Merged-beams experiments in atomic and molecular physics
Merged-beams experiments in atomic and molecular physics
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DOI：
10.1088/0034-4885/62/7/202
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发表时间：
1999-07
影响因子：
18.1
通讯作者：
R. Phaneuf;C. Havener;G. Dunn;A. Müller
中科院分区：
文献类型：
--
作者：
R. Phaneuf;C. Havener;G. Dunn;A. Müller
合并光束技术对于某些类型的原子和分子过程的实验研究是强有力的，这些过程是其他方法无法轻易或准确地处理的。该技术的主要优点是能够在低相对能量下以高分辨率对碰撞相互作用进行定量研究，收集经过明显角散射的产物，以及研究涉及短寿命或化学反应性物质的过程。尽管离子源和粒子束技术不断取得进展，但合并束实验仍然是一个挑战，在世界范围内的原子和分子碰撞研究中所占的比例相对较小，但在不断增长。本文概述了合并光束方法的基本原理，综述了技术和进展，并重点介绍了三个活跃的项目，以突出该方法在解决原子和分子物理基本问题方面的优势。
The merged-beams technique is powerful for the experimental study of certain classes of atomic and molecular processes that cannot be as readily or accurately addressed by other methods. The principal advantages of the technique are the ability to make quantitative studies of collisional interactions with high resolution at low relative energies, to collect products that have undergone appreciable angular scattering, and to investigate processes involving short-lived or chemically-reactive species. Despite continuing advances in ion-source and particle-beam technologies, merged-beams experiments remain a challenge, constituting a relatively small but growing fraction of the worldwide effort in atomic and molecular collisions research. This review outlines the fundamental principles of the merged-beams method, reviews techniques and progress, and focuses on three active programs to highlight the advantages of the method for addressing fundamental questions in atomic and molecular physics.