Evolution of filament-like compact structures in small 3 kJ dense plasma focus discharges

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00376414" target="_blank" >RIV/68407700:21230/24:00376414 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0187304" target="_blank" >https://doi.org/10.1063/5.0187304</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0187304" target="_blank" >10.1063/5.0187304</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evolution of filament-like compact structures in small 3 kJ dense plasma focus discharges

Popis výsledku v původním jazyce

This paper presents the filamentary structure of the pinched column in a smaller plasma focus device filled with deuterium. The deflections were observed using schlieren and differential interferometry techniques. The observed filaments have a transverse diameter of 40-200 mu m, which could be interpreted based on the electric current hypothesis as local concentrations of electric current. The evolution of filaments was compared with global structures recorded by extra ultraviolet frames. These results provide a basis for considering the possibility of a filamentary composition of the poloidal current in compact structures. The model of filaments with a helical shape of electrical current may be able to explain the central narrow and dense cord in the axis of the column, the different lifetimes of the structures, and the submillimeter sources of fast electrons and ions.

Název v anglickém jazyce

Evolution of filament-like compact structures in small 3 kJ dense plasma focus discharges

Popis výsledku anglicky

This paper presents the filamentary structure of the pinched column in a smaller plasma focus device filled with deuterium. The deflections were observed using schlieren and differential interferometry techniques. The observed filaments have a transverse diameter of 40-200 mu m, which could be interpreted based on the electric current hypothesis as local concentrations of electric current. The evolution of filaments was compared with global structures recorded by extra ultraviolet frames. These results provide a basis for considering the possibility of a filamentary composition of the poloidal current in compact structures. The model of filaments with a helical shape of electrical current may be able to explain the central narrow and dense cord in the axis of the column, the different lifetimes of the structures, and the submillimeter sources of fast electrons and ions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

PHYSICS OF PLASMAS

ISSN

1070-664X

e-ISSN

1089-7674

Svazek periodika

31

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

001287926600010

EID výsledku v databázi Scopus

2-s2.0-85201054459