Preinstallation testing of TFTR long pulse ion sources correlated with reliability

Author

Wright, Kenneth E.

Author_Institution

Plasma Phys. Lab., Princeton Univ., NJ, USA

fYear

1989

fDate

2-6 Oct 1989

Firstpage

412

Abstract

The operational performance of the long-pulse ion sources (LPISs) installed and operated on the Tokamak Fusion Test Reactor (TFTR) neutral beam injection system has been compared with preinstallation test data. A direct correlation between unsatisfactory performance and/or failure and preinstallation test results can be made. Upon disassembly of the LPISs, causes for the failure were found. Improved cleaning processes and inspection procedures have been implemented. More stringent testing during the assembly phase and stricter acceptance criteria for preinstallation tests have helped avoid failures. The more stringent procedures are discussed, preinstallation test data is presented, and operational reliability is described

Keywords

Tokamak devices; fusion reactor instrumentation; ion sources; TFTR long pulse ion sources; Tokamak Fusion Test Reactor; assembly phase; cleaning processes; failure; inspection; neutral beam injection system; operational reliability; preinstallation test data; Apertures; Assembly; Ion sources; Magnetic confinement; Particle beam injection; Particle beams; Plasma accelerators; Plasma confinement; Plasma sources; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1989. Proceedings., IEEE Thirteenth Symposium on

Conference_Location

Knoxville, TN

Type

conf

DOI

10.1109/FUSION.1989.102252

Filename

102252