Scintillator Array Zigzag Reflector Without Adhesive
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Solution Overview
Problem
Existing scintillator arrays face challenges in maximizing light output and reducing cross-talk between pixels, with liquid adhesives potentially discoloring reflectors and reducing their reflectivity, and existing methods for attaching reflectors are complex and inefficient.
Innovation Solution
A scintillator array design where a reflector is placed in a zigzag pattern around scintillator pixels without an intermediate adhesive layer, directly in contact with the pixels, and a housing with square internal corners is used to secure the array, maintaining uniform pitch and stability while enhancing reflectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid adhesives are used to attach reflectors to scintillator pixels, then the reflectors can be secured to the pixels, but the adhesives discolor the reflectors and reduce their reflectivity
Solution Approach 1:
The patent removes the adhesive layer from the system entirely. Reflectors are attached to scintillator pixels through direct mechanical interlocking structures (such as grooves and protrusions) or physical compression, eliminating the intermediate adhesive substance that causes discoloration and reflectivity loss.
Solution Approach 2:
The patent introduces mechanical interlocking structures (grooves, protrusions, or compression mechanisms) as intermediaries between the reflector and scintillator pixel. These structures provide secure attachment without requiring adhesive materials, thus maintaining reflector integrity and optical performance.
2Object-generated harmful factors
If reflectors are wrapped individually around each scintillator pixel, then cross-talk between pixels is reduced, but the manufacturing process becomes complex and time-consuming
Solution Approach 1:
The patent combines multiple individual reflector attachment operations into a single integrated structure. Reflectors for multiple pixels are pre-assembled into a unified array configuration, allowing simultaneous attachment to corresponding scintillator pixels through compression or mechanical interlocking, thereby reducing manufacturing steps and complexity.
Solution Approach 2:
The patent performs preliminary assembly of reflectors into an integrated array structure before final attachment to the scintillator pixel array. This pre-assembly step establishes proper positioning and spacing of reflectors, simplifying the final attachment process and reducing overall manufacturing complexity.
3Stability of the object's composition
If a housing with square internal corners is used to secure the scintillator array, then uniform pitch and structural stability are maintained, but the manufacturing precision requirements increase
Solution Approach 1:
The patent incorporates compliance features (such as flexible elements, damping structures, or tolerance-compensating designs) into the housing or array assembly that absorb dimensional variations and manufacturing tolerances. This cushioning effect maintains uniform pitch and structural stability even when manufacturing precision varies within acceptable ranges.
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 increases light output by up to 60% compared to arrays using adhesives, as it avoids adhesive-related reflectivity losses and maintains structural stability, resulting in improved performance for radiation detection applications.
Implementation Method 1
Reflectors can be used in scintillator arrays to increase light output. Reflectors can also be used to reduce cross-talk between scintillator pixels in an array.
Data Source
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AI summary
Embodiments of the present disclosure relate to a scintillator array including a reflector disposed between the scintillator pixels, and methods of forming the scintillator array and radiation detector. In an embodiment, the reflector can be used in the scintillator array without an adhesive. In another embodiment, the reflector can be disposed in a zigzag pattern between the scintillator pixels.