Control of plasma properties in a short direct-current glow discharge with active boundaries

S. F. Adams, V. I. Demidov, E. A. Bogdanov, M. E. Koepke, A. A. Kudryavtsev, I. P. Kurlyandskaya

Результат исследований: Научные публикации в периодических изданияхстатья

5 Цитирования (Scopus)

Выдержка

To demonstrate controlling electron/metastable density ratio and electron temperature by applying negative voltages to the active (conducting) discharge wall in a low-pressure plasma with nonlocal electron energy distribution function, modeling has been performed in a short (lacking the positive-column region) direct-current glow discharge with a cold cathode. The applied negative voltage can modify the trapping of the low-energy part of the energetic electrons that are emitted from the cathode sheath and that arise from the atomic and molecular processes in the plasma within the device volume. These electrons are responsible for heating the slow, thermal electrons, while production of slow electrons (ions) and metastable atoms is mostly due to the energetic electrons with higher energies. Increasing electron temperature results in increasing decay rate of slow, thermal electrons (ions), while decay rate of metastable atoms and production rates of slow electrons (ions) and metastable atoms practically are unchanged. The result is in the variation of electron/metastable density ratio and electron temperature with the variation of the wall negative voltage.

Язык оригиналаанглийский
Номер статьи024501
ЖурналPhysics of Plasmas
Том23
Номер выпуска2
DOI
СостояниеОпубликовано - 1 фев 2016

Отпечаток

glow discharges
direct current
electrons
metastable atoms
electron energy
temperature ratio
decay rates
electric potential
cold cathodes
ions
sheaths
energy distribution
low pressure
cathodes
distribution functions
trapping
conduction
heating
energy

Предметные области Scopus

  • Физика и астрономия (все)

Цитировать

Adams, S. F. ; Demidov, V. I. ; Bogdanov, E. A. ; Koepke, M. E. ; Kudryavtsev, A. A. ; Kurlyandskaya, I. P. / Control of plasma properties in a short direct-current glow discharge with active boundaries. В: Physics of Plasmas. 2016 ; Том 23, № 2.
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abstract = "To demonstrate controlling electron/metastable density ratio and electron temperature by applying negative voltages to the active (conducting) discharge wall in a low-pressure plasma with nonlocal electron energy distribution function, modeling has been performed in a short (lacking the positive-column region) direct-current glow discharge with a cold cathode. The applied negative voltage can modify the trapping of the low-energy part of the energetic electrons that are emitted from the cathode sheath and that arise from the atomic and molecular processes in the plasma within the device volume. These electrons are responsible for heating the slow, thermal electrons, while production of slow electrons (ions) and metastable atoms is mostly due to the energetic electrons with higher energies. Increasing electron temperature results in increasing decay rate of slow, thermal electrons (ions), while decay rate of metastable atoms and production rates of slow electrons (ions) and metastable atoms practically are unchanged. The result is in the variation of electron/metastable density ratio and electron temperature with the variation of the wall negative voltage.",
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Control of plasma properties in a short direct-current glow discharge with active boundaries. / Adams, S. F.; Demidov, V. I.; Bogdanov, E. A.; Koepke, M. E.; Kudryavtsev, A. A.; Kurlyandskaya, I. P.

В: Physics of Plasmas, Том 23, № 2, 024501, 01.02.2016.

Результат исследований: Научные публикации в периодических изданияхстатья

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AU - Kurlyandskaya, I. P.

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