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介绍了兰州重离子加速器储存环(HIRFL-CSR)引出切割磁铁电源的工作原理及进行数字化升级方案。采用了基于FPGA(Field Programmable Gate Array)的可编程片上系统(SOPC)、NIOSII的软件架构及硬件描述语言编写的多环调节算法,探讨了在FPGA上实现加速器电源控制算法的一些关键问题。对引出切割磁铁电源进行数字化升级后,HIRFL-CSR的主环束流引出过程更加可靠,同时提高了实验终端束斑位置的稳定性。本工作为HIRFL-CSR磁铁电源的全面数字化及重离子治癌数字电源的研发提供了重要的技术参考。
This paper introduces the working principle of Lanzhou Heavy Ion Accelerator Storage Ring (HIRFL-CSR) and the digital upgrade scheme. This paper presents a multi-loop adjustment algorithm based on Field Programmable Gate Array (FPGA) -based programmable system-on-chip (SOPC), NIOSII software architecture and hardware description language, and discusses some key issues in accelerating FPGA power control algorithm. After the digitized upgrade of the power supply of the cutting magnet, HIRFL-CSR’s main ring beam extraction process more reliable, while improving the experimental terminal beam spot position stability. This work provides an important technical reference for the comprehensive digitalization of HIRFL-CSR magnet power supply and the research and development of heavy ion cancer treatment digital power supply.