A SFC-ES (Electrostatic Deflection) position monitoring and limit alarm system was built in 2014. As planned, the motion control part of SFC-ES is going to be upgraded and joined into this system in 2015 to complete a...A SFC-ES (Electrostatic Deflection) position monitoring and limit alarm system was built in 2014. As planned, the motion control part of SFC-ES is going to be upgraded and joined into this system in 2015 to complete a closed loop motion control system[1]. During the HIRFL 2015 summer maintains, this motion control function was realized and tested several times before used to verify the control and detection precision. At present, the overall control accuracy is about 0.2 mm.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
To improve the efficiency of Electron Cooling Control System of CSRm, power supplies control system was designed and set up in September 2015. The control software package is developed with Visual C++, which is able t...To improve the efficiency of Electron Cooling Control System of CSRm, power supplies control system was designed and set up in September 2015. The control software package is developed with Visual C++, which is able to control and monitor all power supplies. In order to prevent the power supplies’ leakage accident which may cause the breakdown of other device, alarm and interlock-protection functions are added to the software and hardware.展开更多
The kicker system in the Heavy Ion Research Facility in Lanzhou (HIRFL) plays an important role in beam extraction and injection between two cooling storage rings (CSRs). The old kicker control system which has been o...The kicker system in the Heavy Ion Research Facility in Lanzhou (HIRFL) plays an important role in beam extraction and injection between two cooling storage rings (CSRs). The old kicker control system which has been operated over 5 years cannot satisfy the requirements of current special physics experiments. The main reason is the 5 ns time precision restricts the improvement of the precision for the phase detection of the beam bunches.展开更多
The SFC extraction electrostatic deflection plate is located inside the SFC chamber and it is responsible for theSFC beam extraction. Before the SFC-ES position monitoring system was build, the actual position of the ...The SFC extraction electrostatic deflection plate is located inside the SFC chamber and it is responsible for theSFC beam extraction. Before the SFC-ES position monitoring system was build, the actual position of the cuttingpole and the high voltage cathode pole cannot be "seen" for beam tuning stuff. So they can only tuning the beam"blindly". This is very dangerous, in case of over adjusting the pole, serious damage may be caused. To avoid thiskind of damage, a route limit monitoring system was built in 2012. Using this system, the beam tuning stuff canget the information whether the cutting pole/the high voltage cathode pole is reaching the route limit. If the polehas reached the limit, there will be alarm information in the GUI interface to inform the beam tuning stuff to stopthe motor and change the moving direction. Although this can prevent big damage, precision position detectionfunction cannot be reached, and the SFC extraction electrostatic deflection plate still should be pulled out to checkthe position manually.展开更多
In the project of Heavy Ion Medicine Machine, the electrostatic septum is one of the important components ofsynchrotron which will be used for beam slow extraction. The maximum electric field is 85 kV/cm, the maximumv...In the project of Heavy Ion Medicine Machine, the electrostatic septum is one of the important components ofsynchrotron which will be used for beam slow extraction. The maximum electric field is 85 kV/cm, the maximumvoltage is 140 kV, and the good electric field area is (1020) mm 40 mm. When fabrication of electrostaticseptum is finished, the high voltage test is required to make sure that the septum could work stably in the highvoltage condition. In 2014, we had finished the high voltage test successfully.展开更多
High Intensity Heavy-ion Accelerator Facility(HIAF)is a very complex and huge system which is under construction by the Institute of Modern Physics in Huizhou.In order to realize the safe and reliable operation of thi...High Intensity Heavy-ion Accelerator Facility(HIAF)is a very complex and huge system which is under construction by the Institute of Modern Physics in Huizhou.In order to realize the safe and reliable operation of this facility.展开更多
In order to improve the stability of TR5 experimental terminal control system,a new control system was design and realized in 2018 both in hardware and software level.PLC(Programmable Logic Controller)is used in hardw...In order to improve the stability of TR5 experimental terminal control system,a new control system was design and realized in 2018 both in hardware and software level.PLC(Programmable Logic Controller)is used in hardware instead of assembled PC based plug-in board.In software,several sets of control software with independent functions are integrated into one software developed by C++.After the reform of the control system,the upgraded control system has been running steadily for several months.展开更多
According to the content of Ar^(39) in the sample to be tested,the age of the sample can be accurately calculated.This method is used in the measurement of glacial age,the measurement of ancient fossils,etc.So the Ar3...According to the content of Ar^(39) in the sample to be tested,the age of the sample can be accurately calculated.This method is used in the measurement of glacial age,the measurement of ancient fossils,etc.So the Ar39 ion source has been established to meet the requirement of ice age survey and fossil survey.The software of the Ar^(39) ion source control system is based on EPICS(Experimental Physics and Industrial Control System)architecture.It mainly consists of two layers:IOC layer and an layer.The OPI layer also includes two layers:Channel Access(CA)client interface and application software.The IOC layer includes six layers:Channel Access(CA)server interface,database access interface,dynamic database,record support module,device support module and device driver.展开更多
DR(Dielectronic Recombination)and CSRe cluster internal target are two of the important experiment terminals in HIRFL(Heavy Ion Research Facility in Lanzhou).Both terminals have moving detectors,which need to be pushe...DR(Dielectronic Recombination)and CSRe cluster internal target are two of the important experiment terminals in HIRFL(Heavy Ion Research Facility in Lanzhou).Both terminals have moving detectors,which need to be pushed in or pulled out remotely.Since the old control system has lot of inconvenience such as the decline of control accuracy and running instability,a set of new motion control system is design and realized in 2018.展开更多
The experimental research project of single event effect source technology is a national key project of the“Core Electronic Devices,High-end Universal Chips and Basic Software Products”Major National Science and Tec...The experimental research project of single event effect source technology is a national key project of the“Core Electronic Devices,High-end Universal Chips and Basic Software Products”Major National Science and Technology Projects.This research is aiming at studying the single event effect of high energy heavy ions with wide LET value.A new experimental terminal is going to be built to test researches on this area.This new terminal mainly uses the slowextraction high-energy heavy ion beam from the HIRFL CSRm.The beam will be used to pass through RIBLL2 beam transmission line and then pass through a series of focusing and deflection elements and it will finally focus on small beam spot size and scan uniformly at the terminal.The beam is used to carry out the simulation study of radiation resistance of aerospace devices.展开更多
A FPGA based time-to-digital converter(TDC)with high precision was designed and realized.A technique that combines coarse time counting and fine time measurement was adopted to achieve a large time measurement range a...A FPGA based time-to-digital converter(TDC)with high precision was designed and realized.A technique that combines coarse time counting and fine time measurement was adopted to achieve a large time measurement range and a fine time resolution.The method of“wave-union”was used in the time interpolation to improve the time resolution.The performance of TDC was tested under lab conditions and the results show that the time resolution of TDC is less than 40 ps.It has been applied for pulse width(time-over-threshold,TOT)measurement.展开更多
The project of design and build of an electrostatic spectrum motion control system for Northwest Institute of Nuclear Technology started in 2016 and the major offline test work was finished in 2017.The structure of th...The project of design and build of an electrostatic spectrum motion control system for Northwest Institute of Nuclear Technology started in 2016 and the major offline test work was finished in 2017.The structure of this electrostatic spectrum is similar with the electrostatic spectrum used in CSR and HIMM facility.It has 2 moving part,an anode frame and a high voltage electrode.Each moving part is driven by 2 motors.Besides these 4 motors,the controll devices also include 8 limit switches and 4 resistance rulers.The 8 limit switches are used to define the travel limit position of the moving part and the 4 resistance rulers are used to get the voltage values which are correspond with the relative position of each moving components.The control precision of this system is 0.1 mm.展开更多
Low Energy intense-highly-charged ion Accelerator Facility(LEAF)is national major research equipment development project Its construction is of great scientific significance.It can be used for nuclear astrophysics,rad...Low Energy intense-highly-charged ion Accelerator Facility(LEAF)is national major research equipment development project Its construction is of great scientific significance.It can be used for nuclear astrophysics,radiation physics,etc.There are four parts of it,they are superconducting ion source,high voltage platform and beam line,RFQ accelerator,and experimental terminal.Motion control system is an important part of it,mainly used for gas intake control,moving electrode sputter control beam slits and bias voltage control.展开更多
To establish the sputter ion pump remote control system for TR5 and TR6 of HIRFL(Heavy Ion Research Facility in Lanzhou),EPICS(Experimental Physics And Industrial Control System)is adopted to development new control s...To establish the sputter ion pump remote control system for TR5 and TR6 of HIRFL(Heavy Ion Research Facility in Lanzhou),EPICS(Experimental Physics And Industrial Control System)is adopted to development new control system.Beckhoff PLC and self-designed hardware module have been used to build the hardware platform and the whole system structure is established based on field bus and EtherCAT(Ethernet for Control Automation Technology)technology.EtherCAT is an ideal Ethernet solution for industrial automation,characterized by outstanding performance and particularly simple handling.In the realization process of the system,IOC record device support and PV definition are achieved.At the same time,we have developed a client application in the CSS environment.In this sputter ion pump control system,we realized the basic interlocking protection function in both of hardware and software.The photo of hardware module is shown in Fig.1.The GUI interface is shown in Fig.2.The control system has being stably run since installed in Aug.2017.展开更多
文摘A SFC-ES (Electrostatic Deflection) position monitoring and limit alarm system was built in 2014. As planned, the motion control part of SFC-ES is going to be upgraded and joined into this system in 2015 to complete a closed loop motion control system[1]. During the HIRFL 2015 summer maintains, this motion control function was realized and tested several times before used to verify the control and detection precision. At present, the overall control accuracy is about 0.2 mm.
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To improve the efficiency of Electron Cooling Control System of CSRm, power supplies control system was designed and set up in September 2015. The control software package is developed with Visual C++, which is able to control and monitor all power supplies. In order to prevent the power supplies’ leakage accident which may cause the breakdown of other device, alarm and interlock-protection functions are added to the software and hardware.
文摘The kicker system in the Heavy Ion Research Facility in Lanzhou (HIRFL) plays an important role in beam extraction and injection between two cooling storage rings (CSRs). The old kicker control system which has been operated over 5 years cannot satisfy the requirements of current special physics experiments. The main reason is the 5 ns time precision restricts the improvement of the precision for the phase detection of the beam bunches.
文摘The SFC extraction electrostatic deflection plate is located inside the SFC chamber and it is responsible for theSFC beam extraction. Before the SFC-ES position monitoring system was build, the actual position of the cuttingpole and the high voltage cathode pole cannot be "seen" for beam tuning stuff. So they can only tuning the beam"blindly". This is very dangerous, in case of over adjusting the pole, serious damage may be caused. To avoid thiskind of damage, a route limit monitoring system was built in 2012. Using this system, the beam tuning stuff canget the information whether the cutting pole/the high voltage cathode pole is reaching the route limit. If the polehas reached the limit, there will be alarm information in the GUI interface to inform the beam tuning stuff to stopthe motor and change the moving direction. Although this can prevent big damage, precision position detectionfunction cannot be reached, and the SFC extraction electrostatic deflection plate still should be pulled out to checkthe position manually.
文摘In the project of Heavy Ion Medicine Machine, the electrostatic septum is one of the important components ofsynchrotron which will be used for beam slow extraction. The maximum electric field is 85 kV/cm, the maximumvoltage is 140 kV, and the good electric field area is (1020) mm 40 mm. When fabrication of electrostaticseptum is finished, the high voltage test is required to make sure that the septum could work stably in the highvoltage condition. In 2014, we had finished the high voltage test successfully.
文摘High Intensity Heavy-ion Accelerator Facility(HIAF)is a very complex and huge system which is under construction by the Institute of Modern Physics in Huizhou.In order to realize the safe and reliable operation of this facility.
文摘In order to improve the stability of TR5 experimental terminal control system,a new control system was design and realized in 2018 both in hardware and software level.PLC(Programmable Logic Controller)is used in hardware instead of assembled PC based plug-in board.In software,several sets of control software with independent functions are integrated into one software developed by C++.After the reform of the control system,the upgraded control system has been running steadily for several months.
文摘According to the content of Ar^(39) in the sample to be tested,the age of the sample can be accurately calculated.This method is used in the measurement of glacial age,the measurement of ancient fossils,etc.So the Ar39 ion source has been established to meet the requirement of ice age survey and fossil survey.The software of the Ar^(39) ion source control system is based on EPICS(Experimental Physics and Industrial Control System)architecture.It mainly consists of two layers:IOC layer and an layer.The OPI layer also includes two layers:Channel Access(CA)client interface and application software.The IOC layer includes six layers:Channel Access(CA)server interface,database access interface,dynamic database,record support module,device support module and device driver.
文摘DR(Dielectronic Recombination)and CSRe cluster internal target are two of the important experiment terminals in HIRFL(Heavy Ion Research Facility in Lanzhou).Both terminals have moving detectors,which need to be pushed in or pulled out remotely.Since the old control system has lot of inconvenience such as the decline of control accuracy and running instability,a set of new motion control system is design and realized in 2018.
文摘The experimental research project of single event effect source technology is a national key project of the“Core Electronic Devices,High-end Universal Chips and Basic Software Products”Major National Science and Technology Projects.This research is aiming at studying the single event effect of high energy heavy ions with wide LET value.A new experimental terminal is going to be built to test researches on this area.This new terminal mainly uses the slowextraction high-energy heavy ion beam from the HIRFL CSRm.The beam will be used to pass through RIBLL2 beam transmission line and then pass through a series of focusing and deflection elements and it will finally focus on small beam spot size and scan uniformly at the terminal.The beam is used to carry out the simulation study of radiation resistance of aerospace devices.
文摘A FPGA based time-to-digital converter(TDC)with high precision was designed and realized.A technique that combines coarse time counting and fine time measurement was adopted to achieve a large time measurement range and a fine time resolution.The method of“wave-union”was used in the time interpolation to improve the time resolution.The performance of TDC was tested under lab conditions and the results show that the time resolution of TDC is less than 40 ps.It has been applied for pulse width(time-over-threshold,TOT)measurement.
文摘The project of design and build of an electrostatic spectrum motion control system for Northwest Institute of Nuclear Technology started in 2016 and the major offline test work was finished in 2017.The structure of this electrostatic spectrum is similar with the electrostatic spectrum used in CSR and HIMM facility.It has 2 moving part,an anode frame and a high voltage electrode.Each moving part is driven by 2 motors.Besides these 4 motors,the controll devices also include 8 limit switches and 4 resistance rulers.The 8 limit switches are used to define the travel limit position of the moving part and the 4 resistance rulers are used to get the voltage values which are correspond with the relative position of each moving components.The control precision of this system is 0.1 mm.
文摘Low Energy intense-highly-charged ion Accelerator Facility(LEAF)is national major research equipment development project Its construction is of great scientific significance.It can be used for nuclear astrophysics,radiation physics,etc.There are four parts of it,they are superconducting ion source,high voltage platform and beam line,RFQ accelerator,and experimental terminal.Motion control system is an important part of it,mainly used for gas intake control,moving electrode sputter control beam slits and bias voltage control.
文摘To establish the sputter ion pump remote control system for TR5 and TR6 of HIRFL(Heavy Ion Research Facility in Lanzhou),EPICS(Experimental Physics And Industrial Control System)is adopted to development new control system.Beckhoff PLC and self-designed hardware module have been used to build the hardware platform and the whole system structure is established based on field bus and EtherCAT(Ethernet for Control Automation Technology)technology.EtherCAT is an ideal Ethernet solution for industrial automation,characterized by outstanding performance and particularly simple handling.In the realization process of the system,IOC record device support and PV definition are achieved.At the same time,we have developed a client application in the CSS environment.In this sputter ion pump control system,we realized the basic interlocking protection function in both of hardware and software.The photo of hardware module is shown in Fig.1.The GUI interface is shown in Fig.2.The control system has being stably run since installed in Aug.2017.
