Scintillator Panel with Multi-Layer Phosphor Concentration
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Solution Overview
Problem
Conventional scintillator panels face challenges in achieving high image clarity and sufficient light emission due to light scattering within the scintillator layer, and the use of barrier ribs to mitigate this issue reduces overall light emission.
Innovation Solution
A scintillator panel design featuring a substrate with a barrier rib and a scintillator layer composed of multiple layers with varying phosphor concentrations, including a high concentration layer and a light-transmitting layer, to effectively suppress light scattering and enhance light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a barrier rib is formed to divide the scintillator layer, then image clarity is improved, but the amount of emitted light is reduced
Solution Approach 1:
The patent applies local quality by creating distinct regions within the scintillator layer with different phosphor concentrations. The first region has a higher phosphor concentration optimized for light emission, while the second region has a lower phosphor concentration optimized for reducing light scattering. This spatial differentiation allows each region to perform its specialized function, resolving the contradiction between emitting sufficient light and maintaining image clarity.
2Illumination intensity
If the thickness of the scintillator layer is increased to obtain more emitted light, then the amount of emitted light increases, but light scattering within the layer increases
Solution Approach 1:
Rather than uniformly increasing thickness, the patent divides the scintillator layer into regions with different phosphor concentrations. The first region with higher concentration compensates for light absorption, while the second region with lower concentration allows light to pass through with minimal scattering, thus maintaining image clarity even with increased overall thickness.
Solution Approach 2:
The scintillator layer functions as a composite structure with two distinct regions having different phosphor concentrations. This composite approach allows the layer to simultaneously achieve high light emission (through the high-concentration region) and low light scattering (through the low-concentration region), resolving the contradiction between these two opposing requirements.
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 proposed design achieves improved image clarity and sufficient light emission by reducing light scattering within the scintillator layer while maintaining a high amount of emitted light, resulting in high-definition images.
Implementation Method 1
a scintillator layer containing a phosphor filling cells divided by the barrier rib, wherein the scintillator layer is formed of a plurality of layers having different phosphor concentrations
Data Source
AI summary
The present invention is a scintillator panel including: a substrate, a barrier rib formed on the substrate, and a scintillator layer containing a phosphor filling cells divided by the barrier rib, wherein the scintillator layer is formed of a plurality of layers having different phosphor concentrations. The present invention provides a scintillator panel in which formation of the barrier rib makes it possible to improve image clarity and obtain a sufficient amount of emitted light.