电子回旋共振离子源产生的高电荷态离子X射线
Highly charged ion X-rays from Electron-Cyclotron Resonance Ion Sources
摘要：
来自电子回旋共振离子源的等离子体中所含的高电荷离子的辐射构成了非常明亮的X射线源。因为离子具有相对低的动能（$\approx 1$ eV），所以跃迁可以非常窄，仅包含小的多普勒展宽。本文描述了Z=16- 18的二电子和三电子离子的初步精确测量。我们展示了如何这些测量可以测试灵敏的多体相对论计算，或可以用作X射线标准的精确测量的X射线跃迁在异国情调的原子。
英文摘要：
Radiation from the highly-charged ions contained in the plasma of Electron-Cyclotron Resonance Ion Sources constitutes a very bright source of X-rays. Because the ions have a relatively low kinetic energy ($\approx 1$ eV) transitions can be very narrow, containing only small Doppler broadening. We describe preliminary accurate measurements of two and three-electron ions with Z=16--18. We show how these measurement can test sensitively many-body relativistic calculations or can be used as X-ray standards for precise measurements of X-ray transitions in exotic atoms.
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