Superconducting Accelerator Tuner with Tensile Member
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Solution Overview
Problem
Existing superconducting accelerators face challenges in tuning resonance frequency due to the need for strong and large components, leading to increased costs, size, and labor for layout operations, particularly in configurations that apply force or bending moments to adjust the gap between seat plates or beam members.
Innovation Solution
A superconducting accelerator design featuring a tensile member wound around the refrigerant tank, with pressing members and tension adjustors to deform the acceleration cavity, allowing for resonance frequency tuning without significant size or strength requirements on the refrigerant tank, minimizing protrusion and allowing continuous wire placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the length in the axial direction of the refrigerant tank is adjusted by moving the wedge-shaped nut between seat plates, then the resonance frequency of the superconductive acceleration cavity can be tuned, but a large force is applied to the seat plates or nuts requiring them to be strong and large in size
Solution Approach 1:
The patent introduces beam members as intermediary elements that extend from both ends of the refrigerant tank to apply tuning force. These beam members act as mediators that distribute the force required for resonance frequency tuning, eliminating the need for large, strong nuts and seat plates directly on the refrigerant tank. The beam members transfer the tuning force from screw members to the refrigerant tank indirectly, reducing the strength requirements of the components directly attached to the tank.
Solution Approach 2:
The tuning mechanism is segmented into multiple components: screw members for force application, beam members for force transmission, and the refrigerant tank for cavity support. This segmentation allows the force required for tuning to be distributed across multiple elements rather than concentrated on single large components, reducing the size and strength requirements of individual parts like nuts and seat plates.
2Measurement precision
If the length in the axial direction of the refrigerant tank is adjusted by moving the wedge-shaped nut between seat plates, then the resonance frequency of the superconductive acceleration cavity can be tuned, but the seat plates or nuts increase in size causing increased costs and size of the superconducting accelerator
Solution Approach 1:
Beam members serve as intermediary elements that extend from the ends of the refrigerant tank to apply tuning force. These intermediaries allow the tuning mechanism to operate with smaller components on the refrigerant tank itself, reducing the overall volume and size of the superconducting accelerator while maintaining the capability for precise resonance frequency tuning.
Solution Approach 2:
The patent extends the tuning mechanism into the radial dimension by using beam members that protrude from the ends of the refrigerant tank. This dimensional extension allows the tuning force to be applied from outside the main tank volume, enabling compact tuning components and reducing the overall size of the accelerator system compared to conventional in-tank tuning mechanisms.
3Measurement precision
If beam members with length larger than the diameter of the refrigerant tank are provided on both sides, then the resonance frequency can be tuned by changing the gap between beam members, but a bending moment is applied to the beam members requiring them to be strong
Solution Approach 1:
The beam members are preliminarily positioned and supported at their ends extending from the refrigerant tank. This preliminary support arrangement prevents excessive bending moments from developing during the tuning operation. By providing support points at the ends of the beam members, the structure is prepared in advance to handle the tuning forces without requiring the beam members themselves to be exceptionally strong.
4Measurement precision
If strong and large components are used for resonance frequency tuning, then the tuning function can be achieved, but labor for layout work increases due to interference with other devices
Solution Approach 1:
Beam members act as intermediaries that extend the tuning mechanism away from the main accelerator components. This intermediary arrangement allows tuning operations to be performed from the ends of the refrigerant tank, minimizing interference with other accelerator devices and reducing the layout work and labor time required during installation and operation.
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
This design enables efficient resonance frequency tuning with reduced costs, size, and labor, while maintaining the structural integrity and cooling efficiency of the superconducting accelerator.
Implementation Method 1
a tensile member provided so as to be continuously wound around the outer circumference of the refrigerant tank and configured to generate a tensile force in a direction in which the pressing members are brought come into close each other
Implementation Method 2
A superconducting accelerator makes a superconductive acceleration cavity, which is formed of a superconducting material, superconductive by cooling the superconductive acceleration cavity using a refrigerant such as liquid helium. Accordingly, the electrical resistance of the superconductive acceleration cavity becomes almost zero
Implementation Method 3
a resonance frequency of the superconductive acceleration cavity is tuned by adjusting the length of a gap in which a high-frequency electric field for accelerating charged particles is formed
Data Source
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AI summary
This superconducting accelerator comprises: an accelerating cavity that forms a space in which a charged particle beam is accelerated in a superconducting state; and a refrigerant vessel (11) that is disposed on the outer peripheral side of the acceleration cavity and in which a refrigerant for cooling the accelerating cavity is filled in a gap to the accelerating cavity. The superconducting accelerator further comprises a pair of pressing members (21) that are provided on the outer peripheral section of the refrigerant vessel (11) and are respectively provided to both end sections of the charged particle beam in the beam axis direction in the acceleration cavity or to both end sections in a direction orthogonal to the beam axis direction. The superconducting accelerator further comprises: a wire (22) that is continuously provided on the outer peripheral section of the refrigerant vessel (11) and that generates tension in a direction that brings the pair of pressing members (21) closer to each other; and a tension adjustment part (25) that adjusts the tension generated by the wire (22).