Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции
Modeling of High Pressure Short-arc Xenon Discharge with a Thoriated Cathode. / Timofeev, Nikolai A. ; Sukhomlinov, Vladimir S. ; Zissis, Georges ; Mukharaeva, Indzhira Yu. ; Mikhaylov, Dmitrii V. ; Mustafaev, Alexander S. ; Dupuis, Pascal; Solikhov, Davlat Quvatovich ; Borodina, Valeria S. .
в: IEEE Transactions on Plasma Science, Том 49, № 8, 2021, стр. 2387-2396.Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции
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TY - JOUR
T1 - Modeling of High Pressure Short-arc Xenon Discharge with a Thoriated Cathode
AU - Timofeev, Nikolai A.
AU - Sukhomlinov, Vladimir S.
AU - Zissis, Georges
AU - Mukharaeva, Indzhira Yu.
AU - Mikhaylov, Dmitrii V.
AU - Mustafaev, Alexander S.
AU - Dupuis, Pascal
AU - Solikhov, Davlat Quvatovich
AU - Borodina, Valeria S.
N1 - Conference code: 2
PY - 2021
Y1 - 2021
N2 - A short-arc xenon discharge of high (super-high) pressure, which is widely used as a light source, has been studied taking into account the evaporation of cathode material (thorium) into the discharge volume. The article is a continuation of the experimental study, results of which were published earlier (IEEE Transactions on Plasma Science, July 2019, Vol. 47, Issue 7, pp. 3266–3270). A model of the discharge of real geometry is developed, the ellipsoidal coordinates as the most appropriate being used. The strong influence of thorium on the plasma characteristics is obtained. The most noticeable effect is got for the plasma temperature, which is sufficiently lower near the cathode than in a pure xenon discharge, the electric field strength having higher values and penetrating deeper into the discharge volume, and the density of xenon ions, which is close to zero near the cathode that is completely inexplicable without thorium evaporation into the discharge. The results and the approach can be applied to describe other arc discharge plasmas with electrodes doped with some weakly ionized additives.
AB - A short-arc xenon discharge of high (super-high) pressure, which is widely used as a light source, has been studied taking into account the evaporation of cathode material (thorium) into the discharge volume. The article is a continuation of the experimental study, results of which were published earlier (IEEE Transactions on Plasma Science, July 2019, Vol. 47, Issue 7, pp. 3266–3270). A model of the discharge of real geometry is developed, the ellipsoidal coordinates as the most appropriate being used. The strong influence of thorium on the plasma characteristics is obtained. The most noticeable effect is got for the plasma temperature, which is sufficiently lower near the cathode than in a pure xenon discharge, the electric field strength having higher values and penetrating deeper into the discharge volume, and the density of xenon ions, which is close to zero near the cathode that is completely inexplicable without thorium evaporation into the discharge. The results and the approach can be applied to describe other arc discharge plasmas with electrodes doped with some weakly ionized additives.
KW - Arc discharges
KW - high xenon pressure
KW - light sources
KW - modeling
KW - plasma applications
KW - thorium evaporation
KW - tungsten-thorium cathode
UR - https://ieeexplore.ieee.org/document/9487019
UR - https://elibrary.ru/item.asp?id=46901865
M3 - Conference article
VL - 49
SP - 2387
EP - 2396
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
SN - 0093-3813
IS - 8
Y2 - 28 December 2021 through 28 December 2021
ER -
ID: 97467687