Segmented Particle Beam Transport System Design
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Solution Overview
Problem
The complexity of designing and manufacturing particle beam transport systems with multiple branches increases exponentially with line length and branch number, due to varying particle beam cross-sectional shapes and directional dependencies of magnetic field specifications, leading to increased construction time and cost.
Innovation Solution
The particle beam transport system is segmented with common arrangements of focus and bending electromagnets, ensuring consistent beam characteristics and cross-sectional shapes at segment entrances and exits, allowing for flexible beam deflection and reduced component types, facilitating easier design, adjustment, and extension without requiring new beam line designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the particle beam transport line is extended and branched to accommodate multiple treatment rooms at different positions, then the treatment capacity and flexibility are improved, but the design complexity and construction time increase exponentially
Solution Approach 1:
The beam transport line is divided into multiple standardized segments, each with identical electromagnet arrangements and beam optical characteristics. This segmentation allows complex multi-branch transport systems to be constructed by repeating simple modular units, reducing overall design complexity while maintaining high adaptability for multiple treatment rooms.
Solution Approach 2:
Each beam transport segment is designed with universal characteristics that allow it to function in multiple positions and orientations within the transport system. The standardized electromagnet arrangements and beam optical parameters enable segments to be reused across different branches and treatment room configurations, reducing design complexity while increasing treatment capacity.
2Adaptability or versatility
If the particle beam transport line is extended and branched to accommodate multiple treatment rooms, then the treatment capacity is improved, but the construction time increases exponentially
Solution Approach 1:
By dividing the transport line into pre-designed standardized segments, construction can proceed through modular assembly rather than custom design for each section. This segmentation enables parallel construction of multiple segments and reduces the time required for beam line design and field adjustment when adding new treatment rooms.
Solution Approach 2:
Each beam transport segment is designed and configured in advance with standardized electromagnet arrangements and beam optical characteristics. This preliminary design work is performed once and can be replicated for multiple segments, significantly reducing the construction time when extending the system to accommodate additional treatment rooms.
3Manufacturing precision
If bending electromagnets are configured to efficiently generate magnetic field for elliptical cross-section particle beams, then the beam transport quality is improved, but the equipment specifications become subdivided and manufacturing complexity increases
Solution Approach 1:
The beam transport system transforms the elliptical cross-section beam into a circular cross-section beam at strategic locations using specialized electromagnet arrangements. This local transformation ensures that bending electromagnets only need to handle circular beams, simplifying their design and manufacturing while maintaining high beam transport quality through localized beam shape control.
4Adaptability or versatility
If the number of branches in the particle beam transport line increases, then the treatment flexibility is improved, but the field adjustment time increases exponentially
Solution Approach 1:
Each beam transport segment is designed with identical electromagnet arrangements and beam optical characteristics, creating a standardized modular unit. When adding new branches or treatment rooms, the system can be extended by adding more identical segments rather than redesigning the entire beam line, significantly reducing field adjustment time while maintaining treatment flexibility.
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 simplifies beamline design and field adjustments, reduces construction time and cost, and enables high-quality beam transport to arbitrary locations within a particle beam treatment facility with multiple treatment rooms, improving workability and reducing the complexity of equipment management.
Implementation Method 1
a scatterer (15) for multiple scattering of the passing particle beam
Implementation Method 2
bending electromagnets (12) for bending the traveling direction of the passing particle beam by the action of a magnetic field
Implementation Method 3
focus electromagnets (11) for converging the outer diameter of a passing particle beam by the action of a magnetic field
Data Source
AI summary
Provide a particle beam transport system that contribute to reduction of construction period and cost for a particle beam treatment facility including plural treatment rooms accommodating a particle-beam irradiation equipment.A particle beam transport system 10 includes: a main line 31 configured to transport a particle beam generated by an accelerator outward; a branch line 22 branching from the main line 31; irradiation equipments 30 (30a-30d) provided at respective ends of the branch line 22 and configured to irradiate a patient with the particle beam, wherein at least a part of the main line 31 and the branch line 22 is configured as plural segments 20; and beam characteristics of the particle beam of each of the plural segments 20 are substantially equal at both ends.