Multi-Stage Magnetic Shielding for Superconducting Systems
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Solution Overview
Problem
Existing magnetic shielding systems for superconducting-based computing systems require extensive space for installation and maintenance, and their single-piece construction can compromise performance due to spatial demands and potential gaps in shielding.
Innovation Solution
A multi-stage magnetic shielding system comprising selectively mountable and dismountable sections of mu-metal and superconducting shields, with nested cylindrical geometries and strategically aligned seams to minimize space requirements while enhancing shielding effectiveness, including the use of compensation coils for magnetic field compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If single-piece magnetic shielding construction is used, then shielding effectiveness is improved, but spatial requirements and installation complexity increase
Solution Approach 1:
The magnetic shielding system is divided into multiple detachable sections that can be assembled together to form a complete shield. Each section contains magnetic shielding material and can be independently handled, stored, and installed. This segmentation allows the shielding system to achieve comprehensive coverage without requiring excessive installation space, as sections can be maneuvered into position and connected together.
2Volume of moving object
If multi-section magnetic shielding system is used, then spatial requirements are reduced, but potential gaps and shielding performance may deteriorate
Solution Approach 1:
The magnetic shielding sections are designed with nested or overlapping geometries that allow them to fit together tightly. The sections can be nested within each other or overlap at their interfaces, creating continuous shielding coverage without gaps. This nested configuration ensures that magnetic fields are blocked across the entire assembled structure while maintaining compact spatial footprint.
3Ease of operation
If detachable sections are used, then ease of installation and maintenance is improved, but device complexity increases
Solution Approach 1:
Each detachable section integrates multiple functions into a single component: magnetic shielding material, structural support, and connection interfaces are combined within each section. This merging reduces the number of separate parts and simplifies the overall assembly process, as sections can be installed as complete functional units rather than requiring assembly of multiple sub-components.
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 system provides effective magnetic shielding with reduced spatial demands, improved performance by ensuring continuous contact surfaces and tortuous paths for magnetic field reduction, and enhanced shielding through nested stages and superconducting materials, effectively creating a magnetic vacuum environment for sensitive electronics.
Implementation Method 1
a superconducting shield formed of a material that is superconducting below a critical temperature
Implementation Method 2
a first shield formed of a material of high magnetic permeability
Data Source
AI summary
Magnetic shields and magnetic shielding systems are described. The excessive spatial demands of known mu-metal/cryoperm and superconducting shielding systems are reduced by a new multi-piece shield construction approach. A complete magnetic shielding system for use with superconducting-based computing systems, such as superconducting quantum computing systems, is also described. This complete system may include mu-metal/cryoperm shields and superconducting shields using either compensatory magnetic fields, expulsion by temperature gradients, or a combination of the two.