Emission spectroscopic diagnostics of weakly ionized argon-diluted plasmas: glow discharge and inductively coupled plasma
Result description
An extensive study of Mn, Fe, Ti, Cr, Cu emission spectra from a Grimm-type glow discharge and an inductively coupled plasma (ICP), in argon, was performed, using the formalism of population functions (experimental Boltzmann plots) and transition rate diagrams. Emission characteristics of both spectral sources were compared. In both discharges the excitation of neutral metal atoms (Me I) is dominated by electron impact (EI) and in the excitation of singly charged ions (Me II) the charge transfer between Ar+ ions and Me I plays a significant role, especially in GDOES. Deviations from local thermodynamic equilibrium (LTE) were identified and classified. Experimental ‘excitation temperatures’ follow a pattern predicted by computer simulations with a collisional-radiative model: they are lower than the actual electron temperature, while this deviation is greater for the Me I system than Me II.n
Keywords
transition rate diagramstransfer excitation processescharge-transferprobabilitiesspectrometercalibrationhydrogenionizationglow dischargeinductively coupled plasmaemission spectroscopyBoltzmann plotstransition rate diagramslocal thermodynamic equilibriumCu,Mn,Ti,Fe,Cr
The result's identifiers
Result code in IS VaVaI
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Emission spectroscopic diagnostics of weakly ionized argon-diluted plasmas: glow discharge and inductively coupled plasma
Original language description
An extensive study of Mn, Fe, Ti, Cr, Cu emission spectra from a Grimm-type glow discharge and an inductively coupled plasma (ICP), in argon, was performed, using the formalism of population functions (experimental Boltzmann plots) and transition rate diagrams. Emission characteristics of both spectral sources were compared. In both discharges the excitation of neutral metal atoms (Me I) is dominated by electron impact (EI) and in the excitation of singly charged ions (Me II) the charge transfer between Ar+ ions and Me I plays a significant role, especially in GDOES. Deviations from local thermodynamic equilibrium (LTE) were identified and classified. Experimental ‘excitation temperatures’ follow a pattern predicted by computer simulations with a collisional-radiative model: they are lower than the actual electron temperature, while this deviation is greater for the Me I system than Me II.n
Czech name
—
Czech description
—
Classification
Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plasma Sources Science & Technology
ISSN
0963-0252
e-ISSN
—
Volume of the periodical
29
Issue of the periodical within the volume
10
Country of publishing house
GB - UNITED KINGDOM
Number of pages
19
Pages from-to
1-19
UT code for WoS article
000584296000001
EID of the result in the Scopus database
2-s2.0-85095974750
Basic information
Result type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
OECD FORD
Fluids and plasma physics (including surface physics)
Year of implementation
2020