Device and method for controlling acceleration voltage of superconductive circular accelerator

Abstract

The invention discloses a device for controlling an acceleration voltage of a superconductive circular accelerator, and the device comprises a signal generator, a local crystal oscillator unit, a local control unit, a radio frequency diagnosis unit, an FPGA data processing unit and an interlocking protection unit. The signal generator is connected with the local crystal oscillator unit, and the FPGA data processing unit is connected with the local crystal oscillator unit, the interlocking protection unit, the local control unit and an accelerator, and the interlocking protection unit is connected with the radio frequency diagnosis unit. According to the invention, the radio frequency diagnosis unit is used for detecting a radio frequency signal in a cavity, so as to prevent the radio frequency signal from exceeding a threshold value. The FPGA data processing unit is used for the interlocking protection, amplitude, tuning, phase and field balance control, adjusts the stabilization of the acceleration voltage of an accelerating cavity, and is combined with the interlocking protection unit. Once there is an abnormality in the cavity, a radio frequency source can be quickly cut off, thereby effectively protecting an accelerator and an operator, and improving the operation safety of the device and the stability of the acceleration voltage.

Description

technical field [0001] The invention belongs to the technical field of cyclotrons, and relates to a device and method for controlling the accelerating voltage of a superconducting cyclotron. Background technique [0002] A cyclotron uses a magnetic field to cause charged particles to perform a cyclotron motion, and is repeatedly accelerated by a high-frequency electric field during the motion. In a superconducting cyclotron, in order to maintain the stability of the built-up field in the accelerator, a control system is needed to suppress the interference factors inside and outside the cavity. The early control system was composed of analog devices, which had the advantages of simple system design and relatively short delay of the control loop, but had the disadvantages of poor portability, large external interference, poor control stability, low security and poor integration. In order to solve the above problems, a device and method for controlling the accelerating voltage...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a device and method for controlling the accelerating voltage of a superconducting cyclotron, which solves the problems of low safety and poor stability in the process of accelerating the voltage of the existing accelerator resonant cavity

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