兰州重离子直线加速器设计初步  

Development of the Lanzhou Heavy Ion Linac

作　　者：李智慧[1] 张金泉[1] 刘勇[1] 夏佳文[1] 赵红卫[1] 詹文龙[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000

出　　处：《高能物理与核物理》2006年第z1期129-131,共3页High Energy Physics and Nuclear Physics

摘　　要：兰州重离子直线加速器是作为兰州重离子冷却储存环(CSR)未来的注入器而开始的一个新项目,其目的是为CSR提供更好束流品质及更高流强的束流,更加充分的发挥CSR的潜能,同时也可以为超重等研究直接提供束流．其设计最小荷质比为1／6,引出能量为16MeV／u,设计流强为1A·μA,工作频率为100MHz及其倍频200MHz．采用超导ECR离子源、RFQ及IH型DTL加速结构的方式,设计总长度小于40m．整个工程分阶段进行,现阶段的工作重点是第一个IH腔体之前的工作于基频的部分,本文主要介绍这部分的动力学设计及整台机器的基本参数．The heavy ion linac in Lanzhou is designed as a future injector for the Cooling Storage Ring (CSR). In order to keep the total machine within 40 meters, the IH (Interdigital H-type) structure is adopted for its higher acceleration gradient compared with the traditional DTL structure. The designed minimum charge over mass ratio is 1/6, the output energy is 16MeV/u and the beam current is 1A·μA. The RFQ and the first DTL tank will work at 100MHz, and the other DTL tanks will work at the double frequency. The design criteria, main parameters and the detailed beam dynamic design are introduced in this paper.

关 键 词：重离子直线加速器 IH型DTL RFQ加速器 

分 类 号：TL53[核科学技术—核技术及应用]