用于Ba$^{2+}$标记与重金属离子传感器开发的紧凑型双电荷离子源
A Compact Dication Source for Ba$^{2+}$ Tagging and Heavy Metal Ion Sensor Development
AI总结：
本文提出一种紧凑型可调谐金属离子源，通过顺序蒸发与电子碰撞电离产生皮安级可控离子束，成功实现Ba²⁺、Pb²⁺和Cd²⁺双电荷离子束，为无中微子双贝塔衰变钡标记和环境重金属离子传感提供了关键测试平台。
摘要：
我们提出了一种可调谐金属离子束，可在皮安范围内提供可控离子电流，用于干相离子传感器的测试。离子束通过顺序原子蒸发和单次或多次电子碰撞电离形成，随后加速进入传感区域。离子电荷态的可控性通过调节电极电位来实现，这些电位影响离子在电离区域中的滞留时间。已使用钡、铅和钴样品对该系统进行测试，并利用四极杆质量分析器对离子电流进行了识别和定量。在台式系统中实现干净的$\mathrm{Ba^{2+}}$离子束，是朝着开发和表征用于氙气中无中微子双贝塔衰变搜索的钡标记系统迈出的重要技术进展。该系统还为环境检测应用中的新型离子传感方法研究提供了测试平台，同时演示了用于此目的的Pb$^{2+}$和Cd$^{2+}$双电荷离子束。
英文摘要：
We present a tunable metal ion beam that delivers controllable ion currents in the picoamp range for testing of dry-phase ion sensors. Ion beams are formed by sequential atomic evaporation and single or multiple electron impact ionization, followed by acceleration into a sensing region. Controllability of the ionic charge state is achieved through tuning of electrode potentials that influence the retention time in the ionization region. Barium, lead, and cobalt samples have been used to test the system, with ion currents identified and quantified using a quadrupole mass analyzer. Realization of a clean $\mathrm{Ba^{2+}}$ ion beam within a bench-top system represents an important technical advance toward the development and characterization of barium tagging systems for neutrinoless double beta decay searches in xenon gas. This system also provides a testbed for investigation of novel ion sensing methodologies for environmental assay applications, with dication beams of Pb$^{2+}$ and Cd$^{2+}$ also demonstrated for this purpose.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
