Dual-Layer Scintillator Detector for Single-Shot Dual-Energy Imaging
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Solution Overview
Problem
Current radiographic technology requires dual exposures of high-energy and low-energy radiation to achieve clear images, leading to increased device thickness, weight, and manufacturing costs due to the need for two X-ray array panels.
Innovation Solution
A radiation-sensing device with a substrate, a first scintillator layer, a second scintillator layer, and an array layer, where the first scintillator layer includes blocking walls and scintillator elements, and the second scintillator layer is pixelated or includes light-shielding elements, allowing for simultaneous capture of high-energy and low-energy images using a single radiation array panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If two X-ray array panels are used to simultaneously obtain high-energy and low-energy images, then dual-energy imaging can be achieved in one radiation exposure, but the overall thickness and weight of the radiation flat panel detector will increase
Solution Approach 1:
The patent combines two scintillator layers with different energy responses into a single detector module, allowing dual-energy imaging capability while maintaining a compact form factor. The first scintillator layer is optimized for high-energy X-rays while the second layer responds to both high and low energy X-rays, enabling energy discrimination without requiring separate detector panels.
Solution Approach 2:
The detector is segmented into multiple scintillator layers with distinct functional characteristics. The first scintillator layer specifically targets high-energy radiation while the second layer captures both high and low energy radiation, allowing energy-based signal separation through spatial and functional segmentation of the detection medium.
2Productivity
If two X-ray array panels are used to simultaneously obtain high-energy and low-energy images, then dual-energy imaging can be achieved in one radiation exposure, but the manufacturing cost will increase significantly
Solution Approach 1:
The patent merges multiple detection functions into a single integrated detector module, reducing the total number of components that need to be manufactured and assembled. This integration approach lowers manufacturing complexity and cost while maintaining dual-energy imaging functionality.
3Measurement precision
If continuous exposure of high-energy and low-energy radiation is used to obtain clear images, then dual-energy imaging can be achieved, but the device thickness will increase due to requiring two array panels
Solution Approach 1:
The patent combines multiple scintillator layers into a single integrated detector structure, achieving dual-energy imaging capability while maintaining a compact thickness profile that is comparable to conventional single-energy detectors.
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
Enables clear images of high-energy and low-energy radiation to be obtained in a single radiation irradiation, reducing the overall weight and manufacturing costs of the device by eliminating the need for dual array panels.
Implementation Method 1
a first scintillator layer (104), and a second scintillator layer (106)... The first scintillator layer is disposed on a first side of the substrate... convert low-energy radiation into visible light
Implementation Method 2
The second scintillator layer is disposed on a second side of the substrate... convert high-energy radiation into visible light
Implementation Method 3
The array layer is located between the first scintillator layer and the second scintillator layer, and has a plurality of photosensitive elements
Data Source
AI summary
A radiation-sensing device is provided. The radiation-sensing device includes a substrate, a first scintillator layer, a second scintillator layer, and an array layer. The first scintillator is disposed on a first side of the substrate, and includes a plurality of first blocking walls and a plurality of first scintillator elements. The plurality of first scintillator elements are located between the plurality of first blocking walls. The second scintillator layer is disposed on a second side of the substrate, and the second side is opposite to the first side. The array layer is located between the first scintillator layer and the second scintillator layer, and has a plurality of photosensitive elements. In addition, a projection of at least one of the plurality of first blocking walls on the substrate overlaps with a projection of at least one of the plurality of photosensitive elements on the substrate.