Scintillator Panel Barrier Structure for Moisture Resistance Handling
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Solution Overview
Problem
Existing scintillator panels face challenges in ensuring both moisture resistance and handleability, with the surface of the metal thin film layer being exposed and affecting ease of handling.
Innovation Solution
A scintillator panel design featuring a first flexible support body with a scintillator layer, a second flexible support body, and an inorganic layer interposed between them, protected by a protective layer, ensuring moisture resistance and handleability through adhesive bonding and controlled thicknesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal thin film layer is provided on the support body to improve moisture resistance, then moisture resistance is improved, but the exposed surface of the metal thin film layer reduces handleability
Solution Approach 1:
The patent introduces a protective film as an intermediary layer between the metal thin film layer and the external environment. This protective film covers the exposed surface of the metal thin film layer, preventing direct contact during handling while maintaining the moisture barrier function of the metal layer beneath.
Solution Approach 2:
The patent employs a protective film that forms a flexible protective shell over the metal thin film layer. This thin film structure provides physical protection during handling operations while remaining transparent to the moisture-blocking function of the underlying metal layer.
2Reliability
If an inorganic layer is provided on the second flexible support body to suppress moisture infiltration, then moisture resistance is improved, but the inorganic layer may deteriorate due to contact during handling if exposed
Solution Approach 1:
The patent introduces a protective film as an intermediary layer between the inorganic layer and the external environment. This protective film covers the exposed surface of the inorganic layer, preventing direct contact during handling while maintaining the moisture barrier function of the inorganic layer beneath.
Solution Approach 2:
The patent employs a protective film that forms a flexible protective shell over the inorganic layer. This thin film structure provides physical protection during handling operations while remaining transparent to the moisture-blocking function of the underlying inorganic layer.
3Reliability
If the inorganic layer is made thicker to improve moisture resistance, then moisture resistance is improved, but radiolucency may be compromised
Solution Approach 1:
The patent employs a composite structure consisting of multiple layers including the inorganic layer, flexible support bodies, and protective film. This composite design allows optimization of each layer's thickness and material properties to simultaneously achieve moisture resistance and radiolucency, avoiding the need for excessive inorganic layer thickness.
Solution Approach 2:
The patent uses thin film structures for the protective film and flexible support bodies that provide moisture barrier functionality while maintaining transparency to radiation. These thin film layers allow the inorganic layer to be kept at optimal thickness for moisture resistance without compromising radiolucency.
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 design improves moisture resistance and maintains handleability by protecting the inorganic layer from contact and infiltration, while ensuring radiolucency and reducing warpage.
Implementation Method 1
the inorganic layer suppresses moisture infiltration from the second surface side into the scintillator layer via the first flexible support body
Implementation Method 2
a phosphor layer converting radiation into light
Implementation Method 3
a first adhesive layer bonding the second surface and the inorganic layer to each other
Data Source
Figure 1
Figure 2(a)~2(c)
Figure 3(a)~3(b)
AI summary
A scintillator panel includes: a first flexible support body having a first surface and a second surface on a side opposite to the first surface; a scintillator layer formed on the first surface and containing a plurality of columnar crystals; a second flexible support body provided on the second surface; an inorganic layer provided on the second flexible support body so as to be interposed between the second surface and the second flexible support body; and a first adhesive layer bonding the second surface and the inorganic layer to each other. A radiation detector includes: the scintillator panel; and a sensor panel including a photoelectric conversion element, in which the scintillator panel is provided on the sensor panel such that the first surface is on the sensor panel side with respect to the second surface.