Synchrotron Magnet Design for Continuous Proton Extraction
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Solution Overview
Problem
There is a need for efficient acceleration of charged particles in a synchrotron with minimal power supply requirements and precise extraction of charged particles for effective cancer treatment with minimal damage to surrounding tissue, while continuing acceleration during extraction.
Innovation Solution
A charged particle beam acceleration and extraction method using a novel synchrotron design with turning magnets, edge focusing magnets, and magnetic field concentration to minimize size, power requirements, and allow continuous acceleration during extraction, enabling precise and efficient delivery of charged particles for cancer treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional synchrotron design is used for charged particle acceleration, then sufficient acceleration capability is achieved, but the system size and power consumption are excessive
Solution Approach 1:
The synchrotron is divided into multiple independent modules, each containing a magnet and RF cavity. This modular segmentation allows the system to achieve sufficient acceleration capability through coordinated operation of multiple smaller units rather than requiring a single large high-power component, thereby reducing overall power consumption and system size.
Solution Approach 2:
The patent implements dynamic adjustment of RF cavity frequencies to match the revolution frequency of charged particles at different acceleration stages. This dynamic synchronization optimizes acceleration efficiency at each stage, enabling effective acceleration with reduced power requirements compared to static frequency systems.
2Manufacturing precision
If charged particles are extracted from synchrotron for cancer treatment, then precise delivery to tumor is achieved, but acceleration must be interrupted
Solution Approach 1:
The extraction mechanism is prepared and positioned in advance within the synchrotron cycle, allowing particles to be extracted at the optimal moment without disrupting the overall acceleration process. The deflection magnets and extraction RF cavities are pre-configured to enable seamless particle removal at the required precision level.
Solution Approach 2:
The synchrotron maintains continuous acceleration operation while extracting charged particles for treatment. Multiple extraction points and timed extraction sequences allow the system to deliver precise particle beams to targets while simultaneously continuing the acceleration cycle, ensuring uninterrupted productivity.
3Productivity
If traditional extraction method is used, then charged particles are removed from synchrotron, but surrounding healthy tissue is damaged
Solution Approach 1:
The extraction system employs localized deflection magnets and RF cavities that act only on the specific region where particles need to be extracted. This localized action allows precise extraction of the required particle beam while leaving other particles continuing their acceleration cycle, minimizing unnecessary radiation exposure to surrounding healthy tissue.
Solution Approach 2:
The patent replaces traditional mechanical extraction methods with electromagnetic field-based extraction using RF cavities and magnetic deflection. This substitution enables more precise control over particle extraction timing and trajectory, improving extraction efficiency while reducing scatter and damage to surrounding healthy tissue compared to mechanical approaches.
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 results in a compact synchrotron design with reduced power consumption, enabling precise and accurate delivery of charged particles for cancer treatment with minimal damage to healthy tissue, allowing for continuous acceleration during extraction.
Implementation Method 1
an RF cavity system for applying an oscillating electric field to accelerate the charged particles circulating in the synchrotron
Implementation Method 2
applying an oscillating electric field to accelerate the charged particles
Implementation Method 3
charged particle beam acceleration and extraction method and apparatus used in conjunction with a charged particle beam radiation therapy system
Data Source
AI summary
The invention comprises a charged particle beam acceleration and optional extraction method and apparatus used in conjunction with charged particle beam radiation therapy of cancerous tumors. Novel design features of a synchrotron are described. Particularly, turning magnets, edge focusing magnets, concentrating magnetic field magnets, and extraction elements are described that minimize the overall size of the synchrotron, provide a tightly controlled proton beam, directly reduce the size of required magnetic fields, directly reduces required operating power, and allow continual acceleration of protons in a synchrotron even during a process of extracting protons from the synchrotron.