Terrain Radiation Mapping via Mobile Gamma Probe and Real-Time Modeling
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Solution Overview
Problem
Current methods for measuring radioactive radiation in open terrain are either inaccurate, require manual exploration, or involve post-flight data evaluation, lacking real-time quantification and safety in identifying radiation sources.
Innovation Solution
A method utilizing a carrier platform equipped with a gamma probe that travels over the terrain, recording radioactivity measurements, calculating radiation values, determining source positions, and outputting results in a two-dimensional graphic, incorporating terrain modeling and nuclide identification for accurate and safe radiation mapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual exploration with protective clothing is used, then safety of personnel is improved, but measurement time and operational efficiency deteriorate
Solution Approach 1:
The patent replaces manual mechanical exploration with an automated carrier platform system that travels over the terrain and performs measurements automatically. The carrier platform (vehicle or aircraft) equipped with radiation detectors eliminates the need for personnel to physically traverse contaminated areas, thereby maintaining safety while dramatically improving measurement efficiency and productivity.
Solution Approach 2:
The system performs self-service through automated data collection, processing, and evaluation. The carrier platform automatically records radiation measurements, the computer model autonomously evaluates the data in real-time, and the system self-corrects for background radiation and terrain effects without requiring manual intervention, thus improving both safety and operational speed.
2Reliability
If helicopter flight measurement is used, then safety of personnel is improved, but measurement accuracy and real-time capability deteriorate
Solution Approach 1:
The patent implements real-time feedback through a computer model that continuously processes radiation measurements during carrier platform movement. The system provides immediate evaluation of dose rates, allowing operators to adjust flight paths or spending time in specific areas based on real-time data, thereby improving measurement accuracy while maintaining safety advantages of aerial surveying.
Solution Approach 2:
The system performs preliminary actions by pre-programming flight paths and measurement parameters before the survey begins. The computer model is pre-configured with terrain data and radiation safety thresholds, enabling automated real-time evaluation during flight without requiring post-flight data processing, thus improving both accuracy and operational efficiency.
3Ease of operation
If post-flight data evaluation is used, then operational simplicity is improved, but response time and real-time capability deteriorate
Solution Approach 1:
The patent implements real-time feedback through continuous computer model evaluation during the survey flight. Radiation measurements are processed immediately as they are collected, providing real-time dose rate maps and contamination assessments. This eliminates post-flight data processing delays while maintaining operational simplicity through automated system operation.
Solution Approach 2:
The system maintains continuous useful action by performing data evaluation throughout the entire survey process rather than as a separate post-flight step. The computer model continuously processes measurements, corrects for background radiation, and generates real-time results, ensuring that no time is lost between data collection and analysis while keeping the operational流程 simple and automated.
4Device complexity
If basic radiation detection is used, then device complexity is reduced, but measurement reliability and source localization capability deteriorate
Solution Approach 1:
The patent employs parameter changes by analyzing multiple radiation parameters simultaneously (dose rate, spectral characteristics, angular distribution) rather than relying on a single measurement. The computer model processes these varied parameters to accurately identify radiation sources and differentiate them from background radiation, improving reliability without requiring excessively complex hardware.
Solution Approach 2:
The carrier platform system serves multiple functions: it performs radiation measurements, navigates autonomously or semi-autonomously, processes data in real-time, corrects for terrain and background effects, and generates visualizations. This multi-functionality achieves high measurement reliability and source localization capability while keeping individual component complexity manageable through integrated system design.
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
Enables real-time, accurate, and safe quantification of radiation levels in open terrain, improving safety and efficiency by providing immediate data visualization and source localization, reducing personnel risk and operational costs.
Implementation Method 1
radioactivity measurements are recorded with a gamma probe
Data Source
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AI summary
Method for measuring the dose rates of radioactive surfaces on the ground of a terrain in real time - with a carrier platform on which a gamma probe is mounted, - wherein the carrier platform is suitable for traversing or flying over the terrain, wherein (a) - a terrain model for the terrain and - a model of the background radiation of the terrain are provided and - at least one type of nuclide that could be located in the terrain is specified, (b) whereupon the carrier platform traverses or flies over a part of the terrain during a traversal, and (c) during this time radioactivity measurements are recorded by means of the gamma probe and (d) the radioactivity measurements are entered into a computational model in which radiation values are calculated taking into account the background radiation and an assignment of the calculated values to terrain points is carried out.(e) wherein coordinates of radiation maxima are determined from the radioactivity measurements by applying the computational model, and (f) based on this, one or more source positions are calculated, and wherein (g) in parallel, objects of the terrain model are classified into classes, and (h) based on the nuclide type of the sources and the objects surrounding the source(s), quantitative radiation values are calculated for areas of the terrain, and (i) the result is output in the form of a two-dimensional graphic representing the terrain and recording the determined radiation values.