Beam dynamics and commissioning of CW RFQ for a compact deuteron-beryllium neutron source
文献类型：期刊论文
| 作者 | Dou, Wei-Ping1,2; Chen, Wei-Long1,2; Wang, Feng-Feng1; Wang, Zhi-Jun1; Li, Chen-Xing1; Wu, Qi1; Wang, Chao1; Wang, Wang-sheng1; Jia, Huan1; Zhang, Peng1 |
| 刊名 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
 |
| 出版日期 | 2018-09-21 |
| 卷号 | 903页码:85-90 |
| 关键词 | CW RFQ Internal buncher Beam commissioning |
| ISSN号 | 0168-9002 |
| DOI | 10.1016/j.nima.2018.06.044 |
| 通讯作者 | Wang, Zhi-Jun(wangzj@impcas.ac.cn) |
| 英文摘要 | The Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) is building a compact neutron source using a superconducting linac. The injector RFQ will operate in continuous wave (CW) mode, accelerating a 10-mA deuteron beam from 20 keV/u to 1.5 MeV/u. To minimize the possibility of beam loss in the downstream superconducting linac and maintain high acceleration efficiency, we take the 99.9% longitudinal beam emittance as the key optimization parameter for the beam dynamics design of the RFQ, and include an internal buncher to reduce the longitudinal beam emittance. This paper describes the design procedures, beam dynamics simulations and preliminary beam commissioning results for this RFQ. Simulation results show that 99.9% longitudinal beam emittance at the RFQ exit is optimized to 3.5 pi mm mrad, which is 0.13 times the longitudinal acceptance of the downstream superconducting linac. Beam commissioning results demonstrate that the RFQ can accelerate 7.8 mA H-2(+) to 3.11 MeV. The transmission efficiency from a Faraday cup before the RFQ to the beam dump after the RFQ is 97.6%. The measured transmission efficiency agrees well with simulation results at different values for the inter-vane voltage. |
| 收录类别 | SCI |
| WOS关键词 | CONCEPTUAL DESIGN |
| WOS研究方向 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics |
| WOS类目 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Nuclear ; Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000444422200011 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558310 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wang, Zhi-Jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 73000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dou, Wei-Ping,Chen, Wei-Long,Wang, Feng-Feng,et al. Beam dynamics and commissioning of CW RFQ for a compact deuteron-beryllium neutron source[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2018,903:85-90. |
| APA | Dou, Wei-Ping.,Chen, Wei-Long.,Wang, Feng-Feng.,Wang, Zhi-Jun.,Li, Chen-Xing.,...&He, Yuan.(2018).Beam dynamics and commissioning of CW RFQ for a compact deuteron-beryllium neutron source.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,903,85-90. |
| MLA | Dou, Wei-Ping,et al."Beam dynamics and commissioning of CW RFQ for a compact deuteron-beryllium neutron source".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 903(2018):85-90. |
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来源：寒区旱区环境与工程研究所
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