Curved Gaseous Particle Detector Frame Design
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Solution Overview
Problem
Conventional gaseous particle detectors are not compact or lightweight, making them unsuitable for curved structures, which require multiple planar elements to achieve a curved surface, resulting in bulkiness and increased weight.
Innovation Solution
A curved detector design featuring a stack of two layers held together by a self-supporting frame formed by interconnected beams and curved bars, made from materials like carbon with high Young's modulus, allowing for a compact and lightweight structure while maintaining detection efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If multiple planar structures are abutted to form a curved surface, then a curved detector structure is achieved, but the detector becomes bulky and heavy
Solution Approach 1:
The patent applies curvature principle by forming a single curved detector structure instead of assembling multiple planar elements. The detector is manufactured with an inherent curved geometry that matches the desired detection surface, eliminating the need for multiple segments and reducing overall weight while maintaining the curved shape requirement.
Solution Approach 2:
The patent merges multiple functional components into a single integrated curved detector unit. By combining the detection elements, support structures, and curved geometry into one unified structure, the design eliminates the weight and complexity associated with assembling multiple separate planar components.
2Shape
If multiple planar structures are abutted to form a curved surface, then a curved detector structure is achieved, but the detector becomes bulky
Solution Approach 1:
The patent uses inherent curved geometry in a single detector structure, which optimizes the volume efficiency for curved surfaces. This approach eliminates the gaps and redundant materials required when assembling multiple planar segments, resulting in a more compact curved detector with reduced overall volume.
Solution Approach 2:
By integrating all detector components into a single curved unit, the patent eliminates the volume occupied by multiple separate structures and their assembly interfaces. This merging reduces the total detector volume while maintaining the necessary curved detection surface area.
3Strength
If a self-supporting frame with curved bars is used, then structural integrity is improved, but manufacturing complexity increases
Solution Approach 1:
The patent incorporates curved bars and arched structures that provide inherent structural strength through their geometric form. The curved geometry naturally resists bending and distributes loads more effectively than straight elements, enhancing structural integrity while the curvature can be achieved through standard forming processes.
Solution Approach 2:
The patent optimizes the structural parameters of the frame elements, such as the thickness, curvature radius, and distribution of bars, to achieve the required strength with minimal material. By carefully selecting these parameters, the design maintains structural integrity while simplifying manufacturing through standardized component dimensions.
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 design enhances the detector's compactness and reduces weight while maintaining high transparency and detection capabilities, enabling efficient particle detection with a reduced material footprint.
Implementation Method 1
the frame is made of a material whose Young's modulus is greater than 30 GPa. In a non-limiting embodiment, the frame is made of carbon.
Implementation Method 2
the anode 7 and the grid 9 are kept parallel to each other thanks to electrically insulating spacers 11 which rest on the anode 7. Bias means 12 are also provided to bring grid 9 (that is to say the cathode) to a strongly negative voltage with respect to anode 7... the high voltage is chosen to create in the space A between the anode 7 and the cathode 9, or amplification space, an electric field EA whose intensity is greater than or equal to 50 kV/cm... capable of amplifying electrons by an avalanche process
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
The detector (100) has a stack of two layers (101, 103), where the layers are curved and maintained together by a frame formed of two spars (105) defining a plane. The two spars are connected together by two curved bars outside of the plane, and the frame is placed between the two layers of the stack. The two layers are transparent to more than 99% of a set of particles to be detected. One of the two layers is arranged with an outer face (101F 1) facing another layer or drift layer, where the outer face supports an active detection part (102). The frame is made of carbon. An independent claim is also included for a structure for maintaining a set of detectors.