Development and test results of the prototype active shield dipole magnets for the KEK B-Factory

Journal Article · Mon Jul 01 00:00:00 EDT 1996 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.508582· OSTI ID:282378

Tsuchiya, K; Ohuchi, N; Kobayashi, T M; Ajima, Y; Ogitsu, T; Haruyama, T; Doi, Y ^[1]

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1. National Lab. for High Energy Physics, Tsukuba, Ibaraki (Japan)

A novel dipole magnet with an active shield coil has been developed as a candidate of the separation dipole in the interaction region of the KEK B-Factory. This is an iron-free magnet with an inner aperture of 113.8 mm diameter and a nominal field of 0.7 T. The main coil produces a field of 1.6 T, while the shield coil, which sits outside the main coil and has a current in the opposite direction produces a field of {minus}0.9 T and suppresses the outside field to the level of 5 mT at a radius of 200 mm. Two prototype dipoles have been fabricated and tested. This paper summarizes the design, construction and test results of the dipoles.

• OSTI ID: 282378
• Report Number(s): CONF-950691--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 4Pt1 Vol. 32; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
CRYOSTATS
DESIGN
JAPAN
MESON FACTORIES
PERFORMANCE
PERFORMANCE TESTING
SUPERCONDUCTING MAGNETS