Energy distributions of He+ and He2+ ions formed in ultracold He(23S1)+He(23P2) collisions

被引：0
|
作者：
Pieksma, M. [1 ]
Čiážek, M. [1 ]
Thomsen, J.W. [1 ]
Van Der Straten, P. [1 ]
Niehaus, A. [1 ]
机构：
[1] Nederlands Meetinstituut, Dept. of Temperature and Radiation, Ionizing Radiation Section, P.O. Box 80000, 3508 TA Utrecht, Netherlands
来源：
Physical Review A - Atomic, Molecular, and Optical Physics | 2002年 / 66卷 / 02期
关键词：
Electron energy levels - Ions - Magnetooptical effects - Mathematical models - Molecular dynamics - Temperature;
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摘要：
Oscillatory features were observed in the He+ ion-energy distribution of ultracold S+P metastable helium collisions. Energy distributions were also taken into account. By using very small electrostatic extraction fields, a meV energy resolution was achieved for these molecular ions. The measurement confirmed the maximum theoretical recoil energy of 1.1 meV. Finally, it was shown that the combination of a MOT and a TOF technique provides a powerful experimental tool.
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页码：1 / 022703
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