Flexible Radiographic Detector Readout Using Plastic Substrate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current digital radiographic detectors are not adequately flexible or durable for use in challenging outdoor environments, limiting their effectiveness in industrial radiographic imaging.
Innovation Solution
A flexible digital radiographic detector assembly with a photosensor array supported by a flexible substrate and integrated circuit readout electronics, enclosed in a flexible sleeve that can conform to surfaces and be read out using a portable electronics box for image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a rigid glass substrate with traditional TFT array is used, then manufacturing precision and image sensor performance are improved, but flexibility and adaptability to outdoor environments deteriorate
Solution Approach 1:
The patent replaces the rigid glass substrate with a flexible plastic substrate that can be bent and conform to curved surfaces. This flexible substrate still supports the TFT array and photodiode structure while enabling the detector to adapt to various outdoor imaging geometries, including curved surfaces, thereby resolving the contradiction between manufacturing precision and flexibility.
Solution Approach 2:
The patent employs a composite structure combining flexible plastic substrate material with rigid-appearing functional layers (TFT array, scintillator, photodiode). This composite approach allows the overall detector to maintain structural integrity and manufacturing precision while the plastic substrate provides the necessary flexibility for outdoor applications.
2Ease of operation
If a portable detector with flexible structure is used, then ease of operation and adaptability are improved, but device complexity and durability worsen
Solution Approach 1:
The patent divides the detector into distinct functional segments: the flexible substrate-based imaging array, the scintillator layer, the photodiode array, and a separate rigid enclosure housing. This segmentation allows each component to be optimized independently - the flexible parts for portability and the rigid enclosure for protection and signal processing - thereby reducing overall device complexity while maintaining ease of operation.
Solution Approach 2:
The patent introduces a rigid enclosure as an intermediary protective layer between the flexible detector components and the external environment. This enclosure simplifies the overall system by providing a standardized protective housing that reduces the complexity of protecting the flexible internal components, while still allowing the detector to be portable and easy to operate.
3Reliability
If traditional rigid detector enclosure is used, then reliability and protection are improved, but weight and flexibility worsen
Solution Approach 1:
The patent uses a thin flexible plastic substrate as the primary structural element, replacing heavy rigid glass or metal substrates. This flexible substrate provides sufficient mechanical support and protection for the electronic components while dramatically reducing the overall weight of the detector, thereby resolving the contradiction between reliability and weight.
Solution Approach 2:
The patent employs composite material construction where thin flexible plastic layers are combined with functional layers (TFT array, scintillator, photodiode) to create a lightweight yet protective structure. This composite approach provides adequate protection for reliability while minimizing weight compared to traditional rigid enclosures.
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 flexible detector assembly provides lightweight, durable, and efficient image capture and processing capabilities in outdoor environments, enhancing imaging productivity and reliability.
Implementation Method 1
A scintillator is combined with the image sensor array
Implementation Method 2
an amorphous two-dimensional silicon TFT/photo diode image sensor array
Data Source
AI summary
A flexible digital radiographic detector assembly includes a flexible sleeve enclosing a photosensor array supported by a flexible substrate. Integrated circuit readout electronics are coupled to the photosensor array and to a circuit board having conductive contacts. The contacts engage a hand carried read out electronics box to initiate a read out of image data captured in the photosensor array and to display the image data on a screen in the read out electronics box.