Low-temperature collisions between neutral molecules in merged molecular beams.
Low-temperature collisions between neutral molecules in merged molecular beams.
复制标题
合并分子束中中性分子之间的低温碰撞。
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
A. Osterwalder
中科院分区：
文献类型：
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作者：
Benjamin Bertsche;Justin Jankunas;A. Osterwalder
我们开发了一项实验，用于研究低至 100 mK 温度下气相中的中性分子碰撞。这些低温是通过使用电引导和磁引导合并两个超音速膨胀并通过匹配光束速度来获得的。由于碰撞可用的能量或温度仅由反应伙伴的相对速度决定，因此可以在非常低的温度下研究化学过程，而无需在实验室参照系中制备慢速分子。本文描述了该方法并介绍了 Ne((3)P2)+NH3 潘宁电离的结果。
We have developed an experiment for the investigation of neutral molecular collisions in the gas phase at temperatures as low as 100 mK. These low temperatures are obtained by merging two supersonic expansions, using an electric and a magnetic guide, and by matching the velocities of the beams. Since the energy available for the collisions, or the temperature, is determined only by the relative velocity of the reaction partners this enables the study of chemical processes at very low temperatures without the need to prepare slow molecules in the laboratory frame of reference. This paper describes the method and presents results on the Ne((3)P2)+NH3 Penning ionization.