Superconducting Conductor Stabilization via Segmented Insulative Channels
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Solution Overview
Problem
Current magnetic conductor assemblies face challenges in achieving uniform and large magnetic fields, leading to size and cost constraints in applications like proton therapy, where superconducting magnets are preferred but suffer from reliability issues due to quenching, and conventional designs are costly and require complex stabilization to prevent conductor movement.
Innovation Solution
A conductor assembly with a tilted double helix configuration and channels formed in insulative layers to stabilize the conductor, allowing for precise positioning and minimizing movement, which reduces the risk of quenching and simplifies the manufacturing process, enabling the use of superconducting magnets for high-field applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If superconducting magnets are used to generate high magnetic fields, then field strength and system size are improved, but reliability deteriorates due to quenching risks
Solution Approach 1:
The conductor is divided into multiple discrete segments separated by insulative barriers within the channel structure. This segmentation prevents continuous thermal propagation along the conductor, isolating potential quench events to specific segments and preventing system-wide failure.
Solution Approach 2:
Insulative layers and barriers are introduced as intermediary elements between conductor segments. These intermediaries provide thermal and electrical isolation, preventing direct thermal coupling that would otherwise propagate quench events throughout the entire conductor assembly.
2Power
If conventional superconducting magnet designs are used, then high magnetic fields are achieved, but cost and structural complexity increase due to required stabilization mechanisms
Solution Approach 1:
The stabilization function is merged into the channel structure itself rather than being a separate component. The insulative layers form integral parts of the conductor assembly, providing both electrical isolation and mechanical stabilization in a unified structure.
Solution Approach 2:
The insulative layers serve multiple functions simultaneously: they provide electrical insulation between conductor segments, thermal isolation to prevent quench propagation, and mechanical stabilization to prevent conductor movement. This multi-functionality eliminates the need for separate stabilization components.
3Reliability
If conductor stabilization structures are added to prevent movement, then reliability is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The insulative layers are pre-formed and channels are prepared before conductor insertion. This preliminary preparation ensures precise positioning and stabilization of the conductor segments without requiring complex post-assembly adjustment mechanisms.
Solution Approach 2:
The channel structure with insulative layers provides self-stabilization through its geometric configuration. The conductor segments are passively stabilized by the physical constraints of the channel geometry and insulative barriers, eliminating the need for active stabilization mechanisms or complex assembly procedures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides improved reliability and reduced costs for high-field magnetic systems by stabilizing conductors within channels, allowing for more efficient and stable generation of large magnetic fields, enhancing the deployment of charged particle therapy and other applications.
Implementation Method 1
conductor assemblies which, when conducting current, generate a magnetic field
Implementation Method 2
channels formed in insulative layers to stabilize the conductor, allowing for precise positioning and minimizing movement
Data Source
AI summary
A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method provides a first insulative layer tubular in shape and including a surface along which a conductor segment may be positioned. A channel formed in the surface of the insulative layer defines a first conductor path and includes a surface of first contour in cross section along a first plane transverse to the conductor path. A segment of conductor having a surface of second contour in cross section is positioned at least partly in the channel and extends along the conductor path. Along the first plane, contact between the conductor surface of second contour and the channel surface of first contour includes at least two separate regions of contact.