Emission spectroscopic study of an analytical glow discharge with plane and hollow cathodes: titanium and iron in argon discharge

Kód výsledku v IS VaVaI

RIV/68378271:_____/21:00546536 - isvavai.cz

Výsledek na webu

http://hdl.handle.net/11104/0323202

DOI - Digital Object Identifier

10.1016/j.sab.2021.106208

Jazyk výsledku

angličtina

Název v původním jazyce

Emission spectroscopic study of an analytical glow discharge with plane and hollow cathodes: titanium and iron in argon discharge

Popis výsledku v původním jazyce

Ti and Fe emission spectra from plane and hollow cathode glow discharges in argon were measured by high resolution Fourier Transform spectrometer and analyzed. Analyte ionization in both discharge modes is dominated by charge transfer (CT) between Ar+ ions and neutral analyte atoms, while this process is more pronounced in a plane cathode than hollow cathode discharge. Radiative decay of the CT-excited levels is found to cause overpopulation of long-lived ground term and metastable analyte ions, relative to the equilibrium number densities that would be expected from the Saha-Boltzmann distribution. This overpopulation is found to spread into high-energy levels of neutral atoms by collisional 3-body recombination with electrons. The analysis of the spectra is based on experimental Boltzmann plots, transition rate diagrams and intensity ratios of emission lines measured in both discharge configurations. Uncertainty propagation in the data processing procedures is analyzed and described.

Název v anglickém jazyce

Emission spectroscopic study of an analytical glow discharge with plane and hollow cathodes: titanium and iron in argon discharge

Popis výsledku anglicky

Ti and Fe emission spectra from plane and hollow cathode glow discharges in argon were measured by high resolution Fourier Transform spectrometer and analyzed. Analyte ionization in both discharge modes is dominated by charge transfer (CT) between Ar+ ions and neutral analyte atoms, while this process is more pronounced in a plane cathode than hollow cathode discharge. Radiative decay of the CT-excited levels is found to cause overpopulation of long-lived ground term and metastable analyte ions, relative to the equilibrium number densities that would be expected from the Saha-Boltzmann distribution. This overpopulation is found to spread into high-energy levels of neutral atoms by collisional 3-body recombination with electrons. The analysis of the spectra is based on experimental Boltzmann plots, transition rate diagrams and intensity ratios of emission lines measured in both discharge configurations. Uncertainty propagation in the data processing procedures is analyzed and described.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

EF16_019/0000760: Fyzika pevných látek pro 21. století

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Spectrochimica Acta Part B: Atomic Spectroscopy

ISSN

0584-8547

e-ISSN

1873-3565

Svazek periodika

180

Číslo periodika v rámci svazku

Jun.

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

106208

Kód UT WoS článku

000655565400012

EID výsledku v databázi Scopus

2-s2.0-85107158366