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Published in

Institute of Electrical and Electronics Engineers, IEEE Transactions on Applied Superconductivity, 2(14), p. 604-607, 2004

DOI: 10.1109/tasc.2004.830011

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Superconducting Magnet System at the 50 Gev Proton Beam Line for the J-Parc Neutrino Experiment.

Journal article published in 2004 by T. Ogitsu, Y. Makida, T. Kobayashi, Y. Ajima, Y. Doi, N. Higashi, Y. Iwamoto, A. Ichikawa, A. Yamamoto, N. Kimura, T. Nakamoto ORCID, H. Ohhata, T. Shintomi, M. Takasaki, K. Tanaka and other authors.
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

A neutrino oscillation experiment using the J-PARC SO GeV 0.75 MW proton beam is planned as a successor to the K2K project currently being operated at KEK. A superconducting magnet system is required for the arc section of the primary proton beam line to be within the space available at the site. A system with 28 combined function magnets is proposed to simplify the system and optimize the cost. The required fields for the magnets are 2.6 T dipole and 19 T/m quadrupole. The magnets are also required to have a large aperture, 173.4 mm diameter, to accommodate the large beam emittance. The magnets will be protected by cold diodes and cooled by forced flow supercritical helium produced by a 4.5 K, 2 {approx} 2.5 kW refrigerator. This paper reports the system overview and the design status.