The Construction Of Remote Control System For Proton Injector Of Shanghai Proton Therapy Facility

The Bragg peak distribution characteristics of protons in human tissues and cells make proton therapy tumor with higher treatment precision and less side effect.The tumor cure rate is higher than traditional radiation or radiopharmaceuticals therapy.It has become one of the most advanced methods of tumor treatment in the world.Proton therapy technology has also been introduced and studied vigorously in China.Shanghai proton therapy facility is the first self-developed proton therapy facility in China.It's the beginning of China's proton therapy facility,and its completion will fill the blank in this field of our country and is of great significance.The precise treatment of tumor requires the facility to provide high quality proton beam,and the continuous and stable high quality beam output of the proton injector is also the prerequisite of the facility's normal work.Therefore,the construction of a perfect and reliable control system for proton injector is the basis for the stable and coordinated operation of the system.Meanwhile,in order to achieve the remote control of proton injector and overall debugging of Shanghai proton therapy facility,we need to construct a remote control system for proton injector.The overall structure of this thesis first introduces the development of proton therapy at home and abroad as well as the first domestic proton therapy facility,fully investigate the accelerator control technology and the accelerator control system development tool.Then it introduces the structure of the proton injector hardware control system and the performance and functional requirements of the remote control system are proposed.Next,remote control system for proton injector is implemented based on the above foundation.It's the main work of this thesis.In the Linux system environment,Python programming language is applied to implement the remote control system for proton injector.The communication between local control system and remote control system is by Socket based on C/S mode.At the same time,the remote control system is connected to the control system based on EPICS of Shanghai proton therapy facility in its central control room.EPICS's OPI tool EDM is applied to implement the remote control interface.In the remote control interface,the real-time state of proton injector can be monitored and the important parameters can be set remotely.Finally,the work of this thesis is summarized and prospected.