Safe interlocking protection system of proton therapy accelerator

Abstract

The invention discloses a safe interlocking protection system of a proton therapy accelerator. Safety-type PLC is adopted as a data processing and executing component, the protection system is connected with a water cooling system, a vacuum system, a superconducting magnet system, an ion source system and an RF system, wherein the water cooling system is used for using flowing cooling water to take away heat generated by the operation of the accelerator, the vacuum system is used for providing a vacuum environment for the operation of the accelerator, the superconducting magnet system is usedfor providing a stable magnetic field environment for the operation of the accelerator, the ion source system is used for guiding proton beams from hydrogen molecule ionization, the RF system is usedfor providing an accelerating electric field for particles and maintaining the electric field stability in the accelerator through feedback control, fault and state signals of the sub system of the accelerator are collected by a safe interlocking system of the accelerator, and an interlocking signal of the sub systems of the accelerator is distributed by the safe interlocking system of the accelerator. By means of the system, the sub systems of the accelerator can be controlled to ensure the safety of the adjacent sub systems, and the damage to equipment is reduced to the maximum extent.

Description

technical field [0001] The invention relates to the field of accelerator equipment safety, in particular to a safety interlock protection system for a proton therapy accelerator. Background technique [0002] At present, the accelerator is a kind of electronic equipment widely used in the fields of industry, agriculture, medical and health, etc., and the standard required for the accelerator used in the medical field to treat cancer is higher than that in the general medical field, and the specified dose of proton flow needs to be accurately It is transmitted to the patient's lesion space to achieve the purpose of conformal treatment. [0003] For the control of the accelerator system in the medical field, the operation of the equipment can be operated through the network in the control system, and it also has the ability to detect the operation status of the equipment. However, due to the large amount of data processed by the control system, the response is slow, and it can...

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Problems solved by technology

[0003] For the control of the accelerator system in the medical field, the operation of the equipment can be operated through the network in the control system, and it also has the ability to detect the operation status of the equipment. However, due to the large amount of data processed by the control system, the response is slow, and it cannot quickly play a protective role.

Controlling the equipment through the network has certain risks. If the network communication is not smooth and the communication is interrupted, the control system cannot manually control the equipment, nor can it detect the operating status of the equipment.

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