US 12,033,795 B2
Superconducting magnet device and cyclotron
Akito Higuchi, Kanagawa (JP)
Assigned to SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed by SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed on Apr. 4, 2022, as Appl. No. 17/712,918.
Claims priority of application No. 2021-065751 (JP), filed on Apr. 8, 2021.
Prior Publication US 2022/0328226 A1, Oct. 13, 2022
Int. Cl. H01F 6/04 (2006.01); H01F 6/06 (2006.01); H05H 7/04 (2006.01); H05H 13/00 (2006.01)
CPC H01F 6/04 (2013.01) [H01F 6/06 (2013.01); H05H 7/04 (2013.01); H05H 13/005 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A superconducting magnet device comprising:
a superconducting coil; and
a hollow tubular cryostat including 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,
wherein the cryostat includes 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, and
the outer peripheral wall includes an opening portion wide in a circumferential direction of the cryostat and the opening portion communicates with a cryostat hollow portion radially inside the inner peripheral wall through the cavity so as to enable access from an outside of the cryostat to internal equipment disposed in the cavity and to the cryostat hollow portion.