Scintillator Dose Measurement With Marker-Based Plane Identification
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Solution Overview
Problem
Conventional absorbed dose distribution measurement apparatuses face challenges in identifying the detection plane of the scintillator, limiting flexibility and precision, and require fixed camera-scintillator combinations, which hinders the expansion of application scope.
Innovation Solution
A radiation dose distribution measurement device with a removably attachable scintillator module and camera, utilizing transparent resin plates and markers for rapid detection plane identification, enabling high precision and repeatability, and allowing flexible positioning for various applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a scintillator is used for radiation dose distribution measurement, then radiation dose can be measured, but identifying the detection plane becomes complicated
Solution Approach 1:
A transparent resin plate is introduced as an intermediary component between the scintillator and the camera. This plate contains markers that serve as reference points for identifying the detection plane, thereby simplifying the identification process without interfering with the scintillator's radiation detection function
Solution Approach 2:
Markers with different colors or reflective properties are placed on the transparent resin plate at specific positions. These markers emit or reflect light that can be easily distinguished by the camera, enabling rapid and accurate identification of the detection plane through optical signal differentiation
2Reliability
If the camera and scintillator are fixed to the apparatus, then stable measurement can be achieved, but the scope of application cannot be expanded
Solution Approach 1:
The measurement system is divided into separable modules: the scintillator, the transparent resin plate with markers, and the camera can be independently attached or detached. This modular design allows the components to be reconfigured for different measurement scenarios while maintaining stable measurements when assembled
Solution Approach 2:
The transparent resin plate serves multiple functions: it protects the scintillator, provides structural support, contains positioning markers for detection plane identification, and allows optical transmission for both radiation-induced light detection and marker visualization. This multi-functionality enables a single component to adapt to various measurement requirements
3Productivity
If markers are added to identify the detection plane, then identification speed improves, but device complexity increases
Solution Approach 1:
The markers are integrated directly into the transparent resin plate during manufacturing, rather than being separate components. This merging of the marker system with the structural plate reduces the number of separate parts while maintaining the rapid identification function
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 rapid and precise identification of the detection plane, maintaining high repeatability and flexibility in application, even with changes in camera-scintillator positioning, thereby enhancing the accuracy and adaptability of radiation dose distribution measurements.
Implementation Method 1
a scintillator module which is removably attached to the housing, and emits fluorescence when radiation is irradiated from the radiation irradiation apparatus
Implementation Method 2
the marker is configured to receive fluorescence and Cherenkov light from the scintillator module, and to emit light in the direction of the camera
Data Source
AI summary
A radiation dose distribution measurement device of a radiotherapy apparatus capable of rapidly identifying a detection plane of a scintillator, having high precision and high repeatability, and easily expanding the scope of application. The radiation dose distribution measurement device includes a housing, a scintillator module which is removably attached to the housing, and emits fluorescence when radiation is irradiated from the radiation irradiation apparatus, and a camera which is removably attached to the housing, and shoots the fluorescence from the scintillator module. The scintillator module includes a scintillator held between transparent resin plates respectively located on both main faces of the scintillator, each transparent resin plate having a thickness of 1 cm to 10 cm, and markers are respectively formed along four corners of the transparent resin plate located on the side of the camera for identifying a detection plane of the scintillator.