Study and Design of the Axial Injection System at SFC

TANG JingYu; JIANG JunZhang; LI ZhiHui; XU XiangYang; WANG YiFang; YIN QuanMin

Chinese Physics C> 2000, Vol. 24> Issue(12) : 1173-1178

Study and Design of the Axial Injection System at SFC

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

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The article presents the study and new development at SFC, the HIRFL injector cyclotron. It includes the new central region, the new buncher system and the new axial injection line. It introduces the half-frequency bunching method to increase the longitudinal matching efficiency between the injector and the main cyclotron and the special treatment for the space charge effect by using two injection parameters. The constant orbit acceleration with small variation is introduced to solve the contradiction of the lower RF voltage and less turn number. Two on-line ECR ion sources, high charge state resolving power and other improvements on the injection line have been included.

References

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WEI B W. In: Martin B, Ziegler K ed. Proceedings of 12th International Conference on Cyclotrons and Their Applications. Singapore: World Scientific Publishing Co., 1989. 9–12 2 YE F, MA Z R, YIN Q M et al. In: Dutto G,Craddock M K ed. Proceedings of 13th Intemational Conference on Cyclotrons and Their Applications. Singapore: World Scientific Publishing Co., 1993. 78–81 3 TANG J Y. Ph. D. Thesis. Institute of Modern Physics,The Chinese Academy of Sciences(in Chinese), 1997. 2(唐靖宇.博士论文.中国科学院近代物理研究所,1997年2月) 4 TANG J Y,ZHAO X Q. In:Cornell J ed. Proceedings of 14th International Conference on Cyclotrons and Their Applications. Singapore: World Scientific Publishing Co., 1995. 206–209 5 MA Z R. In: WEI B W ed. Proceedings of Heavy Ion Research Facility in Lanzhou, Vol. 10. Beijing: Atomic Press(in Chinese), 1993. 35–40(马钟仁.见:魏宝文主编.兰州重离子加速器进展报告,第 10卷.北京:原子能出版社. 1991.35–40) 6 TANG J Y, LEI W,WANG Y F. In: CORNELL J C ed. Proceedings of 14th International Conference on Cyclotrons andTheir Applications. Singapore: World Scientific. 1995. 265–268 7 JIANG J Z, SHI A M, XU Z et al. In: SUN G Q, LI Z D ed. Proceedings of 6th China–Japan Joint Symposium on Accelerators for Nuclear Science and Their Applications. Chengdu: Sichuan Union University. 1996. 337–3408 TANG J Y, LEI W,WANG Y F. High Energy Phys. and Nucl. Phys. (in Chinese), 1998,22(7): 745–754(唐靖宇,雷文,王义芳.高能物理与核物理,1998,22(7):745–754)

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TANG JingYu, JIANG JunZhang, LI ZhiHui, XU XiangYang, WANG YiFang and YIN QuanMin. Study and Design of the Axial Injection System at SFC[J]. Chinese Physics C, 2000, 24(12): 1173-1178.

TANG JingYu, JIANG JunZhang, LI ZhiHui, XU XiangYang, WANG YiFang and YIN QuanMin. Study and Design of the Axial Injection System at SFC[J]. Chinese Physics C, 2000, 24(12): 1173-1178. shu

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Received: 1999-10-08
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

Study and Design of the Axial Injection System at SFC

Corresponding author: TANG JingYu,

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

Received Date: 1999-10-08
Accepted Date: 1900-01-01
Available Online: 2000-12-05

Abstract: The article presents the study and new development at SFC, the HIRFL injector cyclotron. It includes the new central region, the new buncher system and the new axial injection line. It introduces the half-frequency bunching method to increase the longitudinal matching efficiency between the injector and the main cyclotron and the special treatment for the space charge effect by using two injection parameters. The constant orbit acceleration with small variation is introduced to solve the contradiction of the lower RF voltage and less turn number. Two on-line ECR ion sources, high charge state resolving power and other improvements on the injection line have been included.