A new compact structure for a high intensity low-energy heavy-ion accelerator

A new compact accelerating structure named Hybrid RFQ is proposed to accelerate a high-intensity low-energy heavy ion beam in HISCL （High Intensive heavy ion SuperConducting Linear accelerator）, which is an injector of HIAF （Heavy Ion Advanced Research Facility）. It is combined by an alternative ser...

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Published inChinese physics C Vol. 37; no. 12; pp. 84 - 87
Main Author 王志军 何源 A. A. Kolomiets 刘淑会 杜晓楠 贾欢 李超 王旺生 陈熙萌
Format Journal Article
LanguageEnglish
Published 01.12.2013
Subjects
Acceleration
Accelerators
Beams (radiation)
Dynamics
Injectors
Ion beams
Low energy
Simulation
低能量
射频仿真
束流动力学
结构紧凑
超导直线加速器
重离子加速器
重离子束
高强度
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Summary:A new compact accelerating structure named Hybrid RFQ is proposed to accelerate a high-intensity low-energy heavy ion beam in HISCL （High Intensive heavy ion SuperConducting Linear accelerator）, which is an injector of HIAF （Heavy Ion Advanced Research Facility）. It is combined by an alternative series of acceleration gaps and RFQ sections. The proposed structure has a high accelerating ability compared with a conventional RFQ and is more compact than traditional DTLs. A Hybrid RFQ is designed to accelerate 238U34＋ from 0.38 MeV/u to 1.33 MeV/u. The operation frequency is described to be 81.25 MHz at CW （continuous wave） mode. The design beam current is 1.0 mA. The results of beam dynamics and RF simulation of the Hybrid RFQ show that the structure has a good performance at the energy range for ion acceleration. The emittance growth is less than 5% in both directions and the RF power is less than 150 kW. In this paper, the results of beam dynamics and RF simulation of the Hybrid RFQ are presented.
Bibliography:Hybrid RFQ, high intensity, heavy ion linac, compact structure
11-5641/O4
WANG Zhi-Jun, HE Yuan, A.A. Kolomiets, LIU Shu-Hui, DU Xiao-Nan, JIA Huan, LI Chao, WANG Wang-Sheng, CHEN Xi-Meng（ 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2 School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China 3 University of Chinese Academy of Sciences, Beijing 100049, China 4 Institute for Theoretical and Experimental Physics, Russia）
A new compact accelerating structure named Hybrid RFQ is proposed to accelerate a high-intensity low-energy heavy ion beam in HISCL （High Intensive heavy ion SuperConducting Linear accelerator）, which is an injector of HIAF （Heavy Ion Advanced Research Facility）. It is combined by an alternative series of acceleration gaps and RFQ sections. The proposed structure has a high accelerating ability compared with a conventional RFQ and is more compact than traditional DTLs. A Hybrid RFQ is designed to accelerate 238U34＋ from 0.38 MeV/u to 1.33 MeV/u. The operation frequency is described to be 81.25 MHz at CW （continuous wave） mode. The design beam current is 1.0 mA. The results of beam dynamics and RF simulation of the Hybrid RFQ show that the structure has a good performance at the energy range for ion acceleration. The emittance growth is less than 5% in both directions and the RF power is less than 150 kW. In this paper, the results of beam dynamics and RF simulation of the Hybrid RFQ are presented.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/37/12/127001