ; Stork, D. ; Svensson, L.

Author_Institution

JET Joint Undertaking, Abingdon, UK

fYear

1991

fDate

30 Sep-3 Oct 1991

Firstpage

62

Abstract

The JET (Joint European Torus) neutral beam injection (NBI) system, has demonstrated a very high degree of reliability and availability. Data on the reliability and availability of the beamlines and the associated subsystems (e.g. power supplies, cooling and cryogenic supplies, computerized control, etc.) have been recorded over the past three years. These data are used to quantify the overall reliability of the NBI systems and to identify problem areas. The overall reliability (energy injected into JET/energy requested) and availability for the 1990 experimental campaign are both better than 80% and improve significantly during routine operation to nearly 90% after the system has been fully commissioned

Keywords

fusion reactor operation; plasma heating; reliability; JET neutral injection system; Joint European Torus; NBI systems; availability; beamlines; computerized control; cooling; cryogenic supplies; power supplies; reliability; Acceleration; Availability; Control systems; Heating; Plasma accelerators; Power supplies; Power system reliability; Temperature control; Tokamaks; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1991. Proceedings., 14th IEEE/NPSS Symposium on

Conference_Location

San Diego, CA

Print_ISBN

0-7803-0132-3

Type

conf

DOI

10.1109/FUSION.1991.218825

Filename

218825