Particle Beam Scanning Clock Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In particle beam irradiation apparatuses, misalignment between planned and actual particle beam scanning leads to variations in irradiation dose, resulting in insufficient treatment effects due to differences in operation clocks between scanning control and electric current supply units, causing delay time variations.
Innovation Solution
Synchronizing the operation clocks of the scanning control and electric current supply units to maintain constant delay times, ensuring precise scanning control by transmitting an operation clock signal from the scanning control unit to the electric current supply unit, thereby eliminating variations in delay times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the scanning control unit and electric current supply unit operate with different operation clocks, then each unit can function independently with its own timing, but delay time variations occur causing misalignment between planned and actual particle beam scanning
Solution Approach 1:
The patent merges the operation clocks of the scanning control unit and electric current supply unit into a single synchronized timing system. The scanning control unit generates an operation clock that is also supplied to the electric current supply unit, ensuring both units operate on the same timing basis and eliminating delay time variations that would otherwise cause scanning misalignment.
Solution Approach 2:
The patent implements a feedback mechanism where the scanning control unit monitors the operation timing and adjusts the electric current supply timing accordingly. By using the same operation clock for both units, the system creates a closed-loop timing control that ensures consistent delay times and maintains accurate particle beam scanning positioning.
2Manufacturing precision
If the operation clocks are synchronized, then delay times remain constant ensuring accurate scanning control, but the system requires coordinated timing between units
Solution Approach 1:
The patent combines the timing control functions by having the scanning control unit generate and distribute the operation clock to both itself and the electric current supply unit. This unified timing approach ensures constant delay times and precise irradiation positioning without requiring complex external synchronization mechanisms.
3Reliability
If different operation clocks are used, then units can be controlled independently, but variations in delay times cause insufficient treatment effects
Solution Approach 1:
The patent merges the automatic timing coordination by using a single operation clock generated by the scanning control unit that governs both the scanning control and electric current supply. This eliminates delay time variations that would compromise treatment effectiveness while maintaining automatic control without requiring manual timing adjustments.
Data Source
AI summary
A particle beam irradiation apparatus including: a scanning unit configured to scan a particle beam; an electric current supply unit configured to supply an electric current to the scanning unit; and a scanning control unit configured to control the scanning unit by sending an electric current command value to the electric current supply unit, wherein a period of an operation clock of the scanning control unit and a period of an operation clock of the electric current supply unit are the same.