J 2013

Optical diagnostics of a surface-wave-sustained neon plasma by collisional-radiative modelling and a self-absorption method

NAVRÁTIL, Zdeněk, Lenka DOSOUDILOVÁ, Jaroslav HNILICA and Todor BOGDANOV

Basic information

Original name

Optical diagnostics of a surface-wave-sustained neon plasma by collisional-radiative modelling and a self-absorption method

Authors

NAVRÁTIL, Zdeněk (203 Czech Republic, guarantor, belonging to the institution), Lenka DOSOUDILOVÁ (203 Czech Republic, belonging to the institution), Jaroslav HNILICA (203 Czech Republic, belonging to the institution) and Todor BOGDANOV (100 Bulgaria)

Edition

Journal of physics D: Applied physics, Bristol, England, IOP Publishing Ltd. 2013, 0022-3727

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10305 Fluids and plasma physics

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.521

RIV identification code

RIV/00216224:14310/13:00066305

Organization unit

Faculty of Science

DOI

UT WoS

000321333600008

Keywords (in Czech)

optická emisní spektroskopie; výboj s povrchovou vlnou; neon; srážkově-radiační modelování; samoabsorpce

Keywords in English

optical emission spectroscopy; surface-wave plasma; neon; collisional-radiative modelling; self-absorption

Tags

Tags

International impact, Reviewed
Změněno: 13/3/2018 11:06, doc. Mgr. Zdeněk Navrátil, Ph.D.

Abstract

ORIG CZ

V originále

A surface-wave-sustained microwave discharge in a coaxial tube configuration in neon at low pressure (300-700 Pa) was studied by optical emission spectroscopy. Spectra of the discharge were analysed by a self-absorption method and a collisional-radiative model. The self-absorption method was used to determine the densities of neon metastable states. The collisional-radiative model, using these densities, was applied to determine the axially resolved electron temperature and the reduced electric field strength in the discharge from the optical spectra. Two types of electron distribution functions were used in the calculations-a Maxwellian distribution function and a solution of electron Boltzmann kinetic equation. The spatially averaged neon metastable densities were in the range (0.12-0.53) x 10(16) m(-3) and (3.4-4.1) x 10(16) m(-3) for 1s(3) and 1s(5) states, respectively. The axial profile of the electron temperature was found to be approximately constant around 1.3-1.6 eV depending on the pressure. The reduced electric field strength decreased along the plasma column in the range 16.5-6.0 Td depending on the pressure. A large influence of gas cooling along the plasma column on the determined reduced electric field strengths was observed.

In Czech

Mikrovlnný výboj s povrchovou vlnou v koaxiálním uspořádání elektrod byl studován optickou emisní spektroskopií s využitím metody srážkově-radiačního modelování a metody samoabsorpce.

Links

CZ.1.05/2.1.00/03.0086, interní kód MU
Name: CEPLANT - Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy
Investor: Ministry of Education, Youth and Sports of the CR, 2.1 Regional R&D Centres
GAP205/10/1374, research and development project
Name: Syntéza uhlíkových nanotrubek plazmochemickou metodou a studium jejich funkčních vlastností
Investor: Czech Science Foundation
GD104/09/H080, research and development project
Name: Plazmochemické procesy a jejich technologické aplikace
Investor: Czech Science Foundation