Study of Buncher Efficiency in Axial Injection System of SFC

ZHANG Jin-Quan; LI Zhi-Hui; SONG Ming-Tao; YIN Quan-Min; ZHAO Hong-Wei

Chinese Physics C> 2006, Vol. 30> Issue(8) : 788-791

Study of Buncher Efficiency in Axial Injection System of SFC

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

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Abstract：
In order to reduce the influence of the stray electric field of the buncher in the axial injection system of SFC and to improve the injection efficiency of SFC, the existing buncher electrode is investigated and a new electrode is designed. The influences of the electric field to the beams for the both cases are simulated. The simulation results show that the bunching efficiency is improved from 55% to 74% with the new electrode. At the same time, the influence of the space charge is computed and according to the results, the location of the buncher is readjusted too.

References

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. TANG J Y, LEI W, WANG Y F. A New Buncher Systemfor SFC. 14th International Conference on Cyclotrons andtheir Applications. Faure: South Africa, 1995. 265-2682. TANG J Y, JIANG J Z, SHI A M et al. Nuclear Tech-niques, 2000, 23(7): 475-478(in Chinese)(唐靖宇,蒋君章，石爱民等.核技术200023(7): 475-478)3. TANG J Y, JIANG J Z, SHI AMet al. Nuclear Instrumentsand Methods in Physics Research, 2000, A455: 533-5384. Chabert A et al. Nucl. Instrum. Methods. in Phys. Res.,1999, A423: 7-15

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ZHANG Jin-Quan, LI Zhi-Hui, SONG Ming-Tao, YIN Quan-Min and ZHAO Hong-Wei. Study of Buncher Efficiency in Axial Injection System of SFC[J]. Chinese Physics C, 2006, 30(8): 788-791.

ZHANG Jin-Quan, LI Zhi-Hui, SONG Ming-Tao, YIN Quan-Min and ZHAO Hong-Wei. Study of Buncher Efficiency in Axial Injection System of SFC[J]. Chinese Physics C, 2006, 30(8): 788-791. shu

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Received: 2005-11-04
Revised: 2006-01-09

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of Buncher Efficiency in Axial Injection System of SFC

Corresponding author: ZHANG Jin-Quan,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 2005-11-04
Accepted Date: 2006-01-09
Available Online: 2006-08-05

Abstract: In order to reduce the influence of the stray electric field of the buncher in the axial injection system of SFC and to improve the injection efficiency of SFC, the existing buncher electrode is investigated and a new electrode is designed. The influences of the electric field to the beams for the both cases are simulated. The simulation results show that the bunching efficiency is improved from 55% to 74% with the new electrode. At the same time, the influence of the space charge is computed and according to the results, the location of the buncher is readjusted too.