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Offline ion source for laser spectroscopy of RI at the SLOWRI
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms ( IF 1.4 ) Pub Date : 2020-11-17 , DOI: 10.1016/j.nimb.2020.10.013
M. Tajima , A. Takamine , M. Wada , H. Ueno

The ion source combining laser ablation of solid targets in helium gas and an RF ion guide system with an RF carpet was constructed for a reference measurement of isotope shifts. It is important for performing planned collinear laser spectroscopy of RI beams from the SLOWRI facility at RIKEN, especially for medium-mass nuclei of refractory elements. They are difficult to produce via the ISOL method owing to the chemical properties of the elements. The laser-ablated ions of Ni, Zr, Ag, Ta, W, and Ba were transported by the ion guide and mass spectra consistent with the natural abundance were successfully observed corresponding to 105–107 ions per laser pulse.



中文翻译:

用于SLOWRI的RI激光光谱的离线离子源

构建了将氦气中的固体靶材激光烧蚀与带有RF地毯的RF离子引导系统相结合的离子源,用于同位素位移的参考测量。对于RIKEN SLOWRI工厂的RI光束进行计划共线激光光谱分析非常重要,特别是对于难熔元素的中等质量核。由于元素的化学性质,它们很难通过ISOL方法生产。Ni,Zr,Ag,Ta,W和Ba的激光烧蚀离子通过离子导向器传输,成功观察到与自然丰度相符的质谱,对应于每个激光脉冲10 5 –10 7离子。

更新日期:2020-11-17
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