R&amp;D Status of SFRFQ Accelerating System

CHEN Jia-Er; GUO Zhi-Yu; LU Yuan-Rong; GAO Shu-Li; ZHU Kun; WANG Zhi; YAN Xue-Qing; PENG Shi-Xiang; ZHAO Jie; GUO Ju-Fang; LI Wei-Guo; YU Mao-Lin; YUAN Zhong-Xi; FANG Jia-Xun

Chinese Physics C> 2008, Vol. 32> Issue(S1) : 231-233

R&D Status of SFRFQ Accelerating System

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A new linear accelerating structure SFRFQ was proposed to transfer the RFQ inter-vane voltage to the inter-longitudinal accelerating gap voltage so as to improve the acceleration efficiency. A SFRFQ prototype is being constructed to explore its feasibilities, which will be installed behind the 1MeV ISR RFQ and accelerates the O⁺ beam from 1MeV to 1.6MeV. A high power SFRFQ model cavity was designed and tested, which has proved that an accelerating voltage higher than 70kV could be applied. A magnetic triplet matching section was designed to realize the beam matching between 1MeV ISR RFQ and SFRFQ. The upgrading of 1MeV ISR RFQ has been carried out smoothly, and its output beam current has reached 2mA.

References

[1]

. CHEN Jia-Er et al. Progress in Natural Science, 2002, 12(1): 23(in Chinese)(陈佳洱等. 自然科学进展, 2002, 12(1): 23)2. LU Y R et al. Nucl. Instrum. Methods, 2003, A515(3):394-4013. ZHANG Meng et al. Chinese Physics C (HEP NP), 2008,32(Supp.Ⅰ): 220(in Chinese)(张萌等. 中国物理C, 2008, 32(增刊): 220)4. ZHANG Meng, LU Yuan-Rong, PENG Shi-Xiang et al.Chinese Physics C (HEP NP), 2008, 32(Supp.Ⅰ): 262(in Chinese)(张萌, 陆元荣, 彭士香等. 中国物理C, 2008, 32(增刊): 262)5. YAN Xue-Qing et al. Nucl. Instrum. Methods, 2005,A539(3): 606-6126. WANG Zhi. Acta Phisica Sinica, 2006, 55(11): 5575-5578(in Chinese)(王智等. 物理学报, 2006, 55(11): 5575—5578)7. SONG Xiang-Xiang et al. Acta Scientiarum Naturalium Universitatis Pekinensis, 2006, 42(3): 339-342(in Chinese)(宋翔翔等. 北京大学学报(自然科学版), 2006, 42(3): 339—342)8. WANG Zhi et al. Nucl. Instrum. Methods, 2006, A572(2):596-600

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CHEN Jia-Er, GUO Zhi-Yu, LU Yuan-Rong, GAO Shu-Li, ZHU Kun, WANG Zhi, YAN Xue-Qing, PENG Shi-Xiang, ZHAO Jie, GUO Ju-Fang, LI Wei-Guo, YU Mao-Lin, YUAN Zhong-Xi and FANG Jia-Xun. R&D Status of SFRFQ Accelerating System[J]. Chinese Physics C, 2008, 32(S1): 231-233.

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Received: 2008-01-10
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

R&D Status of SFRFQ Accelerating System

Corresponding author: CHEN Jia-Er,

Received Date: 2008-01-10
Accepted Date: 1900-01-01
Available Online: 2008-01-04

Abstract: A new linear accelerating structure SFRFQ was proposed to transfer the RFQ inter-vane voltage to the inter-longitudinal accelerating gap voltage so as to improve the acceleration efficiency. A SFRFQ prototype is being constructed to explore its feasibilities, which will be installed behind the 1MeV ISR RFQ and accelerates the O⁺ beam from 1MeV to 1.6MeV. A high power SFRFQ model cavity was designed and tested, which has proved that an accelerating voltage higher than 70kV could be applied. A magnetic triplet matching section was designed to realize the beam matching between 1MeV ISR RFQ and SFRFQ. The upgrading of 1MeV ISR RFQ has been carried out smoothly, and its output beam current has reached 2mA.