Development of a Superconducting Solenoid for Hyperfine Structure Measurement of Muonium at the J-PARC

A superconducting solenoid for a new Muonium HyperFine Structure, MuHFS, measurement at J-PARC is being developed. High homogeneity of magnetic field below 1 ppm is required for this experiment. Superconducting main coils were designed and error fields caused by the main coil misalignment were evalu...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2012-06, Vol.22 (3), p.4500904-4500904
Main Authors: Sasaki, Ken-ichi, Sugano, M., Ohkubo, R., Iinuma, H., Ogitsu, T., Saito, N., Shimomura, K., Yamamoto, A.
Format: Article
Language:English
Subjects:
Applied sciences
Coils
Electrical engineering. Electrical power engineering
Electromagnets
Exact sciences and technology
Homogeneity
Hoop stress
Hyperfine structure
Hyperfine transition
J-PARC
Magnetic fields
Magnetic noise
Magnetic resonance imaging
Magnetic shielding
Muonium
Solenoids
Superconducting coils
Superconducting magnets
superconducting solenoid
Superconductivity
Various equipment and components
Windings
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Summary:A superconducting solenoid for a new Muonium HyperFine Structure, MuHFS, measurement at J-PARC is being developed. High homogeneity of magnetic field below 1 ppm is required for this experiment. Superconducting main coils were designed and error fields caused by the main coil misalignment were evaluated for designing superconducting shim coils. The coil deformation by the coil winding, thermal contraction and hoop stress due to the magnetic force was also estimated. Quench protection study was performed to determine the parameters of superconducting strand.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2011.2176301