Glow discharge excitation and ionization of chromium, comparison with iron

0533390 - FZÚ 2021 RIV NL eng J - Journal Article
Weiss, Zdeněk
Glow discharge excitation and ionization of chromium, comparison with iron.
Spectrochimica Acta Part B: Atomic Spectroscopy. Roč. 166, Apr (2020), s. 1-11, č. článku 105792. ISSN 0584-8547. E-ISSN 1873-3565
R&D Projects: GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : chromium * excitation * ionization * glow discharge * self-absorption
OECD category: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impact factor: 3.752, year: 2020
Method of publishing: Limited access
https://doi.org/10.1016/j.sab.2020.105792

Cr I and Cr II emission spectra from a Grimm-type glow discharge (GD) in argon and neon were analyzed. Intensities of strong resonance Cr I lines were corrected for self-absorption and population functions (experimental Boltzmann plots) of the Cr I system were established. Cr II spectra in both discharges were described by transition rate (TR) diagrams, the contribution of cascade excitation was subtracted and the resulting net-TR diagrams of Cr II were analyzed. The findings were compared with the excitation of Fe I and Fe II systems at similar conditions. A well-known ‘hydrogen effect’, an enhancement of the Cr II line at 267.7165 nm in the presence of hydrogen in a GD plasma, was explained by charge transfer reaction between H+ ions and neutral chromium.

Permanent Link: http://hdl.handle.net/11104/0311776