Flat Panel Detector Dual-Energy X-Ray Absorbing Layers
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Solution Overview
Problem
Current flat panel detectors in digital medical imaging lack compatibility for detecting both high and low energy X-rays, limiting their application in dual-energy silhouette detection, as they are not designed to distinguish between different photon energies and cannot perform dual-energy detection with a single exposure.
Innovation Solution
A flat panel detector design featuring two absorbing layers with different energy absorption levels, where the second absorbing layer has a lower energy absorption level than the first, allowing for dual-energy detection by generating distinct signals for high and low energy rays, enabling compatibility with both high and low energy applications and facilitating dual-energy silhouette detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single absorbing layer is used in the flat panel detector, then the device structure remains simple, but it cannot distinguish between different photon energies and lacks compatibility for dual-energy detection
Solution Approach 1:
The detector is divided into two distinct absorbing layers: a first absorbing layer for high-energy X-rays and a second absorbing layer for low-energy X-rays. Each layer is independently configured with separate voltage supply electrode structures and output circuits, enabling independent detection and signal processing for different energy ranges, thus achieving dual-energy detection capability
Solution Approach 2:
The patent transitions from a single-layer detection approach to a multi-layer stacked configuration, adding the dimension of energy discrimination. By arranging absorbing layers with different energy absorption characteristics in sequence, the detector gains the ability to distinguish photon energies while maintaining a compact flat panel structure
2Adaptability or versatility
If multiple absorbing layers with different energy levels are added, then dual-energy detection capability is achieved, but the device structure and circuit complexity increase
Solution Approach 1:
The patent merges the detection functions for different energy levels into a single integrated flat panel detector structure. Multiple absorbing layers are stacked and combined with shared base substrates and integrated circuit boards, allowing dual-energy detection within one unified device rather than requiring separate detectors
Solution Approach 2:
The flat panel detector is designed with multi-functional capability by incorporating both high-energy and low-energy detection functions in a single device. The detector can perform standard single-energy imaging and dual-energy silhouette detection, making it universally applicable to various medical imaging scenarios
3Adaptability or versatility
If a laminated structure with multiple absorbing layers is used, then dual-energy detection is enabled, but manufacturing precision requirements increase
Solution Approach 1:
The patent incorporates preliminary positioning structures during the manufacturing process, including pre-formed through-holes, alignment marks, and predetermined electrode patterns in the base substrate. These preliminary structures guide the precise placement and lamination of subsequent absorbing layers and electrode structures, ensuring accurate alignment before final assembly
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 detector achieves high compatibility and convenience in dual-energy silhouette detection by accurately distinguishing and processing signals from both high and low energy rays, enhancing its applicability in various medical imaging tasks.
Implementation Method 1
a first absorbing layer and a second absorbing layer, wherein the first absorbing layer and the second absorbing layer are arranged on the base substrate in a laminating manner... an energy level of rays absorbed by the second absorbing layer is smaller than that of rays absorbed by the first absorbing layer
Data Source
AI summary
The present disclosure provides a flat panel detector and a medical image detection device. The flat panel detector includes a base substrate, wherein the base substrate is divided into a plurality of detection units, each detection unit includes a first absorbing layer and a second absorbing layer, both of which are arranged on the base substrate in a laminating manner, the second absorbing layer is located on one side, away from the base substrate, of the first absorbing layer, and an energy level of rays absorbed by the second absorbing layer is smaller than that of rays absorbed by the first absorbing layer; a voltage supply electrode structure; and an output circuit, electrically connected to the voltage supply electrode structure and configured to output a first detection signal of the first absorbing layer and a second detection signal of the second absorbing layer.