Original scientific paper

Temperature dependence of the cross section σ5S for the energy pooling process Na(3P) + Na(3P) → Na(5S) + Na(3S)

Vlasta Horvatić ; Institute of Physics, Bijenička 46, HR-10000 Zagreb, Croatia

Abstract

Applying the method of laser induced fluorescence, the cross section σ5S for the energy pooling process Na(3P) + Na(3P) → Na(5S) + Na(3S) has been determined at temperatures in the interval from 567 to 676 K. It has been found that σ5S decreases with increasing temperature, exhibiting σ5S ∝ T −1.3 dependence. The results show excellent agreement with the recent theoretical calculations. Also, the determined temperature dependence of the cross section σ5S fits very well into recently reported general σ vs. T scheme for the exothermic collisional excitation energy transfer cross sections, which includes various collision partners and various types of collisional excitation energy transfer processes with different energy defects.

Keywords

energy pooling process; Na(3P) + Na(3P) → Na(5S) + Na(3S); laser induced fluorescence; collisional excitation energy transfer; cross section

Hrčak ID:

301639

URI

https://hrcak.srce.hr/301639

Publication date:

1.7.2003.

Article data in other languages: croatian

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