X-ray detector protective element and adhesive containment
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Solution Overview
Problem
Current X-ray detectors lack effective mechanical protection, which can lead to the release of hazardous fragments or dust from converter materials like CdTe, CZT, CdZnTeSe, CdTeSe, and CdMnTe during mechanical damage, posing health risks and environmental contamination.
Innovation Solution
An X-ray detector design featuring an anti-scatter grid with a protective element and an adhesive element that encloses the converter elements, preventing particle escape by creating a sealed area between the anti-scatter grid and the electrodes, utilizing a thin foil or adhesive tape to ensure containment and adherence of particles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no protective element is used, then the device complexity is reduced, but the converter element is vulnerable to mechanical damage and particle release
Solution Approach 1:
The protective element is integrated into the stacking arrangement by nesting it between the anti-scatter grid and the converter element, creating a compact enclosed area that protects the converter element without adding external complexity to the overall device structure
Solution Approach 2:
The protective element functions as a thin film or foil that encloses the converter element laterally, providing mechanical protection and preventing particle release while maintaining a compact structure that does not significantly increase device complexity
2Object-generated harmful factors
If a protective element is added, then particle release is prevented, but the device complexity increases
Solution Approach 1:
The protective element is nested within the existing stacking arrangement between the anti-scatter grid and converter element, creating an enclosed area that prevents particle release to the environment while integrating seamlessly into the existing device structure
Solution Approach 2:
A thin film protective element is used to enclose the converter element laterally, providing effective particle containment while maintaining minimal structural complexity and space within the detector module
3Object-generated harmful factors
If an enclosed area is created, then particle containment is improved, but the manufacturing complexity increases
Solution Approach 1:
The protective element is positioned and secured in place before final assembly steps, with the adhesive element applied to ensure proper positioning, allowing the enclosed area to be formed as part of the standard manufacturing process rather than requiring post-assembly modifications
4Object-generated harmful factors
If adhesive element is used, then particle adherence is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The adhesive element is applied as a thin film or layer on the protective element, providing effective particle adherence through its tacky surface while allowing for tolerant placement that does not require extreme manufacturing precision
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 design effectively prevents the escape of particles and dust from the converter material, ensuring environmental safety, maintaining image quality, and adhering to regulatory standards by encapsulating the converter elements within a protective and adhesive barrier.
Implementation Method 1
An adhesive element is arranged between the anti-scatter grid and the electrode
Implementation Method 2
The protective element extends in the stacking direction such that an enclosed area is at least arranged between the anti-scatter grid and the converter element
Data Source
AI summary
An X-ray detector includes an anti-scatter grid, an electrode and a converter element for converting X-rays into electrical charges in a stacking arrangement. In an embodiment, the stacking arrangement is externally enclosed by a protective element. The protective element extends in the stacking direction such that an enclosed area is at least arranged between the anti-scatter grid and the converter element and along the entire height of the converter element in the stacking direction. An adhesive element is arranged between the anti-scatter grid and the electrode.