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Superconducting electromagnet comprising coils bonded to a heated support structure

A supporting structure and electromagnet technology, applied in the direction of magnetic objects, superconducting magnets/coils, circuits, etc., can solve problems such as magnet quenching

Active Publication Date: 2012-08-29
SIEMENS HEALTHCARE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Damage to the bond can take the form of cracks, which can lead to magnet quenching

Method used

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  • Superconducting electromagnet comprising coils bonded to a heated support structure
  • Superconducting electromagnet comprising coils bonded to a heated support structure
  • Superconducting electromagnet comprising coils bonded to a heated support structure

Examples

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Embodiment Construction

[0033] According to the invention, the heating element is provided in thermal contact with the support structure and is arranged to heat the support structure during sudden temperature transitions in order to reduce differences in interfacial strain between the coil and the support structure.

[0034] In some embodiments, a heating element is also provided in thermal contact with the coil and is arranged to heat the coil as required during sudden temperature transitions in order to reduce differences in interfacial strain between the coil and the support structure.

[0035] Quench and initial cooling are the two most common events that cause abrupt temperature changes.

[0036] During quenching, due to the energy dissipation within the coil caused by the transition from the superconducting state to the resistive state as described above, and because the coil's coefficient of thermal expansion is generally large, the coil will suddenly heat up and tend to expand more than the su...

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Abstract

A superconducting electromagnet comprising coils of superconducting wire bonded to a support structure, and wherein heating elements are provided in thermal contact with the support structure for heating the support structure.

Description

technical field [0001] The present invention relates to a superconducting electromagnet comprising a coil of superconducting wire bonded to a support structure. [0002] In particular, the present invention relates to improvements in assemblies that reduce thermally induced stresses between coils and support structures in situations where they experience sudden temperature changes. [0003] The invention relates in particular to an electromagnet comprising a substantially cylindrical assembly of annular coils aligned about a common axis but displaced relative to each other along that axis. Such arrangements (or arrangements) are often referred to as solenoid magnets, although they may not be solenoids in the strict sense of the word. Background technique [0004] Figure 1-4 Certain layouts of coils bonded to a support structure such as a solenoid magnet are schematically illustrated. [0005] figure 1 A well-known conventional arrangement is shown in which a coil 10 of ...

Claims

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Application Information

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IPC IPC(8): H01F6/00H02H5/04
CPCH01F6/06H01F6/02
Inventor H.A.布莱克斯M.J.隆菲尔德P.W.雷茨
Owner SIEMENS HEALTHCARE GMBH