Resin-Coated Substrate for Radiation Detector Scintillator Deposition
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Solution Overview
Problem
Existing radiation detector manufacturing processes are inefficient and costly due to the need for extensive substrate surface processing and tailored methodologies for different substrates, which can lead to performance degradation and limited compatibility with various scintillator materials.
Innovation Solution
A resin coating is applied to the substrate, providing a uniform binding surface for scintillator deposition and acting as a protective layer against physical, mechanical, and chemical stress, allowing for the use of various substrates and scintillator compositions without extensive processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If extensive substrate surface processing is performed prior to scintillator deposition, then scintillator performance and detector reliability are improved, but manufacturing time and cost increase significantly
Solution Approach 1:
The patent applies preliminary action by depositing the scintillator material onto a suspended substrate before any surface processing is performed. This reverses the conventional sequence where surface processing precedes deposition. The substrate is first cleaned in-situ, then the scintillator is deposited, and only then is the substrate released and subjected to surface processing. This eliminates the need for extensive pre-processing while maintaining scintillator performance.
2Reliability
If extensive substrate surface processing is performed, then scintillator performance is improved, but manufacturing cost increases
Solution Approach 1:
The invention performs scintillator deposition on suspended substrates before release, eliminating the need for costly pre-deposition surface processing. The substrate is cleaned in-situ in the deposition chamber, the scintillator is deposited directly, and then the substrate is released for post-deposition processing. This sequence elimination significantly reduces manufacturing costs while maintaining performance.
3Reliability
If substrate-specific tailored fabrication methodologies are used, then detector performance is optimized for each substrate type, but device complexity and manufacturing time increase
Solution Approach 1:
The patent implements universality by using a standardized fabrication sequence that works across multiple substrate types. All substrates undergo the same process: in-situ cleaning, scintillator deposition on suspended substrate, release, and post-processing. This universal approach eliminates the need for substrate-specific tailored methodologies, reducing device complexity while maintaining optimized performance for each substrate type.
4Use of energy by moving object
If reflective coating is applied to substrate prior to scintillator deposition, then light reflection efficiency is improved, but chemical corrosion and performance degradation occur
Solution Approach 1:
The invention reverses the sequence by depositing the scintillator on the suspended substrate before applying any reflective coatings. The substrate is released and coated with reflective material after the scintillator is already in place. This prevents direct contact between the scintillator and reflective coating materials, eliminating chemical corrosion while preserving light reflection efficiency.
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
This approach standardizes the scintillator deposition process, reduces manufacturing costs, and enhances detector durability and performance by preventing degradation and chemical interactions, enabling efficient production across different substrates and scintillator materials.
Implementation Method 1
The resin coating is of a composition and design such that when the resin coating of the appropriate thickness is deposited on a surface of the substrate, the resin will adhere to the substrate surface and provide a binding surface onto which scintillator layer or other material may be deposited
Implementation Method 2
scintillators work by converting energetic photons such as X-rays, gamma-rays, and the like, into a more easily detectable signal (e.g., visible light)
Implementation Method 3
the resin coating can have properties such that layers adjacent to the resin coating (e.g., substrate, scintillator, etc.) gain protection from damage and/or degradation due, for example, to physical, mechanical, or chemical stress
Data Source
AI summary
The present invention provides radiation detectors and related methods, including methods of making radiation detectors and devices, as well as methods of performing radiation detection. A radiation detector includes a first resin coating formed on at least a surface of the substrate and an additional layer, such as a scintillator layer, formed on the resin coating.