Title :
Effects of cyclic pulsed operation on the coil performance in the Nb3Sn Demo poloidal coil (DPC-EX)
Author :
Nakajima, Hiromasa ; Sasaki, T. ; Ando, Takehiro ; Nishi, Masahiro ; Oshikiri, M. ; Hiyama, Takashi ; Takahashi, Y. ; Yoshida, Kenta ; Okuno, Kiyoshi ; Kato, Toshihiko ; Sugimoto, M. ; Isono, Takaaki ; Kawano, Katsumi ; Koizumi, N. ; Hamada, Kazuya ; Sasa
Author_Institution :
Naka Fusion Res. Establ., JAERI, Ibaraki, Japan
fDate :
7/1/1994 12:00:00 AM
Abstract :
The effect of cyclic pulsed operation on the coil performance was studied from the electrical and mechanical points of view in the second experiment of the Nb3Sn Demo Poloidal Coil (DPC-EX). Current sharing temperatures, ac losses, displacements, and strains were measured before and after cyclic pulsed operation, which consisted of about 350 cycles. No degradation of the electrical and mechanical performance of the DPC-EX was observed in the range of these cycles
Keywords :
Tokamak devices; fusion reactor materials; niobium alloys; superconducting magnets; tin alloys; AC losses; Nb3Sn; Nb3Sn Demo poloidal coil; coil performance; current sharing temperatures; cyclic pulsed operation; electrical performance; mechanical performance; Coils; Current measurement; Degradation; Displacement measurement; Loss measurement; Niobium; Pulse measurements; Strain measurement; Temperature; Tin;
Journal_Title :
Magnetics, IEEE Transactions on
