Radio-Frequency Power Test of a Four-Rod RFQ Accelerator for PKUNIFTY
ZENG Hong-Jin1,2, LIU Ge1, LU Yuan-Rong1**, CHEN Wei, ZHOU Quan-Feng1, ZHU Kun1, XIA Wen-Long1, SHI Ben-Liang1, GAO Shu-Li1, YAN Xue-Qing1, GUO Zhi-Yu1, CHEN Jia-Er1
1State Key Laboratory of Nuclear Physics and Technology & School of Physics, Peking University, Beijing 100871 2Northwest Institute of Nuclear Technology, Urumchi 841700
Radio-Frequency Power Test of a Four-Rod RFQ Accelerator for PKUNIFTY
ZENG Hong-Jin1,2, LIU Ge1, LU Yuan-Rong1**, CHEN Wei, ZHOU Quan-Feng1, ZHU Kun1, XIA Wen-Long1, SHI Ben-Liang1, GAO Shu-Li1, YAN Xue-Qing1, GUO Zhi-Yu1, CHEN Jia-Er1
1State Key Laboratory of Nuclear Physics and Technology & School of Physics, Peking University, Beijing 100871 2Northwest Institute of Nuclear Technology, Urumchi 841700
Abstract：A four-rod radio frequency quadruple (RFQ) accelerator is designed, manufactured, installed and commissioned for the Peking University Neutron Imaging Facility (PKUNIFTY). This 2699.6-mm-long RFQ accelerator with the mean aperture radius of 3.88 mm is operating at 201.5 MHz in pulse mode. An inter-electrode voltage of 70 kV is needed to accelerate the injected 50 keV 40 mA D+ ions up to 2 MeV. We present the rf system, high rf power feeder design, lower rf measurements and higher rf power test. Especially, the rf commissioning was carried out with rf power up to ～280 kW and duty factor of 4%. The measured x-ray spectrum shows that the rf inter-electrode voltage reaches 70.7 kV. It is found that the specific shunt impedance of the RFQ cavity reaches 52.7 kΩ⋅m.
ZENG Hong-Jin, LIU Ge, LU Yuan-Rong, CHEN Wei, ZHOU Quan-Feng, ZHU Kun, XIA Wen-Long, SHI Ben-Liang, GAO Shu-Li, YAN Xue-Qing, GUO Zhi-Yu, CHEN Jia-Er. Radio-Frequency Power Test of a Four-Rod RFQ Accelerator for PKUNIFTY[J]. 中国物理快报, 2012, 29(6): 62901-062901.
ZENG Hong-Jin, LIU Ge, LU Yuan-Rong, CHEN Wei, ZHOU Quan-Feng, ZHU Kun, XIA Wen-Long, SHI Ben-Liang, GAO Shu-Li, YAN Xue-Qing, GUO Zhi-Yu, CHEN Jia-Er. Radio-Frequency Power Test of a Four-Rod RFQ Accelerator for PKUNIFTY. Chin. Phys. Lett., 2012, 29(6): 62901-062901.
LU Xiang-Yang;QUAN Sheng-Wen;ZHANG Bao-Cheng;HAO Jian-Kui;ZHU Feng;LIN Lin;XU Wen-Can;WANG Er-Dong; WANG Fang;JIN Song;XIN Tian-Mu;YAO Zhong-Yuan; CHEN Jia-Er;ZHAO Kui. The First Nine-Cell TESLA Cavity Made in China[J]. 中国物理快报, 2008, 25(11): 3940-3941.
2012, Vol. 29 
