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

WANG Zhi-Jun; HE Yuan; LIU Shu-Hui; DU Xiao-Nan; JIA Huan; LI Chao; WANG Wang-Sheng; CHEN Xi-Meng

doi:10.1088/1674-1137/37/12/127001

Chinese Physics C> 2013, Vol. 37> Issue(12) : 127001 DOI: 10.1088/1674-1137/37/12/127001

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

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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.

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WANG Zhi-Jun, HE Yuan, LIU Shu-Hui, DU Xiao-Nan, JIA Huan, LI Chao, WANG Wang-Sheng and CHEN Xi-Meng. A new compact structure for a high intensity low-energy heavy-ion accelerator[J]. Chinese Physics C, 2013, 37(12): 127001. doi: 10.1088/1674-1137/37/12/127001

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Received: 2013-02-25
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

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

Corresponding author: WANG Zhi-Jun,

Corresponding author: HE Yuan,

Received Date: 2013-02-25
Accepted Date: 1900-01-01
Available Online: 2013-12-05

Abstract: 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.