Assessing the role of asymmetric charge transfer reactions in analytical glow discharges in argon

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00578792" target="_blank" >RIV/68378271:_____/23:00578792 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.sab.2023.106756" target="_blank" >https://doi.org/10.1016/j.sab.2023.106756</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sab.2023.106756" target="_blank" >10.1016/j.sab.2023.106756</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Assessing the role of asymmetric charge transfer reactions in analytical glow discharges in argon

Popis výsledku v původním jazyce

Charge transfer (CT) reactions between Ar+ ions and the sputtered analyte atoms occur at a much higher rate in analytical glow discharges (GD's) than in other similar plasmas, as follows from experimental Boltzmann plots of GD emission spectra and the spectra generated by an inductively coupled plasma. A simple model of a Grimm-type discharge suggests that these CT reactions occur at a higher rate in the cathode sheath than in the negative glow, due to a high collision rate between the sputtered analyte atoms and Ar+ ions accelerated in the cathode fall. This enhancement is, however, not sufficiently high to explain the anomalously high rates of those CT reactions, compared to other plasmas. Spatial inhomogeneity in the axial direction of Grimm-type GD plasma also means that Boltzmann plots of emission from this plasma cannot be interpreted in the conventional way. Further work is needed to explain the observed features of GD excitation, as reflected in the emission spectra.n

Název v anglickém jazyce

Assessing the role of asymmetric charge transfer reactions in analytical glow discharges in argon

Popis výsledku anglicky

Charge transfer (CT) reactions between Ar+ ions and the sputtered analyte atoms occur at a much higher rate in analytical glow discharges (GD's) than in other similar plasmas, as follows from experimental Boltzmann plots of GD emission spectra and the spectra generated by an inductively coupled plasma. A simple model of a Grimm-type discharge suggests that these CT reactions occur at a higher rate in the cathode sheath than in the negative glow, due to a high collision rate between the sputtered analyte atoms and Ar+ ions accelerated in the cathode fall. This enhancement is, however, not sufficiently high to explain the anomalously high rates of those CT reactions, compared to other plasmas. Spatial inhomogeneity in the axial direction of Grimm-type GD plasma also means that Boltzmann plots of emission from this plasma cannot be interpreted in the conventional way. Further work is needed to explain the observed features of GD excitation, as reflected in the emission spectra.n

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

<a href="/cs/project/EF16_019%2F0000760" target="_blank" >EF16_019/0000760: Fyzika pevných látek pro 21. století</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

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

207

Číslo periodika v rámci svazku

Sept.

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

106756

Kód UT WoS článku

001144409000001

EID výsledku v databázi Scopus

2-s2.0-85165541334