Pulsed discharge in a large diameter tube with long-lasting pre-ionization
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F10974938%3A_____%2F25%3A25_86_01" target="_blank" >RIV/10974938:_____/25:25_86_01 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/25:00380690 RIV/68407700:21460/25:00380690
Result on the web
<a href="https://doi.org/10.1063/5.0238910" target="_blank" >https://doi.org/10.1063/5.0238910</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0238910" target="_blank" >10.1063/5.0238910</a>
Alternative languages
Result language
angličtina
Original language name
Pulsed discharge in a large diameter tube with long-lasting pre-ionization
Original language description
The evolution of a nitrogen plasma discharge in a tube with an inner diameter of 9.2 mm, excited by a particular pulse shape, is studied to suppress ablation from the inner wall. Excitation is realized by two current pulses. The first one is a long pre-ionization pulse, which guarantees the stability of the plasma column, and the second one is a higher current pulse, which causes the detachment of the discharge plasma from the wall. The evolution of plasma in the tube is modeled using the magneto-hydrodynamic code NPINCH in two approximations: (1) non-ablative and (2) strongly ablative walls. The time dependences of the optical radiation power in the direction along the discharge tube axis are measured and compared with simulated experimental results in non-ablative and ablative approaches. Time dependence of the measured optical radiation emission corresponds to the non-ablative model. In the selected large diameter capillary, the development of the pinching plasma is not significantly affected by the ablation of the material from the capillary walls.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PHYSICS OF PLASMAS
ISSN
1070-664X
e-ISSN
1089-7674
Volume of the periodical
32
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
023505
UT code for WoS article
001418756400002
EID of the result in the Scopus database
2-s2.0-85218340176