Qualification of joints for the inner module of the ITER CS model coil

Author

Michael, P.C. ; Chen-Yu Gung ; Jayakumar, R. ; Minervini, J.V. ; Marzovetsky, N.N.

Author_Institution

Plasma Sci. & Fusion Center, MIT, Cambridge, MA, USA

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

201

Lastpage

204

Abstract

The US-ITER home team has constructed a prototype, low-loss, low-resistance lap joint sample using materials, fabrication techniques, machine tooling and quality assurance procedures identical to those for the layer-to-layer joints in the inner module of the ITER Central Solenoid Model Coil. The joint sample was tested at the MIT Pulse Test Facility to 50 kA current, in both parallel and transverse time-varying fields at ramp rates from 0.05 to and background induction to 4T, to qualify performance to ITER-relevant operating conditions. The joint shows DC below 2.5 nOhm and pulsed, transverse field losses for a 1.5 ramp at 0.4 T/s below 90 J; both values are well within target limits for the ITER-CS joints.

Keywords

accelerator magnets; cable jointing; power cable testing; superconducting cables; superconducting coils; superconducting magnets; test facilities; 2.5 nohm; 4 T; 50 kA; 90 J; ITER Central Solenoid Model Coil; fabrication techniques; machine tooling; quality assurance; superconducting accelerator magnets; superconducting cable joints qualification; Coils; Conductors; Electronic design automation and methodology; Prototypes; Qualifications; Solenoids; Steel; Test facilities; Testing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.783271

Filename

783271