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兰州放射性束流线上速度选择器的设计制造及初步调试
Construction and Test of Wien-Filter Combined with RIBLL
【摘要】 描述了一台在兰州放射性次级束流线(RIBLL)前端安装的速度选择器系统,该系统由2个三组合四极透镜组和1个正交的电磁场组成,将用于熔合蒸发余核的研究.介绍了该设备的设计思路、基本参数和本底抑制能力、传输效率、角度接收度以及动量接收度的测量结果.结果表明该系统达到设计要求,进行适当改造后可用于Z≤110的超重核素的研究和中重核区滴线核的研究.
【Abstract】 A recoil separator Wien-filter which was developed for the Radioactive Ion Beam Line in Lanzhou (RIBLL) as an extension is described.It consists of 2 quadruple triplets and a standard Wien-filter.It was designed for study of the fusion-evaporation reactions.The overall design,background suppression,the transmission efficiency,the angular acceptance and the momentum acceptance have been described.All the performances fulfil the designed requirements. Based on the test results,with some modifications the investigations of the nuclei with Z≤110 and the drip-line nuclei in the medium-heavy mass region can be carried out with this facility.
【Key words】 RIBLL; supper-heavy nucleus; recoil separator; Wien-filter;
- 【文献出处】 高能物理与核物理 ,High Energy Physics and Nuclear Physics , 编辑部邮箱 ,2007年07期
- 【分类号】TL503.2
- 【被引频次】1
- 【下载频次】116