Fluoroscopy-Based Dose Distribution Detection for Cargo
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Solution Overview
Problem
Current methods for detecting dose distribution within cargo during electron beam irradiation processing are inefficient, costly, and require unpacking, which can lead to irradiation quality issues due to the limited penetration of electron beams.
Innovation Solution
A method and apparatus that use fluoroscopy scanning to obtain mass data per unit area or volume, matching it with a preset mapping model to generate radiation images displaying dose distribution data, allowing for classification and display of mass thickness and electron beam irradiation dose distribution data, and constructing a standard dose distribution model for stereoscopic imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a dosimeter is buried in the cargo for testing dose distribution, then dose distribution data can be obtained, but the process involves low efficiency, high cost and high technical requirements
Solution Approach 1:
The patent creates a virtual copy of the cargo's internal structure using CT scanning technology. Instead of physically inserting dosimeters, the system generates a digital model that can simulate and display dose distribution through software processing, eliminating the need for physical intervention while maintaining measurement capability
Solution Approach 2:
The patent replaces the mechanical/physical system of inserting and reading dosimeters with a non-contact imaging system. CT scanning and software-based dose simulation substitute for physical dosimeter insertion, eliminating manual operations and reducing technical requirements while improving efficiency
2Measurement precision
If a dosimeter is buried in the cargo for testing dose distribution, then dose distribution data can be obtained, but the cost is high
Solution Approach 1:
The patent uses virtual modeling to replace physical dosimeters. By creating a digital representation of the cargo and using software to simulate dose distribution, the system eliminates the need to purchase and deploy expensive physical dosimeter devices, significantly reducing detection costs
Solution Approach 2:
The patent replaces expensive, specialized dosimeter equipment with standard CT scanning technology and software processing. This substitution uses more accessible, lower-cost equipment to achieve the same measurement objective
3Measurement precision
If the cargo is unpacked for dosimeter insertion, then dose distribution can be measured, but irradiation quality may be compromised due to limited electron beam penetration
Solution Approach 1:
The patent performs dose distribution simulation before the actual irradiation process. By using CT scanning to create a virtual model and running dose calculation software in advance, the system determines optimal irradiation parameters beforehand, ensuring quality without compromising the cargo during setup
Solution Approach 2:
The patent creates a virtual copy of the cargo for pre-simulation. This digital model allows dose distribution to be calculated and optimized before real irradiation, eliminating the need to physically access or unpack the cargo and thereby preserving irradiation quality
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 improves the efficiency and accuracy of dose distribution detection, reducing costs and preventing irradiation quality issues by providing intuitive and accurate dose distribution data, enhancing operational efficiency in irradiation processing.
Implementation Method 1
performing a fluoroscopy scanning on the article, to obtain mass data per unit area or unit volume for each point of the article
Implementation Method 2
the preset mapping model includes a mapping relationship between mass per unit area or unit volume and the dose distribution of the article under irradiation of a preset amount of energy
Data Source
AI summary
The present disclosure provides a method and apparatus for detecting a dose distribution of an article. The method includes performing a fluoroscopy scanning on the article to be detected, to obtain mass data per unit area or unit volume for each point of the article to be detected; obtaining corresponding dose distribution data based on the mass data per unit area or unit volume and a preset mapping model, wherein the preset mapping model includes a mapping relationship between mass per unit area or unit volume and the dose distribution of the article under irradiation of a preset amount of energy; and matching the dose distribution data with a fluoroscopy image of the article to be detected, to generate and display a radiation image.