Experimental Research on Simultaneous Acceleration of Positive and Negative Ions with Equal q/m in an ISR RFQ

REN XiaoTang; Lu YuanRong; YU JinXiang; WANG ZhongYi; LI WeiGuo; GUO JuFang; SONG ZhiZhong; LI YuSong; FANG JiaXun; CHEN JiaEr

Chinese Physics C> 2000, Vol. 24> Issue(4) : 347-351

Experimental Research on Simultaneous Acceleration of Positive and Negative Ions with Equal q/m in an ISR RFQ

Institute of Heavy Ion Physics, Department of Technical Physics, Peking University, Beijing 100871, China

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Abstract：
Experimental studies on simultaneous acceleration of O⁺ and O^－ beams have been carried out in a 26MHz integrated SPlit Ring (ISR) RFQ at Peking University. Both O⁺ and O^－ beams can be accelerated to more than 300keV. Output macro-pulse of O⁺ and O^－ was gotten simultaneously at the exit of RFQ when O⁺ and O^－ beams were inputted into the RFQ cavity at the same time. The output micro-pulse beams Of O⁺ and O^－ were measured with a fast target after O⁺ and O^－ beams were accelerated simultaneously in the RFQ. The frequency of micro-pulse is as same as the RF frequency applied to RFQ. The phase difference of O⁺ and O^－ micro-pulse is n that coincides with the anticipated results. The beam current gotten from simultaneous acceleration of O⁺ and O^－ beams are much stronger than that gotten from acceleration of O⁺ or O^－ only.

References

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CHEN C E, LI W G, YU J X et al. Study of ISR Heavy Ion RFQ Accelerator at Peking University. 6th China–JapanSymp. on Accelerators. 1996. 58 2 LU Y R, GUO J F et al. Nucl. Instrum. And Meth., 1999, A420:1–5 3 YU JinXiang, CHEN JiaEr et al. Trends in Nuclear Physics, 1996, 13(2):34 (于金祥,陈佳洱等核物理动态,1996,13(2):34) 4 CHEN C E, FANG J X et al. Experiment Studies on the Acceleration of Positive Negative Ions With a Heavy Ion ISRRFQ. 5th EPAC 96. 2702

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REN XiaoTang, Lu YuanRong, YU JinXiang, WANG ZhongYi, LI WeiGuo, GUO JuFang, SONG ZhiZhong, LI YuSong, FANG JiaXun and CHEN JiaEr. Experimental Research on Simultaneous Acceleration of Positive and Negative Ions with Equal q/m in an ISR RFQ[J]. Chinese Physics C, 2000, 24(4): 347-351.

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Received: 1999-03-11
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

Experimental Research on Simultaneous Acceleration of Positive and Negative Ions with Equal q/m in an ISR RFQ

Corresponding author: REN XiaoTang,

Institute of Heavy Ion Physics, Department of Technical Physics, Peking University, Beijing 100871, China

Received Date: 1999-03-11
Accepted Date: 1900-01-01
Available Online: 2000-04-05

Abstract: Experimental studies on simultaneous acceleration of O⁺ and O^－ beams have been carried out in a 26MHz integrated SPlit Ring (ISR) RFQ at Peking University. Both O⁺ and O^－ beams can be accelerated to more than 300keV. Output macro-pulse of O⁺ and O^－ was gotten simultaneously at the exit of RFQ when O⁺ and O^－ beams were inputted into the RFQ cavity at the same time. The output micro-pulse beams Of O⁺ and O^－ were measured with a fast target after O⁺ and O^－ beams were accelerated simultaneously in the RFQ. The frequency of micro-pulse is as same as the RF frequency applied to RFQ. The phase difference of O⁺ and O^－ micro-pulse is n that coincides with the anticipated results. The beam current gotten from simultaneous acceleration of O⁺ and O^－ beams are much stronger than that gotten from acceleration of O⁺ or O^－ only.