2022
Measurements of the electric field: four methods match
MRKVIČKOVÁ, Martina, Lucia KUTHANOVÁ, Petr BÍLEK, Adam OBRUSNÍK, Zdeněk NAVRÁTIL et. al.Základní údaje
Originální název
Measurements of the electric field: four methods match
Autoři
MRKVIČKOVÁ, Martina (203 Česká republika, domácí), Lucia KUTHANOVÁ (703 Slovensko, domácí), Petr BÍLEK (203 Česká republika), Adam OBRUSNÍK (203 Česká republika, domácí), Zdeněk NAVRÁTIL (203 Česká republika, domácí), Pavel DVOŘÁK (203 Česká republika, domácí), Igor ADAMOVICH (840 Spojené státy), Milan ŠIMEK (203 Česká republika) a Tomáš HODER (203 Česká republika, domácí)
Vydání
9th Plasma Science and Entrepreneurship Workshop, 2022
Další údaje
Jazyk
angličtina
Typ výsledku
Konferenční abstrakt
Obor
10305 Fluids and plasma physics
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
plasma; electric field; EFISH; Townsend discharge
Příznaky
Mezinárodní význam
Změněno: 29. 7. 2024 09:48, Mgr. Martina Mrkvičková, Ph.D.
Anotace
V originále
The electric field is one of the essential plasma parameters which determines the discharge dynamics and initiates chemistry in the plasma. Different experimental methods have been developed and applied for electric field determination. Yet, with such a variety of discharge types, gases and other conditions, it is usually only one method matching the requirements of the studied discharge system. The aim of our work was to investigate several experimental methods for the determination of the electric field development and compare their results obtained under the same discharge conditions. The object suitable for all methods was a weak microseconds-lasting atmospheric pressure Townsend discharge (APTD) operated in the dielectric barrier configuration in pure nitrogen. We chose four methods: laser-aided EFISH (electric field induced second harmonics generation), optical emission-based FNS/SPS (first negative/second positive systems of molecular, nitrogen) intensity ratio, equivalent electrical circuit approach, the determination from the first Townsend coefficient ( E/N ) acquired from the spatial rise of the optical emission intensity. The resulting electric field values are in a reasonable range, yet show mutual discrepancies. Limitations, advantages and sources of systematical errors of all methods are discussed in detail for investigated discharge. Special attention is paid to the EFISH method, whose measurements are supported by the re-computation of the effective interaction path of the laser using an electrostatic model.
Návaznosti
| GA15-04023S, projekt VaV |
| ||
| GA21-16391S, projekt VaV |
| ||
| LM2018097, projekt VaV |
|