Title :
Quench Performance of a 4-m Long
Shell-Type Dipole Coil
Author :
Chlachidze, Guram ; Ambrosio, Giorgio ; Andreev, Nikolai ; Barzi, Emanuela ; Bossert, Rodger ; Carcagno, Ruben H. ; Kashikhin, Vladimir S. ; Kashikhin, Vadim V. ; Lamm, Michael J. ; Nobrega, F. ; Novitski, Igor ; Orris, Darryl ; Sylvester, Cosmore ; Tarta
Author_Institution :
Fermi Nat. Accel. Lab. (Fermilab), Batavia, IL, USA
fDate :
6/1/2009 12:00:00 AM
Abstract :
Fermilab has finished the first phase of Nb3Sn technology scale up by testing 2-m and 4-m long shell-type dipole coils in a dasiamagnetic mirrorpsila configuration. The 2-m long coil, made of Powder-in-Tube (PIT) Nb3Sn strand, reached its short sample limit at a field level of 10 T. The 4-m long coil, made of advanced Nb3Sn strand based on the Restack Rod Process (RRP) of 108/127 design, has been recently fabricated and tested. Coil test results at 4.5 K and 2.2 K are reported and discussed.
Keywords :
accelerator magnets; critical currents; niobium alloys; quenching (thermal); superconducting coils; superconducting magnets; superconducting materials; tin alloys; Fermilab; Nb3Sn; Powder-in-Tube strand; RRP; Restack Rod Process; accelerator magnets; magnet critical current; magnetic flux density 10 T; magnetic mirror configuration; quench performance; shell-type dipole coil tests; size 4 m; temperature 2.2 K; temperature 4.5 K; ${rm Nb}_{3}{rm Sn}$ strand; Accelerator magnets; cable; coil; dipole mirror; quench; stability; superconducting magnet;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2009.2018276