在HIMM医用重离子加速器(Heavy Ion Medical Machine)中,回旋加速器的连锁保护功能针对离子源、高频、真空、电源、冷却水等子系统的连锁要求,设计实现了设备+PLC+软件三层结构的连锁系统,并保证连锁功能在系统断电、线缆连接故障、数...在HIMM医用重离子加速器(Heavy Ion Medical Machine)中,回旋加速器的连锁保护功能针对离子源、高频、真空、电源、冷却水等子系统的连锁要求,设计实现了设备+PLC+软件三层结构的连锁系统,并保证连锁功能在系统断电、线缆连接故障、数据传输异常等情况下的正常工作。连锁系统可实现硬连锁毫秒级、软连锁次秒级别的反应速度。整体功能在回旋调试过程中得到验证,保障了整个加速器的顺利供束。展开更多
The Heavy Ion Medical Machine (HIMM) has been established inWuwei, China. In order to realize the accelerate control of the HIMM (Ion Medical Machine), a new dedicated accelerator control system (ACS) has been develop...The Heavy Ion Medical Machine (HIMM) has been established inWuwei, China. In order to realize the accelerate control of the HIMM (Ion Medical Machine), a new dedicated accelerator control system (ACS) has been developed and used. Because the HIMM is a commercial device, some new technologies which is different from CSR were used in HIMM. The system use a large number of industrial standard control modules and equipments standard industrial communication protocol is also used as far as possible, such as OPC (OLE of Process Control) and OPC UA (OPC Unified Architecture).展开更多
Chopper control and monitoring system plays an important role in HIMM (Heavy icon medical machine). It is used to control and monitor the outputs voltage of the pulse generator. The pulse generator outputs high voltag...Chopper control and monitoring system plays an important role in HIMM (Heavy icon medical machine). It is used to control and monitor the outputs voltage of the pulse generator. The pulse generator outputs high voltage wave forms to 3 500 V on the basis of an input trigger, which requires +5 V 1 V into 50 Ω with a risetime of <20 ns togate. The Chopper control and monitoring system is designed and the structure of it is shown in Fig. 1.展开更多
Heavy ion therapy for cancer treatment is known as the world’s most advanced and most effective radiotherapy method. Institute of Modern Physics, Chinese Academy of Sciences spent a long time to research in this fiel...Heavy ion therapy for cancer treatment is known as the world’s most advanced and most effective radiotherapy method. Institute of Modern Physics, Chinese Academy of Sciences spent a long time to research in this field. The beam of Chinese first medical heavy ion accelerator with independent intellectual property rights was successfully extracted on December 23rd, 2015 in Wuwei. Medical heavy ion accelerator is a huge system; this paper only describes the ion-source and cyclotron control software design.展开更多
There are more than one hundred pulse power supplies in the project of HIMM (High Ion Medical Machine).The control protocol of them is unified. But the HVPS (high voltage power supply) for deflecting plate of the beam...There are more than one hundred pulse power supplies in the project of HIMM (High Ion Medical Machine).The control protocol of them is unified. But the HVPS (high voltage power supply) for deflecting plate of the beam extracted system is different.The control of HVPS includes the current settings, the status display and the HV turn on/off.展开更多
Heavy ion beam has been considered to be the most optimal radiation for tumor treatment in the field of radiotherapy due to a high ionization density and a high relative biological effectiveness (RBE), culminating in ...Heavy ion beam has been considered to be the most optimal radiation for tumor treatment in the field of radiotherapy due to a high ionization density and a high relative biological effectiveness (RBE), culminating in a sharp maximum at a discrete penetration depth that coincides with the maximum physical dose around the socalled Bragg peak. It is important to develop the hospital-based heavy-ion-therapy facility to make the treatment accessible for public tumor patients.展开更多
Background The control system for ion source is based on distributed architecture.The hardware structure,working principle,interlock design and graphics interface design are introduced and stated in this paper.Purpose...Background The control system for ion source is based on distributed architecture.The hardware structure,working principle,interlock design and graphics interface design are introduced and stated in this paper.Purpose To improve the accuracy and usability of the electron cyclotron resonance ion source with advanced design for HIMM.Methods The data acquisition system is based on PLC and FPGA integrated circuit.Interlock protection is designed for vacuum system,power supplies system and cooling water system.Results The control system is tested with C5+ion beam,where fast reaction time and high-precision data processing during beam tuning have verified the stability and maintainability of the control system.Conclusion The latest results and the reliable long-term operation of the accelerator demonstrate that the performance has been continually improved with the development of the optimized control system.展开更多
介绍了一种应用于医用重离子治疗装置(Heavy Ion Medical Machine,HIMM)的数字电源触摸屏控制系统,该设计采用PIC24单片机驱动触摸屏。依照电源系统的内部协议,实现了电源触摸屏控制系统的开关机控制、波形显示、状态显示以及参数设定...介绍了一种应用于医用重离子治疗装置(Heavy Ion Medical Machine,HIMM)的数字电源触摸屏控制系统,该设计采用PIC24单片机驱动触摸屏。依照电源系统的内部协议,实现了电源触摸屏控制系统的开关机控制、波形显示、状态显示以及参数设定等多种功能。该系统与电源核心数控板、状态板通讯测试正常稳定,本地操作更加方便、美观,比模拟控制方式稳定可靠,控制精度更高。展开更多
The radioactivity induced by carbon ions of the Heavy Ion Medical Machine （HIMM） was studied to asses its radiation protection and environmental impact. Radionuclides in the accelerator component, and in the cooling...The radioactivity induced by carbon ions of the Heavy Ion Medical Machine （HIMM） was studied to asses its radiation protection and environmental impact. Radionuclides in the accelerator component, and in the cooling water and air at the target area, which are induced from primary beam and secondary particles, are simulated by FLUKA Monte Carlo code. It is found that radioactivity in the cooling water and air is not very important at the required beam intensity and energy that is needed for treatment, while radionuclides in the accelerator component may cause some problems for maintenance work and, therefore, a suitable cooling time is needed after the machine is shut down.展开更多
文摘在HIMM医用重离子加速器(Heavy Ion Medical Machine)中,回旋加速器的连锁保护功能针对离子源、高频、真空、电源、冷却水等子系统的连锁要求,设计实现了设备+PLC+软件三层结构的连锁系统,并保证连锁功能在系统断电、线缆连接故障、数据传输异常等情况下的正常工作。连锁系统可实现硬连锁毫秒级、软连锁次秒级别的反应速度。整体功能在回旋调试过程中得到验证,保障了整个加速器的顺利供束。
文摘The Heavy Ion Medical Machine (HIMM) has been established inWuwei, China. In order to realize the accelerate control of the HIMM (Ion Medical Machine), a new dedicated accelerator control system (ACS) has been developed and used. Because the HIMM is a commercial device, some new technologies which is different from CSR were used in HIMM. The system use a large number of industrial standard control modules and equipments standard industrial communication protocol is also used as far as possible, such as OPC (OLE of Process Control) and OPC UA (OPC Unified Architecture).
文摘Chopper control and monitoring system plays an important role in HIMM (Heavy icon medical machine). It is used to control and monitor the outputs voltage of the pulse generator. The pulse generator outputs high voltage wave forms to 3 500 V on the basis of an input trigger, which requires +5 V 1 V into 50 Ω with a risetime of <20 ns togate. The Chopper control and monitoring system is designed and the structure of it is shown in Fig. 1.
文摘Heavy ion therapy for cancer treatment is known as the world’s most advanced and most effective radiotherapy method. Institute of Modern Physics, Chinese Academy of Sciences spent a long time to research in this field. The beam of Chinese first medical heavy ion accelerator with independent intellectual property rights was successfully extracted on December 23rd, 2015 in Wuwei. Medical heavy ion accelerator is a huge system; this paper only describes the ion-source and cyclotron control software design.
文摘There are more than one hundred pulse power supplies in the project of HIMM (High Ion Medical Machine).The control protocol of them is unified. But the HVPS (high voltage power supply) for deflecting plate of the beam extracted system is different.The control of HVPS includes the current settings, the status display and the HV turn on/off.
文摘Heavy ion beam has been considered to be the most optimal radiation for tumor treatment in the field of radiotherapy due to a high ionization density and a high relative biological effectiveness (RBE), culminating in a sharp maximum at a discrete penetration depth that coincides with the maximum physical dose around the socalled Bragg peak. It is important to develop the hospital-based heavy-ion-therapy facility to make the treatment accessible for public tumor patients.
基金the National Natural Science Foundation of China(Grant No.U1632141).
文摘Background The control system for ion source is based on distributed architecture.The hardware structure,working principle,interlock design and graphics interface design are introduced and stated in this paper.Purpose To improve the accuracy and usability of the electron cyclotron resonance ion source with advanced design for HIMM.Methods The data acquisition system is based on PLC and FPGA integrated circuit.Interlock protection is designed for vacuum system,power supplies system and cooling water system.Results The control system is tested with C5+ion beam,where fast reaction time and high-precision data processing during beam tuning have verified the stability and maintainability of the control system.Conclusion The latest results and the reliable long-term operation of the accelerator demonstrate that the performance has been continually improved with the development of the optimized control system.
文摘介绍了一种应用于医用重离子治疗装置(Heavy Ion Medical Machine,HIMM)的数字电源触摸屏控制系统,该设计采用PIC24单片机驱动触摸屏。依照电源系统的内部协议,实现了电源触摸屏控制系统的开关机控制、波形显示、状态显示以及参数设定等多种功能。该系统与电源核心数控板、状态板通讯测试正常稳定,本地操作更加方便、美观,比模拟控制方式稳定可靠,控制精度更高。
文摘The radioactivity induced by carbon ions of the Heavy Ion Medical Machine （HIMM） was studied to asses its radiation protection and environmental impact. Radionuclides in the accelerator component, and in the cooling water and air at the target area, which are induced from primary beam and secondary particles, are simulated by FLUKA Monte Carlo code. It is found that radioactivity in the cooling water and air is not very important at the required beam intensity and energy that is needed for treatment, while radionuclides in the accelerator component may cause some problems for maintenance work and, therefore, a suitable cooling time is needed after the machine is shut down.
