Synchronous Timing Trigger System and Method Applied to Particle Accelerator

Abstract

The invention provides a synchronous timing trigger system applied to particle accelerators, comprising: a case generation system, used to index case files from a database according to case file numbers, and output case light signals according to case files; a case transmission system, used to transfer case Optical signal; case receiver / interpreter, used to receive the case light signal and convert it into case code, compare the case code with the trigger case code stored in the case receiver / decoder, if the two case codes are consistent, then generate the trigger signal or level, to trigger the device. The system adopts the PXIe / PXI industrial computer + case output board hardware solution to solve the problem of insufficient computing functions and storage resources of the system on chip, and improve the system control accuracy and speed; the controller and the case output board are connected through a high-speed backplane bus. Data interaction ensures the speed of data transmission and improves the real-time performance, reliability and synchronization of the system; it can provide multi-client access and solve the problems of communication ports and resource conflicts.

Description

technical field [0001] The invention relates to the technical field of tumor radiotherapy, in particular to a synchronous timing trigger system and method applied to particle accelerators. Background technique [0002] The medical heavy ion accelerator is an important component of the medical heavy ion therapy device. The object controlled by the accelerator is the charged particles running at a high speed close to the speed of light in the vacuum tube. In the process of medical heavy ion therapy, all the devices that need to be synchronized in the accelerator and the treatment terminal are required to operate synchronously with a precise time base, which requires a set of high-precision synchronous timing trigger system to coordinate and coordinate all the devices that need to be synchronized. Command and dispatch, operate synchronously according to strict cycle and timing, and generate particle beams required for treatment. [0003] At present, the synchronous timing trig...

AI Technical Summary

Problems solved by technology

The system can realize the digital pulse power supply of the ion accelerator or multiple digital pulse power supplies in the related industrial fields to start synchronously according to the set time sequence or group timing synchronous start control, which meets the requirements of the digital pulse power supply in the related field in the remote control mode. , but there are some shortcomings in this system: First, the system uses FPGA-based programmable system-on-chip as the trigger source server, and the functions and performance of the system are limited by the performance and resources of the system-on-chip, which is not conducive to system expansion, upgrade and optimization; Second, the system interacts with the upper computer (control computer) through the network chip and network port of the system-on-chip, and uses the TCP / IP communication protocol for data interaction. The data transmission and real-time performance are not high, and the transmission speed is slow; third, due to the The system is connected with other systems based on the TCP / IP communication protocol. When multiple users interact with it, there are problems such as communication port and resource conflicts.

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