Radiation Source Location Detection Using Segmented Scintillators
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Solution Overview
Problem
Current radiation detection systems are unable to operate in high-temperature environments, making it difficult to accurately detect radiation leakage and determine the location of radiation sources in nuclear reactors, which is crucial for real-time monitoring and safety during severe nuclear accidents.
Innovation Solution
A system comprising a collimator unit, a scintillator unit, first and second optical sensors, and a location information acquisition unit, which converts radiation into light signals and uses these signals to determine the location of radiation leakage, even in high-temperature environments, by employing materials like Gd2SiO5:Ce, Pr:Lu3Al5O12, and halide-based scintillators, and includes cooling and wavelength shifting components to maintain functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current radiation detection systems are used in high-temperature environments, then the system can detect radiation leakage, but the system cannot accurately determine the location of radiation sources and cannot operate reliably
Solution Approach 1:
The patent changes the material parameters of the scintillator to use high-temperature stable materials such as Gd2SiO5:Ce, Pr:Lu3Al5O12, and halide-based scintillators that maintain their scintillation properties at temperatures up to 700°C, allowing the detection system to operate reliably in high-temperature nuclear reactor environments
Solution Approach 2:
The patent employs composite scintillator materials combining rare earth elements with specific crystal structures to create a detection system that maintains both high radiation detection efficiency and thermal stability in high-temperature conditions
2Measurement precision
If current radiation detection systems are used in high-temperature environments, then the system can detect radiation leakage, but the system cannot accurately determine the location of radiation sources
Solution Approach 1:
The patent divides the scintillator into multiple segmented sections with dedicated optical sensors positioned at different locations, allowing precise determination of the radiation source position by analyzing which segment detects the radiation first and with what intensity, enabling accurate location determination even in high-temperature environments
Solution Approach 2:
The patent introduces optical sensors as intermediaries between the scintillator and the detection system, converting the scintillation light into electrical signals that can be processed to determine the precise location of radiation sources through timing and intensity analysis of the optical signals
3Productivity
If real-time detection of radiation leakage is implemented in high-temperature environments, then safety monitoring can be improved, but existing systems cannot operate under these conditions
Solution Approach 1:
The patent changes the operational temperature range parameter of the detection system by selecting scintillator materials and optical components that function reliably at temperatures up to 700°C, enabling real-time radiation leakage detection in the high-temperature environment of nuclear reactor cores during severe accidents
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 accurate real-time monitoring of radiation leakage and damage detection in nuclear reactors, offering improved accuracy and cost-effectiveness compared to prior systems, while being suitable for high-temperature conditions.
Implementation Method 1
a scintillator unit converting the incident radiation from the collimator unit into light
Implementation Method 2
a first optical sensor converting the incident light from one end of the scintillator unit into a first optical signal; a second optical sensor converting the incident light from the other end of the scintillator unit into a second optical signal
Data Source
AI summary
The present invention relates to an apparatus for determining the location of a radiation source. The apparatus for determining the location of a radiation source according to the present invention comprises: a collimator part for selectively passing radiation therethrough according to the direction in which the radiation is incident; a scintillator part for converting the radiation incident from the collimator part into a light ray; a first optical sensor for converting the light ray incident from one end of the scintillator part into a first optical signal; a second optical sensor for converting the light ray incident from the other end of the scintillator part into a second optical signal; and a location information acquisition part for acquiring information on the location where the light ray is generated in the scintillator part, by using the second optical signal and the second optical signal.