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Title: A 9. 1-T iron-free Nb- Ti dipole magnet with pancake windings

Conference · · IEEE Trans. Nucl. Sci.; (United States)
OSTI ID:5482703

An eight-pancake Nb-Ti dipole magnet with bent-up ends and called D-10B has been built and tested. This magnet is a Nb-Ti version of a Nb/sub 3/Sn magnet designed to produce a 10-tesla dipole field in a 40 mm diameter aperture. The pancake design is used for the heavy 12,000 ampere Nb/sub 3/Sn cable because of the mechanical difficulty in winding such a heavy cable into the conventional nested cylindrical shell configuration with a 2'' inner winding diameter. The Nb-Ti version operates at 1.8 K in helium II, has superconducting cable half as thick as the Nb/sub 3/Sn cable, and operates at half the current (6,000 amperes) at 10 tesla. Both magnets are approximately one meter long. D-10B was tested from January 26 to February 2, 1983, and reached short-sample performance in both helium I and helium II after moderate training. The central field at 4.3 K is 7.0 tesla and at 1.8 K is 9.1 tesla. Ramp rate sensitivity and cyclic heating data were also measured.

Research Organization:
Lawrence Berkeley Lab., Univ. of Cal., Berkeley, CA 94720
DOE Contract Number:
AC03-76SF00098
OSTI ID:
5482703
Report Number(s):
CONF-830311-; TRN: 84-003263
Journal Information:
IEEE Trans. Nucl. Sci.; (United States), Vol. NS-30:4; Conference: Particle accelerator conference, Santa Fe, NM, USA, 21 Mar 1983
Country of Publication:
United States
Language:
English