Fast response scanning control system and method for active variable energy point scanning power supply

Abstract

The invention relates to a fast response scanning control system and method for an active variable energy point scanning power supply. The fast response scanning control system is characterized by comprising an AD board, a fast interlocking interface board, a state board, an FPGA controller and a PWM backboard, wherein the AD board is used for acquiring feedback current of each branch in the active variable energy point scanning power supply; the fast interlocking interface board is used for receiving a fast interlocking signal sent by a treatment terminal; the state board is used for judgingwhether a fault occurs in the active variable energy point scanning power supply or not, and if the fault occurs, feeding back a fault signal to the FPGA controller in real time; the FPGA controller is used for monitoring and determining an output current control signal of the active variable energy point scanning power supply in real time; and the PWM backboard is used for generating multiple paths of PWM optical signals in real time according to the output current control signal determined by the FPGA controller in real time, and sending the PWM optical signals to the active variable energypoint scanning power supply. The fast response scanning control system and method can be widely applied to the field of ion accelerators.

Description

technical field [0001] The invention relates to a fast-response scanning control system and method for an active variable energy point scanning power supply, belonging to the field of ion accelerators. Background technique [0002] The ion accelerator treatment device is a large-scale radiotherapy device that uses ion beams for radiotherapy. Charged ions are accelerated by a synchrotron to a certain energy and then injected into the human body. After that, a large amount of energy will be released instantly, forming a pulse peak of "Prague" energy. The entire irradiation process is similar to the "stereotactic blasting" of tumors, which can powerfully kill tumor lesions while avoiding irradiation of normal tissues to maximize the curative effect. The beam distribution system is the hardware facility for ion beam radiation therapy, and it is also an important part of the ion accelerator treatment device, including beam distribution, monitoring, debugging, collimation, and me...

AI Technical Summary

Problems solved by technology

However, in the prior art, there is no feasible scanning control method for the active scanning power supply to ensure that the ion accelerator treatment device can complete the active scanning treatment flexibly, reliably and safely.

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