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Digital power supply synchronization system and method applied to cancer treatment for ion accelerator

An ion accelerator, digital power technology, applied in electromagnetic wave transmission systems, transmission systems, electrical components and other directions, can solve problems such as the inability to meet the requirements of magnet power pulse operation

Active Publication Date: 2015-02-25
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The control system of the general magnet power supply cannot meet the requirements of the pulse operation of the magnet power supply

Method used

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  • Digital power supply synchronization system and method applied to cancer treatment for ion accelerator
  • Digital power supply synchronization system and method applied to cancer treatment for ion accelerator
  • Digital power supply synchronization system and method applied to cancer treatment for ion accelerator

Examples

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Effect test

Embodiment 1

[0028] Example 1: see figure 1 , figure 2 , image 3 Shown, a kind of digital power synchronous system that is applied to the treatment of cancer of ion accelerator, comprises FPGA chip 1, is used to connect the RJ45 interface 2 of Ethernet, the optical fiber receiver 3 that converts optical signal into digital signal, described FPGA chip 1 is connected to the described RJ45 interface 2 through the Ethernet chip 4, network transformer 5 and described RJ45 interface 2 in order to realize the network communication of FPGA chip 1 and remote computer successively, and described FPGA chip 1 also passes through digital isolation circuit 6, monostable successively State multivibrator 7 is connected with optical fiber receiver 3. FPGA chip 1 is also connected with synchronous static random access memory (SSRAM) 8, synchronous dynamic random access memory (SDRAM) 9, JTAG protocol module 10, serial memory (EPCS) 11, and FLASH module 12 respectively. The address lines, data lines an...

Embodiment 2

[0031] Embodiment 2: the present invention also provides a kind of synchronous method of the digital power supply that is applied to the ion accelerator to treat cancer, and the overall work flow is:

[0032] (1) The general-purpose high-precision digital regulator controls the pulse width modulation PWM signal output channel to keep the duty cycle and phase of the pulse width modulation PWM signal unchanged, and the digital power supply maintains the last given current value;

[0033] (2) The remote computer downloads the synchronization case table to the programmable system-on-chip on the FPGA chip through Ethernet (a way of data transmission, take this as an example), and the Nios II CPU in the system saves the synchronization case table to the synchronization fiber optic component Synchronization instance table storage area of ​​the module;

[0034] (3) The current synchronization instance signal is received by the optical fiber receiver, and the instance decoding unit of ...

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Abstract

The invention relates to a high-precision digital power supply pulse operation synchronization system applied to topology types of an ion cancer treatment accelerator and the like. The digital power supply synchronization system applied to cancer treatment for an ion accelerator comprises an FPGA (Field Programmable Gate Array) chip, an RJ45 interface for connecting with the Ethernet, and an optical fiber receiver used for converting an optical signal into a digital signal; the FPGA chip is connected with the RJ45 interface sequentially by an Ethernet chip and a network transformer, wherein the Ethernet chip is used for realizing the network communication of the FPGA chip and a remote computer; the FPGA chip is connected with the optical fiber receiver sequentially by a digital isolating circuit and a monostable multivibrator; and the FPGA chip is also connected with a pulse width modulation signal output channel module. According to the high-precision digital power supply pulse operation synchronization system, the pulse width trigger and the waveform switching of various topology types of digital power supplies, such as ion cancer treatment accelerator dipolar iron, quadrupole iron, sextupole iron and the like can be realized, and multiple power supplies in the digital power supply system of the ion cancer treatment accelerator can be synchronously started.

Description

technical field [0001] The invention relates to a high-precision digital power supply pulse operation synchronization system and method applied to ion cancer treatment accelerators and other topological types. Background technique [0002] The ion cancer treatment accelerator relies on magnet lenses such as dipole iron and quadrupole iron to control the beam current. The operation mode of the magnet to the power supply is divided into two types: pulse and direct current. The pulse operation of the magnet power supply requires that the power supply can output according to a given waveform and can switch between arbitrary waveforms; for the power supplies in the same system, the pulse start time between different power supplies is required to be within a very small error range. The control system of the general magnet power supply cannot meet the requirements of the pulse operation of the magnet power supply. Contents of the invention [0003] The present invention aims at ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/00
Inventor 陈又新王荣坤赵江闫怀海黄玉珍高大庆周忠祖吴凤军燕宏斌冯秀明张华剑
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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