UV spectra of ArH and ArD as emitted by a neutralized ion beam

Autor:	Ch. Wunderlich, H. Figger, B. Witzel, R. Bruckmeier
Rok vydání:	1994
Předmět:	Physics Range (particle radiation) Dipole Wavelength Ion beam Ab initio General Physics and Astronomy Ionic bonding Atomic physics Spectral line Beam (structure)
Zdroj:	Canadian Journal of Physics. 72:1236-1240
ISSN:	1208-6045 0008-4204
DOI:	10.1139/p94-159
Popis:	UV spectra of ArH and ArD can be observed after neutralizing an ionic beam of ArH+ and ArD+, respectively, in Cs vapor. The spectra are continuous and range in wavelength from 200 to 450 nm. Earlier lifetime measurements suggested that at least the E2Π and B2Π states contribute to the UV continua, which is supported by simulating the UV spectra starting from ab initio calculated potential curves and dipole transition moments supplied by Theodorakopoulos and Petsalakis. Using the original potentials, the short-wavelength part [Formula: see text] of the spectra could be fitted well, but for longer wavelengths a discrepancy between theoretical and experimental spectra remained. A change of the dissociative ground-state potential curve improved the fit decisively for both ArH and ArD.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0e7fbea09213461e4f3674bf0c7de3b2 https://doi.org/10.1139/p94-159 Zobrazit plný text záznamu