Cold Reactive Collisions between laser-cooled ions and velocity-selected neutral molecules.
Cold Reactive Collisions between laser-cooled ions and velocity-selected neutral molecules.
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DOI：
10.1103/physrevlett.100.043203
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发表时间：
2008-01
影响因子：
8.6
通讯作者：
S. Willitsch;M. T. Bell;A. Gingell;S. R. Procter;T. Softley
中科院分区：
文献类型：
--
作者：
S. Willitsch;M. T. Bell;A. Gingell;S. R. Procter;T. Softley
本文报道了一种研究极低温下反应性离子-分子碰撞的新实验方法。利用线性Paul阱中的激光冷却离子源和四极波导速度选择器，研究了碰撞能量E[over]（科尔）/k（B）>或=1 K时Ca+与CH_3F的反应。该技术代表了一种通用的方法来研究离子和极性分子之间的反应碰撞在很宽的温度范围内下降到冷制度。
We report a new experimental method to study reactive ion-molecule collisions at very low temperatures. A source of laser-cooled ions in a linear Paul trap has been combined with a quadrupole-guide velocity selector to investigate the reaction of Ca+ with CH3F at collision energies E[over](coll)/k(B)> or =1 K with single-particle sensitivity. The technique represents a general approach to study reactive collisions between ions and polar molecules over a wide temperature range down to the cold regime.