Title:
軸方向積層バルク副磁石の個々の温度制御を伴う超伝導磁石システム
Document Type and Number:
Japanese Patent JP7245283
Kind Code:
B2
Abstract:
A superconductor magnet system (2), comprising- a cryostat (4) having a room temperature bore (10),- a superconductor bulk magnet (5), contained in the cryostat (4) and arranged coaxially with the room temperature bore (10), and- a cryogenic cooling system (12) adapted for cooling the superconductor bulk magnet (5),wherein the superconductor bulk magnet (5) comprises at least N axially stacked bulk sub-magnets (6a-6c), with N≥3,wherein the bulk sub-magnets (6a-6c) are substantially ring shaped and arranged coaxially with the room temperature bore (10),wherein between each two axially neighboring bulk sub-magnets (6a-6c), an intermediate body (7a-7b) is arranged,wherein the intermediate bodies (7a-7b) are substantially ring-shaped and arranged coaxially with the room temperature bore (10),and the bulk sub-magnets (6a-6c) are supported on the intermediate bodies (7a-7b),is characterized in that the intermediate bodies (7a-7b) are made from a non-metallic thermal insulator material, having a specific thermal conductivity smaller than a specific thermal conductivity of the material of the bulk sub-magnets (6a-6c),and that the cryogenic cooling system (12) is adapted for independently controlling the temperature of each bulk sub-magnet (6a-6c),wherein for each bulk sub-magnet (6a-6c), there is- a temperature sensor (16a-16c) for sensing the temperature of the respective bulk sub-magnet (6a-6c), and- an adjustment unit (13a-13c) for adjusting a heating power and/or a cooling power at the respective bulk sub-magnet (6a-6c). The invention provides a superconductor magnet systems based on a superconductor bulk magnet, with which an increased homogeneity of a generated magnetic field may be achieved in a simple way.
Inventors:
Jörg Hinderer
Stephan Alfred March
Frank Borgnortti
Dmitry Eshchenko
Stephan Heiss
Pierre-Alain Bouvier
Stephan Alfred March
Frank Borgnortti
Dmitry Eshchenko
Stephan Heiss
Pierre-Alain Bouvier
Application Number:
JP2021080824A
Publication Date:
March 23, 2023
Filing Date:
May 12, 2021
Export Citation:
Assignee:
Bruker Switzerland AG
International Classes:
H01F6/04; A61B5/055; G01N24/00; G01R33/387; H01F6/00
Domestic Patent References:
| JP2021086927A |
Foreign References:
| WO2018021507A1 |
Attorney, Agent or Firm:
Another role
Satoshi Muramatsu
Satoshi Muramatsu