Title :
Test results for a high field (13 T) Nb3Sn dipole
Author :
McInturff, A.D. ; Benjegerdes, R. ; Bish, P. ; Caspi, S. ; Chow, K. ; Dell´Orco, D. ; Dietderich, D. ; Hannaford, R. ; Harnden, W. ; Higley, H. ; Lietzke, A. ; Morrison, L. ; Morrison, M. ; Scanlan, R. ; Smithwick, J. ; Taylor, C. ; van Oort, J.
Author_Institution :
Lawrence Berkeley Nat. Lab., CA, USA
Abstract :
A Nb3Sn dipole magnet (D20) has been designed, constructed, and tested at LBNL. Previously, we had reported test results from a hybrid design dipole which contained a similar inner Nb 3Sn and outer NbTi winding. This paper presents the final assembly characteristics and parameters which will be compared with those of the original magnet design. The actual winding size was determined and a secondary calibration of the assembly pre-load was done by pressure sensitive film. The actual azimuthal and radial D20 pre-loading was accomplished by a very controllable novel stretched wire technique. D20 reached 12.8 T (4.4 K) and 13.5 T (1.8 K) the highest dipole magnetic fields obtained to date in the world
Keywords :
accelerator magnets; calibration; niobium alloys; superconducting magnets; tin alloys; type II superconductors; 1.8 K; 12.8 T; 13.5 T; 4.4 K; Nb3Sn; accelerator magnets; assembly preload; dipole magnet; final assembly characteristics; high field dipole; pressure sensitive film; secondary calibration; stretched wire technique; superconducting magnet; test results; type II superconductors; winding size; Assembly; Fixtures; Heat treatment; Niobium compounds; Packaging; Space heating; Temperature; Testing; Tin; Titanium compounds;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.753158
