Development of an in-flight optical ConeTrap to measure fundamental nuclear properties in exotic super-asymmetric fission fragments

该项目将使用新颖的离子操作技术（保罗陷阱、静电陷阱和射频冷却器）与精密激光光谱相结合，测量外来超不对称裂变碎片的基本核性质（以及超低核激发态的原子核过程）。该项目将以曼彻斯特为基地，在芬兰Jyvaskyla的IGISOL设施进行在线研究，也可能在欧洲核子研究中心的ISOLDE进行。这项研究将需要重新设计最近建造的静电ConeTrap，并首次使用该设备来促进高效激光光谱学。开发的系统将利用超精细结构和同位素位移对核参数进行精确测量。在新的工作中，目标是实现比我们以前达到的更高数量级的光谱效率，并在我们的在线同位素分离器上调试能够研究最弱产生和最高Z系统的设备。

The project will use novel ion manipulation techniques (Paul traps, electrostatic traps and RF coolers) in conjunction with precision laser spectroscopy to measure fundamental nuclear properties in exotic super-asymmetric fission fragments (and atomic-nuclear processes in ultra-low lying nuclear excited states).The project will be based in Manchester with on-line research conducted at the IGISOL facility, JYFL, Jyvaskyla, Finland and potentially at ISOLDE, CERN. The research will require the redesign of a recently constructed electrostatic ConeTrap and the use of this device, for the first time, to facilitate high efficiency laser spectroscopy. The developed system will then be exploited to make precision measurements of nuclear parameters via the hyperfine structure and isotope shift. In the new work the objective is to achieve spectroscopic efficiencies at an order of magnitude higher than that we have previously attained and commission apparatus capable of studying the most weakly produced and highest Z systems available at our on-line isotope separators.