Test results of SeCRETS, a stability experiment about segregated copper in CICC

Author

Bruzzone, Pierluigi ; Fuchs, Albert M. ; Stepanov, Boris ; Vecsey, Georg ; Zapretilina, Elena

Author_Institution

CRPP, Villigen, Switzerland

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

2018

Lastpage

2021

Abstract

Two Nb₃Sn cable-in-conduit conductors have been manufactured with identical non-Cu cross sections and the stabilizer either included in the Nb₃Sn composite or partly segregated as copper wires. The two conductors are series connected and wound as a bifilar, single layer solenoid, assembled in the high field bore (11 T) of the SULTAN test facility. Beside the DC and AC losses characterization, the key tests include stability under pulsed transversal field (dB/dt up to 180 T/s), at DC operating current up to 12 kA. The results show that strong, transverse field transients can be withstood by both conductors with small temperature margin. Cost reduction measures for fusion conductors are discussed

Keywords

electric conduits; fusion reactors; niobium alloys; plasma confinement; plasma instability; superconducting cables; tin alloys; 11 T; 12 kA; DC operating current; Nb₃Sn; Nb₃Sn cable-in-conduit conductors; SULTAN test facility; SeCRETS; bifilar, single layer solenoid; fusion conductors; losses characterization; pulsed transversal field; transverse field transients; Conductors; Copper; Manufacturing; Niobium; Solenoids; Stability; Testing; Tin; Wires; Wounds;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920250

Filename

920250