Proposed precision laser spectrometer for trapped, highly charged ions
Proposed precision laser spectrometer for trapped, highly charged ions
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提议用于捕获高电荷离子的精密激光光谱仪
DOI：
10.1063/1.2069742
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发表时间：
2005
影响因子：
1.6
通讯作者：
R. Thompson
中科院分区：
文献类型：
--
作者：
M. Vogel;D. Winters;D. Segal;R. Thompson
我们提出了一种精密激光光谱仪，用于捕获几乎静止的高电荷离子。它由一个圆柱形、端盖开放的彭宁阱组成，其中可以限制外部产生的高电荷离子束并通过激光光谱进行研究。密集离子云的限制、冷却和压缩的结合将允许测量高电荷离子的基态超精细分裂，其精度比之前的任何实验都要好三个数量级。对同一元素的不同电荷态和不同同位素的系统研究可以对束缚态量子电动力学进行高度灵敏的测试，并精确测定核特性。除稳定同位素外，还可以研究半衰期长于约 1 小时的放射性物质。
We propose a type of precision laser spectrometer for trapped, highly charged ions nearly at rest. It consists of a cylindrical, open-endcap Penning trap in which an externally produced bunch of highly charged ions can be confined and investigated by means of laser spectroscopy. The combination of confinement, cooling, and compression of a dense ion cloud will allow the ground-state hyperfine splitting in highly charged ions to be measured with an accuracy three orders of magnitude better than in any previous experiment. A systematic study of different charge states and different isotopes of the same element allows for highly sensitive tests of bound-state quantum electrodynamics and for a precision determination of nuclear properties. Apart from stable isotopes, radioactive species with half-lives longer than about 1 hour also can be investigated.