X-ray Detector Glass Shielding for Industrial Tomography
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Solution Overview
Problem
Industrial X-ray workpiece measuring systems face challenges in reducing testing time while maintaining high radiation density and image resolution, as increased X-ray output leads to radiation exposure and degradation of detector components, and existing solutions either fail to effectively absorb X-rays or result in bulky, heavy systems with image defects.
Innovation Solution
An X-ray detector device with a multi-layer glass body for X-ray protection, where the first layer has high X-ray absorption and resistance to degradation, and the second layer optimizes visible light transmission, combined with regeneration means using short-wave light radiation to prevent material degradation, allowing for efficient X-ray protection and maintenance-free operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If X-ray output is increased to reduce measuring time, then productivity improves, but radiation exposure and degradation of detector components worsens
Solution Approach 1:
A glass body is introduced as an intermediary component between the scintillator means and optical detector means. This glass body absorbs residual X-ray radiation that passes through the scintillator, preventing it from reaching and degrading the optical detector means. The glass body is transmissive to visible light generated by the scintillator, allowing the detector to function normally while being protected from harmful X-ray exposure.
Solution Approach 2:
The X-ray protection function is segmented from the main detector components. Instead of making the entire detector assembly radiation-resistant, only a specific glass body component is designed to provide X-ray absorption. This segmentation allows the optical detector means to remain sensitive and responsive while being protected by the dedicated glass body shield.
2Object-affected harmful factors
If lead glass is used for X-ray protection, then X-ray absorption improves, but visible light transmission and system weight worsen
Solution Approach 1:
The patent changes the material parameters by using glass bodies with optimized composition and thickness. Instead of traditional thick lead glass, the invention uses glass bodies with specific thickness ranges (e.g., 1-10 mm) and compositions that balance X-ray absorption capability with visible light transmission. This parameter optimization allows sufficient X-ray protection while maintaining high visible light transmission for detector operation.
3Object-affected harmful factors
If glass body thickness is increased for better X-ray absorption, then X-ray protection improves, but visible light transmission and system weight worsen
Solution Approach 1:
The patent optimizes the thickness parameter of the glass body to achieve the minimum required protection level. By calculating and specifying optimal thickness ranges, the invention avoids excessive material usage while ensuring sufficient X-ray absorption. This parameter optimization reduces the weight of the glass body compared to traditional thicker designs.
4Productivity
If distance between X-ray source and detector is reduced to increase ray density, then productivity improves, but radiation exposure to detector components worsens
Solution Approach 1:
The glass body serves as a protective intermediary positioned between the scintillator means and optical detector means. This intermediary absorbs harmful residual X-ray radiation while allowing visible light to pass through, enabling the detector to operate at shorter distances from the X-ray source without suffering from excessive radiation exposure.
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 solution enables high radiation density use at short distances, reducing measuring time and maintaining high image resolution, while also achieving a compact and lightweight design, minimizing maintenance costs and image defects, and enhancing system mobility.
Implementation Method 1
a glass body having X-ray-absorbing properties while being transmissive to visible light
Implementation Method 2
the modules of the X-ray detector device, which itself is composed of what is referred to as the scintillator means for converting incident X-rays into visible light
Implementation Method 3
optical detector means, at which visible light is ultimately converted into an electronic image signal
Implementation Method 4
regeneration means which are configured to introduce short-wave light radiation into the body and thereby prevent material degradation
Data Source
AI summary
The invention relates to an X-ray detector device for industrial measurement of workpieces by X-ray, having scintillator means (12) for converting incident X-rays of the X-ray radiation passing through a workpiece being measured into visible light at a scintillator light exit surface (14), optical detector means (22; 24, 26) optically downstream of the scintillator means, for converting the visible light at the scintillator light exit surface into an electronic image signal, and X-ray protection means (18, 20; 18′, 20′; 18″, 20″) which are provided in an optical beam path between the scintillator means and the optical detector means and have a body, in particular a glass body, that is transparent to visible light and has X-ray absorbing properties.