内离子源小型回旋加速器的调试  

Commissioning of Compact Cyclotron with Internal Ion Source

作　　者：何小中[1] 庞健[1] 赵良超[1] 马超凡[1] 杨兴林[1] 魏涛[1] 杨振[1] 龙继东[1] 杨国君[1] 李成刚[1] 董攀[1] 李勤[1] 王韬[1] 秦玲[1] 王敏鸿[1] 张开志[1] 石金水[1] 

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621900

出　　处：《原子能科学技术》2015年第B10期587-590,共4页Atomic Energy Science and Technology

摘　　要：2007年底，中国工程物理研究院流体物理研究所开始研制内离子源小型回旋加速器，以服务于PET同位素生产制备。该加速器加速负氢离子，引出质子，设计能量为11MeV、平均流强为50μA。本文介绍该加速器的磁铁、高频腔、离子源的调试和整机的调试。调试结果表明，等时性磁场的积分相移为±9°，高频腔的Q值达到理论Q值的60％，半径60mm处负氢离子流强可达到100～160μA，整机引出的质子束流达到了11MeV和50μA的设计指标。用调试后的整机进行18F同位素生产，18F产量达65．49GBq（1．77Ci）。Since 2007, a compact cyclotron with internal ion source has been developed in Institute of Fluid Physics, China Academy of Engineering Physics for the production of short lived PET isotopes. The designed energy of the cyclotron＇s extracted proton beam is 11 MeV, and the designed current is 50 μA. In this work, the commissioning of the magnet, the RF cavity, the ion source and the full machine were presented. The integral phase shift of the magnetic field is ±9°. The measured Q value is about 60 % of the theoretical value. The intensity of the H- ion beam after one turn of acceleration in the central region is 100-160μA. The designed parameters of extracted proton beam are achieved. Using the extracted proton beam to produce 18F, a yield of 65.49 GBq （1.77 Ci） is achieved.

关 键 词：回旋加速器 离子源 磁铁 中心区 高频腔 调试 

分 类 号：O434.1[机械工程—光学工程]