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RF system of HIRFL-CSRe

RF system of HIRFL-CSRe
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摘要 The operational frequency range of RF system at HIRFL-CSRe (cooling storage experimental ring) is 0.5-2 MHz, and it works in fundamental and second harmonic. It includes five sections: ferrite ring loaded RF cavity, RF generator, low-level system, computer system and cavity cooling. The cavity is based on the coaxial resonator type which is short at the terminal with one gap and loaded with domestic ferrite rings. The RF generator is designed in a push-pull mode. The low-level control system is based on PID, DSP, FPGA and DDS9854+USB interface and has three feedback loops. This RF system is designed independently and manufactured domestically. For the first time, it realized the pulse modulation, variable harmonic and CW operational modes. The maximum output power is up to 70 kW and the 10 kV RF voltage is used to capture the irradiative beam and decelerate the beam from 400 to 30 MeV/u. The operational frequency range of RF system at HIRFL-CSRe (cooling storage experimental ring) is 0.5-2 MHz, and it works in fundamental and second harmonic. It includes five sections: ferrite ring loaded RF cavity, RF generator, low-level system, computer system and cavity cooling. The cavity is based on the coaxial resonator type which is short at the terminal with one gap and loaded with domestic ferrite rings. The RF generator is designed in a push-pull mode. The low-level control system is based on PID, DSP, FPGA and DDS9854+USB interface and has three feedback loops. This RF system is designed inde- pendently and manufactured domestically. For the first time, it realized the pulse modulation, variable harmonic and CW oper- ational modes. The maximum output power is up to 70 kW and the 10 kV RF voltage is used to capture the irradiative beam and decelerate the beam from 400 to 30 MeV/u.
出处 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2012年第1期44-47,共4页 中国科学:物理学、力学、天文学(英文版)
关键词 CSRe RF second harmonic pulse modulation CAPTURE 射频系统 射频发生器 最大输出功率 冷却储存 二次谐波 计算机系统 PID控制 USB接口
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  • 1约瑟芬JC.射频电路设计(第3版)[M].北京:电子工业出版社,2001.309-317.
  • 2Gardner I S K. Ferrite dominated cavity[R]. Chilton England: Rutherford Appleton Laboratory.
  • 3Roberts J. High frequency application of ferrites[M]. England: The English Universities Press Ltd, 1960.

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