Simulation of an Ultrahigh-Pressure Short-Arc Xenon Discharge Plasma
- 作者: Timofeev N.1, Sukhomlinov V.1, Zissis G.2, Mukharaeva I.1, Mikhailov D.1, Dupuis P.3
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隶属关系:
- St. Petersburg State University
- LAPLACE
- Kawantech
- 期: 卷 64, 编号 10 (2019)
- 页面: 1473-1479
- 栏目: Plasma
- URL: https://journals.rcsi.science/1063-7842/article/view/204239
- DOI: https://doi.org/10.1134/S1063784219100207
- ID: 204239
如何引用文章
详细
We have studied a high- (ultrahigh-) pressure short-arc discharge in xenon with thoriated tungsten cathodes. A system of equations formulated based on earlier experimental data indicating possible emission of cathode material (thorium) into the discharge gap has made it possible to determine the electric field strength, plasma temperature, and concentration of thorium atoms as well as thorium and xenon ions in the plasma. The problem has been solved for a model discharge between planar electrodes. The results indicate the key role of thorium atoms in the cathode region. Thorium atoms determine the ionization balance and other electrokinetic properties of plasma. Emission of thorium atoms reduces the plasma temperature at the cathode, which turns out to be noticeably lower than the plasma temperature near the anode; this is a new result that agrees with experimental data. Other electrokinetic characteristics of the plasma (in particular, charged particle concentration and electric field strength) are also in good agreement with the experiment.
作者简介
N. Timofeev
St. Petersburg State University
编辑信件的主要联系方式.
Email: niktimof@yandex.ru
俄罗斯联邦, PeterhofSt. Petersburg, 198504
V. Sukhomlinov
St. Petersburg State University
Email: niktimof@yandex.ru
俄罗斯联邦, PeterhofSt. Petersburg, 198504
G. Zissis
LAPLACE
Email: niktimof@yandex.ru
法国, 118 route de Narbonne, Toulouse, 31062
I. Mukharaeva
St. Petersburg State University
Email: niktimof@yandex.ru
俄罗斯联邦, PeterhofSt. Petersburg, 198504
D. Mikhailov
St. Petersburg State University
Email: niktimof@yandex.ru
俄罗斯联邦, PeterhofSt. Petersburg, 198504
P. Dupuis
Kawantech
Email: niktimof@yandex.ru
法国, Toulouse, 31400