Superconducting combined function magnet system for J-PARC neutrino experiment

The J-PARC Neutrino Experiment, the construction of which starts in JFY 2004, will use a superconducting magnet system for its primary proton beam line. The system, which bends the 50 GeV 0.75 MW proton beam by about 80 degrees, consists of 28 superconducting combined function magnets. The magnets u...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2005-06, Vol.15 (2), p.1175-1180
Main Authors: Ogitsu, T., Ajima, Y., Anerella, M., Escallier, J., Ganetis, G., Gupta, R., Hagedorn, D., Harrison, M., Higashi, N., Iwamoto, Y., Ichikawa, A., Jain, A., Kimura, N., Kobayashi, T., Makida, Y., Muratore, J., Nakamoto, T., Obana, T., Ohhata, H., Parker, B., Sasaki, K., Takasaki, M., Tanaka, K., Terashima, A., Tomaru, T., Wanderer, P., Yamamoto, A.
Format: Article
Language:English
Subjects:
Accelerator safety
Apertures
Applied sciences
Beams (structural)
Bends
Conduction cooling
Electrical engineering. Electrical power engineering
Electromagnets
Exact sciences and technology
Horizontal
Magnetic analysis
Neutrino sources
Neutrinos
particle beam transport
Particle beams
Proton beams
Safety
Structural beams
superconducting accelerator magnets
Superconducting coils
Superconducting epitaxial layers
Superconducting magnets
Superconductivity
System analysis and design
Various equipment and components
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Summary:The J-PARC Neutrino Experiment, the construction of which starts in JFY 2004, will use a superconducting magnet system for its primary proton beam line. The system, which bends the 50 GeV 0.75 MW proton beam by about 80 degrees, consists of 28 superconducting combined function magnets. The magnets utilize single layer left/right asymmetric coils that generate a dipole field of 2.6 T and a quadrupole field of 18.6 T/m with the operation current of about 7.35 kA. The system also contains a few conduction cooled superconducting corrector magnets that serve as vertical and horizontal steering magnets. All the magnets are designed to provide a physical beam aperture of 130 mm in order to achieve a large beam acceptance. Extensive care is also required to achieve safe operation with the high power proton beam. The paper summarizes the system design as well as some safety analysis results.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2005.849525