Radiation Imaging Electrode Insulation for Noise Reduction
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Solution Overview
Problem
Current radiation therapy devices, particularly proton therapy, face challenges in real-time monitoring of radiation profiles and energy transfer during patient treatment, leading to difficulties in synchronizing radiation emission and imaging, and the occurrence of noise signals due to direct exposure of electrodes to the atmosphere.
Innovation Solution
A radiation imaging system with a first electrode unit that generates charge signals upon radiation exposure, a signal processing unit to analyze and convert electric current signals into voltage signals, and an image processing device to create images and measure radiation energy, while a second electrode unit prevents direct exposure to air, reducing noise signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the top electrode is exposed directly to the atmosphere to enable radiation detection, then radiation imaging capability is improved, but noise signals increase due to air ionization
Solution Approach 1:
An electrical insulation layer is introduced as an intermediary between the top electrode and the atmosphere. This layer allows radiation to pass through while blocking direct contact between air molecules and the electrode, thereby preventing air ionization noise while maintaining radiation detection capability
Solution Approach 2:
The electrical insulation layer creates an inert environment around the top electrode, isolating it from the atmospheric air that would otherwise be ionized by radiation and generate noise signals
2Measurement precision
If real-time monitoring of radiation profile is implemented, then treatment accuracy is improved, but system complexity increases
Solution Approach 1:
The top electrode serves multiple functions: it acts as both the radiation detection element and the voltage application terminal. The electrical insulation layer simultaneously provides electrical isolation and radiation transparency. This multi-functionality reduces the need for additional components, thereby limiting the increase in system complexity
Solution Approach 2:
The system monitors changes in electrical parameters (current, voltage) of the top electrode in real-time to track radiation profile. By using existing electrical measurement capabilities rather than introducing new sensing mechanisms, the solution achieves real-time monitoring without proportionally increasing system complexity
3Measurement precision
If synchronization between radiation emission and imaging is achieved, then image quality is improved, but control system complexity increases
Solution Approach 1:
The radiation emission control and imaging acquisition are merged into a coordinated process where the top electrode voltage application and image capture are synchronized. This integration allows for better image quality without requiring completely separate control systems
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 monitoring of radiation profiles and energy transfer, synchronizes radiation emission and imaging, and minimizes noise signals by preventing direct air exposure, thus improving the accuracy and efficiency of radiation therapy.
Implementation Method 1
a first electrode unit configured to receive a voltage and generate a charge signal when the first electrode unit is irradiated with radiation
Data Source
AI summary
Embodiments relate to a radiation imaging device and a radiation imaging system, and more particularly, to a radiation imaging device and a radiation imaging system capable of monitoring, in real time, a radiation profile, synchronizing radiation irradiation and radiographic images, and removing noise signals in the case of treating a patient or the like by using radiation.