Radiation Emission Control via Wireless Signal Synchronization
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Solution Overview
Problem
In radiation irradiation detection systems, synchronization issues between radiation generation and detection apparatuses can lead to incorrect stopping of radiation emission due to noise interference, resulting in increased patient radiation exposure and unnecessary reimaging.
Innovation Solution
A radiation irradiation detection system with a radiation generation apparatus that starts and continues radiation emission based on an initial irradiation instruction, regardless of the reception state of the emission permitting signal, and stops emission only upon receiving a stoppage instruction, using wireless communication for signal transmission between the apparatuses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communication is used to transmit emission permitting signals between radiation detection apparatus and radiation generation apparatus, then synchronization between the two apparatuses is achieved, but the emission permitting signal may not be normally received due to noise interference
Solution Approach 1:
The radiation generation apparatus outputs an emission permitting signal in advance before radiation emission starts, and the radiation detection apparatus receives this signal beforehand to prepare for synchronous operation. This preliminary signal exchange establishes the synchronization foundation before the actual radiation emission begins, ensuring both apparatuses are ready to operate in coordination.
Solution Approach 2:
The radiation detection apparatus transmits an emission permitting signal back to the radiation generation apparatus to confirm readiness and maintain synchronization. This feedback mechanism allows the generation apparatus to verify that the detection apparatus is prepared, creating a closed-loop control system that adjusts for potential communication issues and maintains reliable operation despite noise interference.
2Ease of operation
If radiation emission is controlled based on logical product of emission permitting signal and irradiation instruction, then precise control is achieved, but radiation emission is wrongly stopped when emission permitting signal cannot be received
Solution Approach 1:
The emission permitting signal is exchanged in advance before radiation emission begins, establishing synchronization and operational readiness. By completing the control signal exchange beforehand, the system ensures that both apparatuses are synchronized and ready, reducing the risk of wrongful stopping during the actual emission process due to noise interference.
3Measurement precision
If radiation emission is stopped due to failed reception of emission permitting signal, then control accuracy is maintained, but patient radiation exposure increases due to unnecessary reimaging
Solution Approach 1:
The emission permitting signal is transmitted and received in advance before radiation emission starts, ensuring synchronization is established beforehand. This preliminary action allows the system to confirm readiness and maintain accurate control while avoiding wrongful stopping during emission, thereby preventing unnecessary reimaging and reducing patient radiation exposure.
4Reliability
If wired communication is used for signal transmission, then signal reception reliability is high, but device complexity and installation difficulty increase
Solution Approach 1:
The patent replaces wired mechanical communication connections with wireless communication between the radiation detection apparatus and radiation generation apparatus. This substitution eliminates the need for physical signal cables and complex wiring installations while maintaining the ability to transmit emission permitting signals reliably, thereby reducing device complexity and installation difficulty.
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 prevents wrongful cessation of radiation imaging and reduces patient radiation exposure by ensuring continuous emission during the preset period, thereby minimizing the need for reimaging.
Implementation Method 1
a radiation generation unit 11 generating radiation
Implementation Method 2
a radiation detector 21 detecting radiation transmitted through a subject M
Data Source
AI summary
A radiation irradiation detection system includes a radiation generation apparatus that includes a radiation generation unit, an emission control unit controlling emission of the radiation, and an exposure switch unit receiving a radiation irradiation instruction and a radiation stoppage instruction, and a radiation detection apparatus that includes a radiation detector detecting the radiation transmitted through a subject, and a detection control unit controlling the radiation detector, and the emission control unit starts emission of the radiation in a case where the emission permitting signal output from the detection control unit is received while the exposure switch unit is receiving the radiation irradiation instruction, continuously performs emission of the radiation regardless of a reception state of the emission permitting signal in a preset emission period after the radiation starts to be emitted, and stops emission of the radiation in a case where the instruction reception unit receives the radiation stoppage instruction.