Laser Spectroscopy of Radioactive Isotopes

质子和中子不是基本粒子，因此将它们聚集在原子核中的作用力还没有完全被理解。我们想要了解在整个核图上导致并经常相当迅速地变化的核的特征和性质。稳定的原子核只是目前已知的众多原子核中的一小部分，为了获得完整的图像，我们必须生产和研究那些寿命可能只有几毫秒或更短的原子核。这只可能在国际加速器实验室中实现，在那里，原子核是通过使用高能束的反应产生的。然后，使用电场和磁场(和激光)将放射性产品形成束流，对其进行过滤，并将其沿着真空管道引导到实验站。我们使用的设备取决于我们想要研究的原子核。激光光谱学被用来激发能级之间的电子，在超精细的分辨率水平上，能级因每个原子核的性质而分裂和移动不同。利用这种方法，我们将研究原子核的性质。

Protons and neutrons are not elementary particles, and so the forces which hold them together in a nucleus are not fully understood. We would like to understand the features and properties of nuclei which result, and vary, often quite rapidly, across the nuclear chart. Stable nuclei are only a small fraction of the many nuclei currently known to exist, and to get a full picture we must produce and study those which only live for perhaps milliseconds or less.This is only possible at international accelerator laboratories, where nuclei are produced in reactions using high energy beams. Electric and magnetic fields (and lasers) are then used to form the radioactive products into beams, filter them, and direct them along vacuum pipes to the experimental stations. The facility we use depends on which nuclei we wish to study.Laser spectroscopy is used to excite electrons between energy levels, and on the hyperfine level of resolution, the energy levels are split and shifted differently due to the properties of each nucleus. Using this method, the properties of the nucleus will be investigated.