Rotatable Deflection Magnet for Precise Particle Beam Steering
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Solution Overview
Problem
Conventional particle beam treatment apparatuses face issues with obtaining effective deflection forces due to combined deflection forces becoming small at certain angles, limiting the ability to accurately direct particle beams.
Innovation Solution
The apparatus includes a rotatable deflection magnet that can be aligned with the desired deflection direction of the particle beam, allowing for effective deflection force regardless of the beam's direction, and a mechanism to adjust the rotation angle of the deflection magnet accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If biaxial deflection magnets are used to deflect the particle beam, then the particle beam can be adjusted in x-axis and y-axis directions, but the combined deflection force becomes small at certain angles
Solution Approach 1:
The deflection magnet is made rotatable around the beam axis, transforming a static configuration into a dynamic one. This allows the magnet to adapt its orientation to any desired deflection direction while maintaining optimal deflection force magnitude, resolving the contradiction between versatile direction coverage and sufficient force magnitude.
Solution Approach 2:
The orientation angle of the deflection magnet is changed as a controllable parameter. By adjusting this angle, the system maintains effective deflection force across all deflection directions, converting a fixed-parameter system with force limitations into a variable-parameter system with consistent performance.
2Adaptability or versatility
If multiple deflection magnets are combined to achieve deflection in multiple directions, then directional control is improved, but the system complexity increases
Solution Approach 1:
The deflection function is segmented into two independent components: a rotatable deflection magnet that provides directional control through rotation, and a fixed magnet that provides the magnetic field. This segmentation allows the system to achieve biaxial deflection capability without the complexity of multiple fixed magnets in specific configurations.
Solution Approach 2:
The rotatable deflection magnet serves multiple functions: it can deflect the beam in any direction within the x-y plane and can be positioned at any angle. This single multi-functional component replaces what would traditionally require multiple specialized magnets, reducing overall system complexity while maintaining versatility.
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 configuration ensures effective deflection force alignment with the desired direction, enabling precise particle beam control and potentially reducing the size and number of magnets required, thus lowering costs.
Implementation Method 1
a deflection magnet that deflects the particle beam
Implementation Method 2
The deflection magnet is rotatable around a beam axis of the particle beam
Data Source
AI summary
A particle beam treatment apparatus includes an irradiation portion configured to irradiate a particle beam to an irradiation target, a transport portion configured to transport the particle beam, and a deflection magnet apparatus having a deflection magnet for deflecting the particle beam in the transport portion. The deflection magnet is rotatable around a beam axis of the particle beam. A deflection magnet apparatus includes a deflection magnet that deflects a particle beam. The deflection magnet is rotatable around a beam axis of the particle beam. A particle beam adjustment method for adjusting a deflection magnet that deflects a particle beam includes adjusting the particle beam by rotating the deflection magnet around a beam axis of the particle beam.