Cathode configuration influence on low-inductance vacuum spark plasma dynamics

Autor:	S A Sarantsev, A.S. Savjolov, Ya.M. Dvoeglazov, I.F. Raevsky, E I Dodulad
Rok vydání:	2016
Předmět:	History Work (thermodynamics) Chemistry Plasma Shadowgraphy Radiation Laser Cathode Computer Science Applications Education law.invention Inductance law Electrode Atomic physics
Zdroj:	Journal of Physics: Conference Series. 747:012016
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/747/1/012016
Popis:	The results of studies of cathode configuration influence on high current low- inductance vacuum spark (HLVS) plasma dynamics are presented in this work. The research was carried out on "PION" installation using shadowgraphy method. Molecular nitrogen laser (λ = 337 nm) was used as a radiation source. It was determined that the HLVS behavior changes with the increase of number of discharges. In a fresh electrode system (less than 200 discharges) the dependence of constriction position on the discharge trigger position is observed during HLVS development. Also, high gradients of plasma density and secondary constrictions are observed. In a previously exploited electrode system (more than 300 discharges) HLVS behavior changes: plasma density gradients become less expressed, secondary constrictions disappear. In electrode systems with highly developed cathode surface plasma density gradient distribution pattern only slightly changes from discharge to discharge, e.g. the discharge becomes more stable.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5b68aa1342f89060153bd8cf29cf8dc8 https://doi.org/10.1088/1742-6596/747/1/012016 Zobrazit plný text záznamu