Sumitomo Heavy Industries, Ltd.

Akito Higuchi

Takaaki Morie

To provide a superconducting magnet device enabling improved access to internal equipment. A superconducting magnet device includes: a superconducting coil; and a hollow tubular cryostat having an outer peripheral wall and an inner peripheral wall connected to each other so as to define a vacuum region where the superconducting coil is disposed. The cryostat has a tubular partition wall connecting the outer peripheral wall and the inner peripheral wall and a cavity partitioned from the vacuum region by the tubular partition wall is formed inside the tubular partition wall. The outer peripheral wall has an opening portion wide in the circumferential direction of the cryostat, and the opening portion communicates with the cryostat hollow portion radially inside the inner peripheral wall through the cavity.

Superconducting magnet device and cyclotron

There is provided a cyclotron which accelerates a charged particle in an orbital trajectory to emit a charged particle beam. The cyclotron includes a magnetic pole that generates a magnetic field required for accelerating the charged particle, and a magnetic channel portion having a magnetic channel disposed on an outer peripheral portion of the orbital trajectory to guide the charged particle beam to an extraction trajectory and to focus the charged particle beam. The magnetic channel portion is attached to the magnetic pole.

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Kanagawa, Japan

Akito Higuchi