Charged Particle Beam Irradiation Device with Rotating Gantry
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Solution Overview
Problem
Existing charged particle beam irradiation devices require separate spaces for the particle accelerator, beam transport line, and rotatable gantry, leading to equipment enlargement and increased site area needs, with inefficient construction processes due to numerous assembly steps at the installation location.
Innovation Solution
A charged particle beam irradiation device with a particle accelerator and beam transport line housed within a cylindrical outer shell that rotates, allowing for integral assembly and miniaturization, enabling pre-assembly and testing at a factory, and maintaining rigidity while reducing installation time and space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the particle accelerator, beam transport line, and rotatable gantry are provided as separate equipment requiring separate spaces, then each component can be independently designed and maintained, but the overall equipment size and site area requirements increase significantly
Solution Approach 1:
The patent combines the particle accelerator, beam transport line, and rotatable gantry into a single integrated device where the accelerator and transport line are housed within the gantry structure. This merging eliminates the need for separate spaces for each component while maintaining their functional independence, thereby reducing the overall site area without compromising manufacturability or maintainability
Solution Approach 2:
The particle accelerator and beam transport line are nested within the rotatable gantry structure, with the accelerator positioned inside the gantry and the transport line connecting them within the same structural envelope. This nesting arrangement allows multiple functional components to share the same spatial footprint, significantly reducing the site area required
2Adaptability or versatility
If multiple rotatable gantries are provided for one particle accelerator to enhance versatility, then treatment coverage is improved, but the equipment size and complexity increase
Solution Approach 1:
The patent employs a dynamically adjustable collimator system within the rotatable gantry that can change its configuration and positioning during operation. This dynamic capability allows a single gantry to adapt to different treatment requirements and achieve comprehensive treatment coverage without needing multiple fixed gantries, thereby reducing equipment complexity while maintaining versatility
Solution Approach 2:
The integrated design creates a universal platform where the particle accelerator can serve multiple treatment functions through the rotatable gantry's ability to position the beam from various angles and the adjustable collimator's capacity to modify beam characteristics. This multi-functionality eliminates the need for multiple specialized gantries while maintaining comprehensive treatment coverage
3Loss of time
If the particle accelerator and beam transport line are housed within the rotatable gantry, then the device is miniaturized and installation time is reduced, but the structural design and assembly precision requirements increase
Solution Approach 1:
The particle accelerator, beam transport line, and associated components are pre-assembled and pre-positioned within the rotatable gantry structure during manufacturing. This preliminary assembly action allows for factory testing and adjustment before delivery, reducing on-site installation time while establishing precise alignment requirements that must be met during the initial assembly phase
Data Source
AI summary
A charged particle beam irradiation device includes a particle accelerator that accelerates charged particles and ejects a charged particle beam, a cylindrical outer shell part that is capable of rotating around a rotating axis, an irradiation unit that is capable of irradiating an irradiation target with the charged particle beam, the irradiation direction of which changes in accordance with the rotation of the outer shell part, and a beam transport line that transports the charged particle beam ejected from the particle accelerator to the irradiation unit. The particle accelerator and the beam transport line may be at least partially housed within the outer shell part.