Atomic physics experiments with trapped and cooled highly charged ions
Atomic physics experiments with trapped and cooled highly charged ions
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使用捕获和冷却的高电荷离子进行原子物理实验
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
D. Winters
中科院分区：
文献类型：
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作者：
H. Kluge;W. Quint;D. Winters
囚禁和冷却技术在原子物理的许多基础实验中已经变得非常重要。当应用于限制在Penning陷阱中的高电荷离子时，这些程序对于测试由重的高电荷离子(如铀U91+)产生的极端电磁场中的量子电动力学非常有效。此外，在这些简单的系统中，基本常数或核基态性质可以高精度地确定。最后，通过研究单个被俘获的放射性离子，可以通过观察母体信号的消失和子体同位素信号的出现来详细地研究它的核衰变。HITRAP设施将使在极低能量下对高电荷态离子进行这样的实验成为可能，该设施目前正在GSI建造。此外，还将简要介绍未来的反质子和离子研究设施(FIRE)，预计该设施将于2014年投入使用。
Trapping and cooling techniques have become very important for many fundamental experiments in atomic physics. When applied to highly charged ions confined in Penning traps, these procedures are very effective for testing quantum electrodynamics in extreme electromagnetic fields produced by heavy highly charged ions such as uranium U91+. In addition, fundamental constants or nuclear ground state properties can be determined with high accuracy in these simple systems. Finally, by studying a single trapped radioactive ion, its nuclear decay can be studied in detail by observing the disappearance of the signal of the mother and the appearance of that of the daughter isotope. Such experiments on highly charged ions at extremely low energy will become possible by the HITRAP facility which is currently being built up at GSI. Also the future Facility for Antiproton and Ion Research (FAIR) will be briefly described which is expected to be operational by 2014.