Liquid Detection via Combined CT and XRD Imaging
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Solution Overview
Problem
Current liquid detection techniques face challenges such as low detection efficiency, high costs, and complex operations due to weak XRD signals and the need for multiple detectors and radiation sources, leading to a lack of small-scale, high-efficiency, and cost-effective systems for liquid substance identification.
Innovation Solution
A method and system combining CT imaging and XRD imaging using a primary collimator and scattering collimator, where X-rays from a single radiation source scan entire liquid planes, allowing for simultaneous CT and XRD detection on the same or different planes, enhancing signal strength and reducing system complexity and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple detectors and radiation sources are used to improve detection accuracy, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines CT imaging and XRD imaging into a single integrated system that uses one radiation source and one detector. The detector simultaneously captures both transmission information (for CT) and scattered X-ray information (for XRD), eliminating the need for separate detection systems while maintaining substance identification accuracy through the complementary nature of the two imaging modes.
Solution Approach 2:
The single detector is designed to perform multiple functions: it detects transmitted X-rays for CT imaging and scattered X-rays for XRD imaging. The system achieves multi-functionality by processing different types of X-ray signal information from the same detector, allowing both structural and compositional analysis without requiring specialized detectors for each mode.
2Productivity
If multiple radiation sources are used to improve detection efficiency, then productivity is improved, but device complexity and cost increase
Solution Approach 1:
The system achieves continuous detection by having the single radiation source emit X-rays that are simultaneously utilized for both CT and XRD imaging modes. The detector continuously captures both transmission and scattered signal information throughout the scanning process, eliminating idle time between different imaging modes and maintaining productive action throughout the entire measurement period.
Solution Approach 2:
The patent merges the functions of multiple radiation sources into a single source that serves both CT and XRD imaging needs. By combining the radiation generation function into one source and using signal processing to separate the useful information for each imaging mode, the system maintains detection efficiency without the complexity of multiple sources.
3Measurement precision
If traditional separate CT and XRD systems are used, then measurement precision is maintained, but loss of time increases due to sequential imaging
Solution Approach 1:
The system eliminates time loss by implementing continuous simultaneous imaging where the detector captures both CT transmission data and XRD scattered signal data during the same scanning operation. There is no sequential switching between imaging modes - both types of information are acquired continuously and concurrently, dramatically reducing the total detection time while preserving the precision of both imaging modalities.
4Device complexity
If a single radiation source is used for both CT and XRD, then device complexity is reduced, but measurement precision may deteriorate due to signal interference
Solution Approach 1:
The system segments the X-ray signal information detected by the single detector into distinct CT transmission components and XRD scattered signal components through signal processing. By separating and independently processing the different types of information from the combined detection data, the system maintains the precision of both imaging modes while using a simplified single-source configuration.
Solution Approach 2:
The patent introduces signal processing as an intermediary that separates and processes the mixed X-ray information from the single detector. This intermediary processing step extracts and analyzes transmission information for CT and scattered signal information for XRD independently, preventing signal interference from degrading measurement precision while allowing the use of a single radiation source.
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 enables quick and accurate identification of substances in liquids by combining CT and XRD images, improving detection efficiency and reducing system size and costs, while maintaining high-quality results.
Implementation Method 1
X-rays from a same radiation source scan a whole area of each of the one or more liquid planes
Implementation Method 2
substances of different molecular structures may have different X-ray diffraction (XRD) patterns
Implementation Method 3
a primary collimator and a scattering collimator used in the system for liquid detection are provided
Data Source
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AI summary
Method and system for liquid detection are disclosed. The method for liquid detection includes: implementing CT imaging and XRD imaging on one or more liquid planes of liquid contained in a container at once by rotating the container so that X-rays from a same radiation source scan a whole area of each of the one or more liquid planes; and generating a substance identification result for the liquid contained in the container based on a CT image and a XRD image, wherein the CT imaging and the XRD imaging are implemented on a same liquid plane or different liquid planes. The invention may identify substances contained in the liquid more quickly and accurately. (Fig. 1)