2D Radiation Display Device for Rapid Contamination Mapping
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Solution Overview
Problem
In nuclear power plant accident scenarios, it is challenging to efficiently identify and decontaminate areas contaminated with radioactive materials due to the time-consuming nature of existing dosimeter technologies, especially in low air dose environments.
Innovation Solution
A two-dimensional radiation display device that processes radiation detection signals from a two-dimensional array of detectors to quickly identify contaminated areas by converting, dividing, integrating, and synthesizing radiation data for efficient display of radiation distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a two-dimensional radiation display device is used to identify contaminated areas, then the efficiency of decontamination is improved, but it takes a lot of time to find out the contaminated part in low air dose environments
Solution Approach 1:
The patent divides the two-dimensional radiation data into multiple directional sections (e.g., upper, lower, left, right, and diagonal directions) and processes each section separately. This segmentation allows the system to integrate radiation data along specific directions, enhancing the visibility of contaminated areas while reducing the time required for identification in low air dose environments.
Solution Approach 2:
The patent transforms two-dimensional radiation distribution data into directional projection data by integrating along specific directions. This dimensional transformation converts the problem from analyzing a two-dimensional map to analyzing one-dimensional directional profiles, making it easier and faster to identify contaminated regions even when radiation levels are low.
2Loss of information
If radiation detectors are arranged in a two-dimensional array to obtain two-dimensional radiation intensity distribution data, then the radiation distribution can be visualized, but it takes a lot of time to process and analyze the data
Solution Approach 1:
The patent extracts directional information from two-dimensional radiation data by dividing it into specific directional sections. Instead of processing the entire two-dimensional dataset, the system extracts and integrates data along predetermined directions, reducing computational complexity and processing time while preserving essential radiation distribution information.
Solution Approach 2:
The patent performs dimensional reduction by projecting two-dimensional radiation data onto one-dimensional directional lines. This transformation simplifies the data structure, enabling faster processing and analysis while maintaining the ability to identify contaminated areas through directional integration.
Data Source
AI summary
A two-dimensional radiation display device includes: a data acquisition unit that acquires two-dimensional radiation data detected a plurality of times from a plurality of radiation detectors; a data division processing unit that divides the two-dimensional radiation data into data regions of each section of specified direction; an integration processing unit that integrates the two-dimensional radiation data that is detected a plurality of times, for each section of specified direction; a data synthesis processing unit that synthesizes the integration values integrated for each section of specified direction into two-dimensional data including radiation distribution; and an image output unit that outputs two-dimensional data indicating radiation distribution as display data in accordance with a prescribed display format.