Multi-Source Focusing Radiation Therapy Collimating Body
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Solution Overview
Problem
Existing multi-source focusing radiation therapy equipment faces challenges in accurately adjusting the shape of the radiation field and controlling radiation doses due to the limitations of single-shaped collimating bodies with low control accuracy.
Innovation Solution
A collimating body with a first and second collimating portion, arranged side by side and capable of moving perpendicular to each other, allowing for alignment or staggering of collimating hole sets with varying aperture sizes to adjust the radiation field shape and improve dose control accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single collimating body with multiple collimating holes of different aperture sizes is used, then the device complexity is reduced, but the manufacturing precision and dose control accuracy deteriorate
Solution Approach 1:
The collimating body is divided into a first collimating portion and a second collimating portion, each with different collimating hole sets. This segmentation allows independent optimization of each portion's collimating holes for different aperture sizes and shapes, thereby improving radiation field shape accuracy while maintaining manageable device complexity through modular design.
2Adaptability or versatility
If collimating bodies with different aperture sizes are changed during treatment, then the adaptability to different affected regions is improved, but the productivity and treatment efficiency deteriorate
Solution Approach 1:
The collimating body is designed with multiple collimating hole sets integrated into a single structure, allowing it to perform multiple functions by selecting different collimating hole combinations. The first and second collimating portions can be independently positioned to provide various aperture sizes and shapes, enabling the same collimating body to adapt to different affected regions without requiring physical replacement, thus improving treatment efficiency.
3Ease of operation
If multiple collimating holes with different aperture sizes are disposed on one collimating body, then the ease of operation is improved, but the manufacturing precision and dose control accuracy deteriorate
Solution Approach 1:
Different regions of the collimating body (first and second collimating portions) are designed with different collimating hole characteristics optimized for specific dose control requirements. Each portion can be selectively positioned to engage with corresponding source body holes, allowing local optimization of dose control accuracy for different radiation field requirements while maintaining ease of operation through simple positional selection.
Data Source
AI summary
The present disclosure provides a collimating body and a multi-source focusing radiation therapy head. The collimating body includes a first collimating portion and a second collimating portion. The first collimating portion and the second collimating portion are arranged side by side and closely fixed. The first collimating portion includes a first collimating hole set, and the second collimating portion includes a second collimating hole set. The first collimating portion and the second collimating portion are able to move oppositely in a direction perpendicular to a side-by-side direction, so as to align or stagger the first collimating hole set and the second collimating hole set.