Ray Scanning Imaging Using Multi-Segmental Detector Arrays
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Solution Overview
Problem
Existing radiation imaging apparatuses have low detection efficiency due to limited rotational speed of the ray source and detection arrangement, making it difficult to meet requirements such as a clearance rate of 0.5 m/s for civil aviation goods.
Innovation Solution
The apparatus employs a multi-segmental semi-closed configuration with a plurality of ray generators distributed along a circular arc and linear arrays of ray detectors, allowing for sequential scanning and complete data collection without rotational gantry, using carbon nanotube X-ray generators and dual-layer dual-energy detection units for enhanced imaging efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a rotational gantry system is used for ray scanning, then the apparatus can achieve tomography images through rotation, but the detection efficiency is low due to limited rotational speed
Solution Approach 1:
The detection device is divided into multiple linear arrays of ray detectors arranged in a multi-segmental semi-closed configuration. Each linear array can independently detect rays, allowing parallel data acquisition from multiple angles simultaneously, thereby eliminating the need for slow rotational scanning while maintaining comprehensive detection capability.
Solution Approach 2:
The patent transitions from a single rotational scanning approach to a multi-dimensional array configuration. By arranging multiple linear arrays in a semi-closed frame, the system captures ray data from multiple spatial dimensions simultaneously, achieving rapid comprehensive detection without rotational movement.
2Loss of time
If multiple linear arrays of ray detectors are used in a multi-segmental semi-closed configuration, then inspection time is reduced, but device complexity increases
Solution Approach 1:
The detection device is segmented into multiple linear arrays that can be independently positioned and configured. This segmentation allows each array to capture data from specific angular ranges, enabling parallel processing and reducing total inspection time while maintaining manageable complexity through modular design.
Solution Approach 2:
Instead of rotating the detection device to achieve multi-angle coverage, the patent inverts the approach by arranging multiple stationary linear arrays to simultaneously cover different angular ranges. This eliminates rotational mechanics and reduces inspection time while the modular array structure keeps device complexity manageable.
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 configuration significantly reduces inspection time, provides higher quality images, and minimizes the influence of shielding, while reducing costs and maintaining high performance, effectively addressing the limitations of prior art radiation imaging systems.
Implementation Method 1
radiation imaging apparatus has been widely utilized... scanning of the object to be inspected is carried out by the ray beams emitted from the radiation source. The ray beams pass through the object to be inspected, and are received by the ray collection device... principles of exponential ray attenuation
Data Source
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AI summary
The present invention discloses apparatus and method for ray scanning imaging. The apparatus comprises a plurality of ray generators and a ray detection device. The plurality of ray generators are arranged uniformly along a circular arc and emit ray beams in sequence or simultaneously to an object to be inspected within a single scanning period. The ray detection device may be either in a multi-segmental semi-closed configuration composed of a plurality of linear arrays of ray detectors or in a circular arc configuration where a plurality of ray detection units arranged uniformly along a circular arc. During the inspection, the apparatus is advantageous in obtaining the complete ray projection values without rotation thereof, so as to effectively shorten the inspection time.