期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 60, 期 8-9, 页码 2079-2086出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2003.10.040
关键词
optical emission spectroscopy; rotational temperature; vibrational temperature; laser-induced plasma
类别
Some emission spectra of diatomic molecules were calculated by a semi-automatic programme package in order to infer the rotational and vibrational temperatures in Boltzmann distribution by comparing them with the corresponding experimental ones. The calculation procedure was applied in the case of CN radical and C-2 molecule whose optical emission spectra were recorded during pulsed excimer laser ablation of a graphite target in low-pressure nitrogen environment. Computed similar or dissimilar values of rotational and vibrational temperatures let to verify the existence or not of local thermodynamic: equilibrium and to hypothesise the temporal range necessary to establish it in such experiments. (C) 2003 Elsevier B.V. All rights reserved.
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