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DETERMINATION OF FINE STRUCTURE TRANSITION CROSS SECTIONS OF Rb(72D) ATOMS INDUCED BY COLLISIONS WITH MOLECULES OF H2 OR CO
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| SUN Xianping;LIU Zidong;LI Senlin |
| Wuhan Institute of Physics, Academia Sinica, Wuhan 430071 |
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| Cite this article: |
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SUN Xianping, LIU Zidong, LI Senlin 1990 Chin. Phys. Lett. 7 541-543 |
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Abstract The cross sections for fine-structure transition (FST) of Rb(72D) atoms induced by collision with molecules of H2 and CO have been experimentally determined by the method of selective stepwise excitation of Rb atoms and observation of the resulting fluorescence. The cross sections (in units of 10-14cm2) for Rb(72D) - H2 are σ*fs(72D5/2 → 72D3/2) = 0.16±0.03, σ*｀fs(72D3/2 →72D5/2) = 0.24 ±0.05, for Rb(72D)-CO: σ*fs = 0.10±0.06 and σ*｀fs = 0.15±0.09. The cross sections σ*tr for transfer out of the 72D doublet were also determined.
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| Keywords:
32.30.-r
32.50.+d
34.50.Fa
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Published: 01 December 1990
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| PACS: |
32.30.-r
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(Atomic spectra?)
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32.50.+d
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(Fluorescence, phosphorescence (including quenching))
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34.50.Fa
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(Electronic excitation and ionization of atoms (including beam-foil excitation and ionization))
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