We present a new collinear laser spectroscopy setup that has been designed to overcome systematic uncertainty limits arising from high-voltage and frequency measurements, beam superposition, and collisions with residual gas that are present in other installations utilizing this technique. The applied methods and experimental realizations are described, including an active stabilization of the ion-source potential, new types of ion sources that have not been used for collinear laser spectroscopy so far, dedicated installations for pump-and-probe measurements, and a versatile laser system referenced to a frequency comb. The advanced setup enables us to routinely determine transition frequencies, which was so far demonstrated only for a few cases and with lower accuracy at other facilities. It has also been designed to perform accurate high-voltage measurements for metrological applications. Demonstration and performance measurements were carried out with Ca+ and In+ ions.

中文翻译：

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一种新的激光光谱和应用科学共线仪 (COALA)

我们提出了一种新的共线激光光谱设置，该设置旨在克服由高压和频率测量、光束叠加以及与使用该技术的其他装置中存在的残余气体碰撞引起的系统不确定性限制。描述了所应用的方法和实验实现，包括离子源电位的主动稳定、迄今为止尚未用于共线激光光谱的新型离子源、用于泵浦和探针测量的专用装置以及多功能参考频率梳的激光系统。先进的设置使我们能够定期确定跃迁频率，目前仅在少数情况下证明了这一点，并且在其他设施中精度较低。它还旨在为计量应用执行精确的高压测量。使用 Ca+ 和 In+ 离子进行演示和性能测量。