中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Superconducting ECR ion source: From 24-28 GHz SECRAL to 45 GHz fourth generation ECR

文献类型:会议论文

作者Wu, W.2; Sun, L. T.2; Guo, J. W.2; Zhang, W. H.2; Xie, D. Z.1; Ravaioli, E.1; Hafalia, A.1; Juchno, M.1; Sabbi, G.1; Wu, B. M.2
出版日期2018-05
卷号89
期号5
DOI10.1063/1.5017479
英文摘要The development of superconducting ECR source with higher magnetic fields and higher microwave frequency is the most straight forward path to achieve higher beam intensity and higher charge state performance. SECRAL, a superconducting third generation ECR ion source, is designed for 24-28 GHz microwave frequency operation with an innovative magnet configuration of sextupole coils located outside the three solenoids. SECRAL at 24 GHz has already produced a number of record beam intensities, such as Ar-40(12+) 1.4 emA, Xe-129(26+) 1.1 emA, Xe-129(30+) 0.36 emA, and Bi-209(31+) 0.68 emA. SECRAL-II, an upgraded version of SECRAL, was built successfully in less than 3 years and has recently been commissioned at full power of a 28 GHz gyrotron and three-frequency heating (28 + 45 + 18 GHz). New record beam intensities for highly charged ion production have been achieved, such as 620 e mu A Ar-40(16+), 15 e mu A Ar-40(18+), 146 e mu A Kr-86(28+), 0.5 e mu A Kr-86(33+), 53 e mu A Xe-129(38+), and 17 e mu A (XeD+)-Xe-129-D-42. Recent beam test results at SECRAL and SECRAL II have demonstrated that the production of more intense highly charged heavy ion beams needs higher microwave power and higher frequency, as the scaling law predicted. A 45 GHz superconducting ECR ion source FECR (a first fourth generation ECR ion source) is being built at IMP. FECR will be the world's first Nb3Sn superconducting-magnet-based ECR ion source with 6.5 T axial mirror field, 3.5 T sextupole field on the plasma chamber inner wall, and 20 kW at a 45 GHz microwave coupling system. This paper will focus on SECRAL performance studies at 24-28 GHz and technical design of 45 GHz FECR, which demonstrates a technical path for highly charged ion beam production from 24 to 28 GHz SECRAL to 45 GHz FECR. Published by AIP Publishing.
会议录REVIEW OF SCIENTIFIC INSTRUMENTS
会议录出版者AMER INST PHYSICS
会议录出版地1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
语种英语
资助项目973 Program of China[2014CB845500]
WOS研究方向Instruments & Instrumentation ; Physics
WOS记录号WOS:000433962700008
源URL[http://119.78.100.186/handle/113462/58573]  
专题近代物理研究所_兰州重离子研究装置
通讯作者Zhao, H. W.
作者单位1.Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
2.Chinese Acad Sci, IMP, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式
GB/T 7714
Wu, W.,Sun, L. T.,Guo, J. W.,et al. Superconducting ECR ion source: From 24-28 GHz SECRAL to 45 GHz fourth generation ECR[C]. 见:.

入库方式: OAI收割

来源:近代物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。