Radiation Detection System Using Waveform Pattern Recognition
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Solution Overview
Problem
In radiation detection systems, low-intensity radiation output from portable devices is difficult to discriminate from noise, leading to delayed recognition of radiation start, especially in low-exposure settings like hospitals and patient rooms.
Innovation Solution
A radiation detection system that uses a radiation output device with a preset waveform pattern for radiation output, allowing the detection device to accurately recognize the start of radiation emission by identifying specific pulse patterns, intensities, and timing, enabling clear discrimination from noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If low-intensity radiation is output from portable radiation output device, then radiation exposure in surroundings is suppressed, but radiation is difficult to discriminate from noise when detected by radiographic image detector
Solution Approach 1:
The patent applies periodic action by outputting radiation in a pulsed waveform pattern with specific intervals rather than continuous emission. The radiation output unit generates radiation pulses with predetermined timing and intensity patterns that create recognizable detection signals. This periodic pulsing allows the detection device to distinguish radiation from background noise through pattern recognition, while maintaining low overall exposure doses.
Solution Approach 2:
The patent utilizes parameter changes by varying radiation intensity dynamically according to a predetermined waveform pattern. The output control unit adjusts radiation intensity parameters over time, creating distinct temporal patterns (e.g., pulse widths, intervals, amplitude modulations) that enable the detection device to differentiate radiation signals from noise through parameter analysis, while keeping average intensity low to reduce exposure.
2Object-affected harmful factors
If radiation with low intensity is output, then radiation exposure is reduced, but it takes time until the start of outputting of radiation is recognized
Solution Approach 1:
The radiation output unit emits radiation in periodic pulses with specific temporal patterns rather than continuous low-intensity emission. These pulses have characteristic widths and intervals that create distinct detection signatures, enabling rapid recognition of radiation start by the detection device's pattern recognition algorithm, thus reducing recognition time while maintaining low overall exposure.
Solution Approach 2:
The system performs preliminary action by outputting a recognizable waveform pattern (such as a specific pulse sequence or intensity modulation) at the very start of radiation emission. This preliminary patterned emission serves as a detection marker that allows the detection device to immediately recognize radiation start without waiting for accumulated signal, reducing recognition delay while keeping total exposure low.
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
The system ensures accurate and timely detection of radiation start, reducing noise interference and minimizing radiation exposure by using a recognizable waveform pattern for synchronization, thereby improving the reliability of radiation detection.
Implementation Method 1
a radiation generation unit that generates radiation
Implementation Method 2
a radiographic image detector such as an FPD (Flat Panel Detector) that detects radiation output from the radiation output device and transmitted through a patient
Data Source
AI summary
The present disclosure provides a radiation detection system, a radiation output device, and a radiation detection device. The radiation detection system includes a radiation output device having a radiation generation unit and an output control unit that controls output of radiation, and a radiation detection device having a radiographic image detector that detects radiation output from the radiation output device, and a recognition unit that recognizes whether radiation has been output from the radiation output device on the basis of a radiation detection signal output from the radiographic image detector. The output control unit causes radiation with a preset waveform pattern to be output from a time point of the start of outputting of the radiation, and the recognition unit recognizes the waveform pattern, thereby recognizing the start of outputting of the radiation.