Cable testing for Fermilab´s high field magnets using small racetrack coils

Author

Feher, S. ; Ambrosio, G. ; Andreev, N. ; Barzi, E. ; Bordini, B. ; Bossert, R. ; Carcagno, R. ; Kashikhin, V.I. ; Kashikhin, V.V. ; Lamm, M.J. ; Novitski, I. ; Orris, D. ; Pischalnikov, Y. ; Sylvester, C. ; Tartaglia, M. ; Yamada, R. ; Zlobin, A.V.

Author_Institution

Fermi Nat. Accel. Lab., USA

Volume

15

Issue

2

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

1550

Lastpage

1553

Abstract

As part of the High Field Magnet program at Fermilab simple magnets have been designed utilizing small racetrack coils based on a sound mechanical structure and bladder technique developed by LBNL. Two of these magnets have been built in order to test Nb₃Sn cables used in cos-theta dipole models. The powder-in-tube strand based cable exhibited excellent performance. It reached its critical current limit within 14 quenches. Modified jelly roll strand based cable performance was limited by magnetic instabilities at low fields similar to previously tested dipole models which used similar cable.

Keywords

accelerator magnets; cable testing; materials testing; niobium alloys; superconducting cables; superconducting coils; superconducting magnets; Fermilab high field magnet; High Field Magnet program; LBNL; Nb₃Sn; Nb₃Sn cable; accelerator; accelerator magnets; bladder technique; cable testing; cos-theta dipole model; high field dipole; magnetic instability; mechanical structure; modified jelly roll strand; powder-in-tube strand; quenches; small racetrack coil; Accelerator magnets; Bladder; Cable insulation; Coils; Critical current; Fabrication; Manufacturing; Research and development; Strontium; Testing; Accelerator; high field dipole; magnet;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.849166

Filename

1439941