Development of HTS magnets

Kichiji Hatanaka; Mitsuhiro Fukuda; Keita Kamakura; Hiroshi Ueda; Tetsuhiko Yorita; Takane Saito; Yuusuke Yasuda; Takeo Kawaguchi

Development of HTS magnets

Kichiji Hatanaka, Mitsuhiro Fukuda, Keita Kamakura, Hiroshi Ueda, Tetsuhiko Yorita, Takane Saito, Yuusuke Yasuda, Takeo Kawaguchi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We have been developing magnets utilizing hightemperature superconducting (HTS) wires for this decade. We built three model magnets, a mirror coil for an ECR ion source, a set of coils for a scanning magnet and a super-ferric dipole magnet to generate magnetic field of 3 T. They were excited with AC/pulse currents as well as DC currents. Recently we fabricated a cylindrical magnet for a practical use which polarizes ultracold neutrons (UCN). The field strength at the center is higher than 3.5 T which is required to fully polarize 210 neV neutrons. The magnet was used to polarized UCN generated by the RCNP-KEK superthermal UCN source. One dipole magnet is under fabrication, which is used as a switching magnet after the RCNP ring cyclotron and is planned to be excited by pulse currents. It becomes possible to deliver beams to two experimental halls by time sharing.

Original language	English
Title of host publication	6th International Particle Accelerator Conference, IPAC 2015
Publisher	Joint Accelerator Conferences Website (JACoW)
Pages	2905-2907
Number of pages	3
ISBN (Electronic)	9783954501687
Publication status	Published - 2015
Externally published	Yes
Event	6th International Particle Accelerator Conference, IPAC 2015 - Richmond, United States Duration: May 3 2015 → May 8 2015

Other

Other	6th International Particle Accelerator Conference, IPAC 2015
Country	United States
City	Richmond
Period	5/3/15 → 5/8/15

ASJC Scopus subject areas

Nuclear and High Energy Physics
Atomic and Molecular Physics, and Optics

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Development of HTS magnets. / Hatanaka, Kichiji; Fukuda, Mitsuhiro; Kamakura, Keita; Ueda, Hiroshi; Yorita, Tetsuhiko; Saito, Takane; Yasuda, Yuusuke; Kawaguchi, Takeo.

6th International Particle Accelerator Conference, IPAC 2015. Joint Accelerator Conferences Website (JACoW), 2015. p. 2905-2907.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Hatanaka, Kichiji

AU - Fukuda, Mitsuhiro

AU - Kamakura, Keita

AU - Ueda, Hiroshi

AU - Yorita, Tetsuhiko

AU - Saito, Takane

AU - Yasuda, Yuusuke

AU - Kawaguchi, Takeo

PY - 2015

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N2 - We have been developing magnets utilizing hightemperature superconducting (HTS) wires for this decade. We built three model magnets, a mirror coil for an ECR ion source, a set of coils for a scanning magnet and a super-ferric dipole magnet to generate magnetic field of 3 T. They were excited with AC/pulse currents as well as DC currents. Recently we fabricated a cylindrical magnet for a practical use which polarizes ultracold neutrons (UCN). The field strength at the center is higher than 3.5 T which is required to fully polarize 210 neV neutrons. The magnet was used to polarized UCN generated by the RCNP-KEK superthermal UCN source. One dipole magnet is under fabrication, which is used as a switching magnet after the RCNP ring cyclotron and is planned to be excited by pulse currents. It becomes possible to deliver beams to two experimental halls by time sharing.

AB - We have been developing magnets utilizing hightemperature superconducting (HTS) wires for this decade. We built three model magnets, a mirror coil for an ECR ion source, a set of coils for a scanning magnet and a super-ferric dipole magnet to generate magnetic field of 3 T. They were excited with AC/pulse currents as well as DC currents. Recently we fabricated a cylindrical magnet for a practical use which polarizes ultracold neutrons (UCN). The field strength at the center is higher than 3.5 T which is required to fully polarize 210 neV neutrons. The magnet was used to polarized UCN generated by the RCNP-KEK superthermal UCN source. One dipole magnet is under fabrication, which is used as a switching magnet after the RCNP ring cyclotron and is planned to be excited by pulse currents. It becomes possible to deliver beams to two experimental halls by time sharing.

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