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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Trapping of relatively short-lived radioactive ~(146)Eu in a Paul trap
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Trapping of relatively short-lived radioactive ~(146)Eu in a Paul trap

机译：在Paul阱中捕获相对短寿命的放射性〜（146）Eu

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摘要

A new technique has been developed wherein one of the relatively short lived isotopes of europium (~(146)Eu, Half life = 4.61 days) has been generated by decay of parent ~(146)Gd atoms and the ions are confined in a Paul trap for spectroscopic studies. Studies of the mass dependent ion oscillation frequencies show that the ions trapped have a mass number 146 amu and this was confirmed by similar measurements carried out on trapped barium and potassium ions. From calculations of thermal ionization probabilities based on the Langmuir–Saha equation and the number of trapped ions estimated from ion response signal, the approximate number of the different isobars (of mass number 146) trapped, has been evaluated. We also present simulations of the evolution of laser-induced fluorescence photons of the trapped ~(146)Eu ions, wherein a pulsed laser is used to excite the resonance ~9S_4 - ~9P_5 transition, which rapidly decays to the metastable ~9D_(4-6) states emitting fluorescence photons.
机译：已经开发出一种新技术，其中by的〜（146）Gd原子的衰变产生了the的寿命相对较短的同位素之一（〜（146）Eu，半衰期= 4.61天），并且离子被限制在一个用于光谱研究的阱。对质量相关的离子振荡频率的研究表明，被捕获的离子的质量数为146 amu，这一点已通过对捕获的钡和钾离子进行的类似测量得到了证实。根据基于Langmuir-Saha方程的热电离几率计算和根据离子响应信号估算的捕获离子数，已评估了捕获的不同等压线（质量数146）的近似数。我们还提出了捕获的〜（146）E离子的激光诱导荧光光子演化的模拟，其中使用脉冲激光激发〜9S_4〜〜9P_5共振跃迁，该跃迁迅速衰减至亚稳态〜9D_（4 -6）发出荧光光子的状态。

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