Radiative Decay of Autoionizing np 2-States During Dielectronic Recombination of Zn+ and Cd+ Ions

Gomonaǐ, A. N.

doi:10.1007/s10812-015-0057-4

Cited by 15 publications

(8 citation statements)

References 25 publications

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“…Copper vapor was injected into plasma due to the electrode erosion. As was done in work [41], where the plasma in atmospheric-pressure air with small admixtures of copper vapor was investigated and where the partial pressure of copper vapor was estimated to equal 0.1%, the partial pressure of copper vapor for our estimates was chosen to equal 100 Pa. Under the given experimental conditions, the maximum value of the / parameter reached a value of about 530 V/(cm torr), which is less than the critical / value for nitrogen according to the local criterion of electron escape, 590 V/(cm torr) [30].…”

Section: Plasma Parametersmentioning

confidence: 70%

“…The corresponding effective cross-sections for copper and iron ions are not known at present. The corresponding effective cross-sections for zinc ions have been studied, and they were found to be quite large, namely, 10 −16 cm 2 [41]. Therefore, it is quite probable that excited atoms and ions of transition metals are formed in the plasma of a nanosecond overvoltage discharge by exciting the singly charged ions of those metals in the ground-energy state by electrons and owing to the recombination process of the doubly charged ions of transition metals by discharge electrons.…”

Section: Discharge Parametersmentioning

confidence: 99%

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Parameters of Nanosecond Overvoltage Discharge Plasma in a Narrow Air Gap between the Electrodes Containing Electrode Material Vapor

Шуаібов¹,

Minya²,

Чучман³

et al. 2018

Ukr. J. Phys.

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Parameters of the nanosecond overvoltage discharge plasma in an air gap of (1÷5) × 10 −3 m between the electrodes, which contains the vapor of an electrode material (Zn, Cu, Fe) injected into plasma due to the ectonic mechanism, have been studied. The dependences of those parameters on the ratio / between the electric field strength and the particle concentration in the discharge are calculated for the "air-copper vapor" system, by using the numerical simulation method. K e y w o r d s: nanosecond discharge, air, radiation emission by atoms and ions, plasma parameters, zinc, copper, iron.

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Section: Plasma Parametersmentioning

confidence: 70%

Section: Discharge Parametersmentioning

confidence: 99%

Parameters of Nanosecond Overvoltage Discharge Plasma in a Narrow Air Gap between the Electrodes Containing Electrode Material Vapor

Шуаібов¹,

Minya²,

Чучман³

et al. 2018

Ukr. J. Phys.

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“…After this, electron-ion recombination processes begin to manifest themselves in the afterglow of the discharge. So, for zinc ions, the corresponding effective cross sections for the excitation of zinc ions by electrons in the ground energy state reach -10 -16 cm 2 [32].…”

Section: Tablementioning

confidence: 98%

Investigation of the conditions of synthesis of metal and chalcopyrite films from the degradation products of electrodes of an overstressed nanosecond discharge in argon and air

Шуаибов

Minya

Grytsak

et al. 2020

Phys. Chem. Solid St.

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The characteristics of an overstressed bipolar discharge with a duration of 100-150 ns in argon and air, which was ignited between copper electrodes in argon, and also between an aluminum electrode and a chalcopyrite (CuInSe2) electrode in air, are presented. In the process of microexplosions of inhomogeneities on the working surfaces of the electrodes in a strong electric field, the vapor of copper, aluminum, and vapor of ternary chalcopyrite are introduced into the interelectrode gap. This creates the prerequisites for the synthesis of thin copper films and the synthesis of films based on quaternary chalcopyrite - CuAlInSe2, which can be deposited on a quartz plate installed near the center of the discharge gap. The optical characteristics of the plasma, as well as voltage pulses across the discharge gap of d = 1–2 mm, current pulses, and pulsed energy contributions to the discharge, have been investigated using emission spectroscopy with a high time resolution. The plasma emission spectra were thoroughly studied, which made it possible to establish the main decay products of the chalcopyrite molecule and the energy states of atoms and singly charged ions of aluminum, copper, and indium, which are formed in the discharge.

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“…Спектр випромінювання розряду в аргоні при р = 1 Атм і між електродній відстані d=5 мм. Найбільш імовірними механізмами утворення збуджених атомів та іонів цинку в умовах даного експерименту може бути збудження іонів цинку електронами з основного стану і в процесах електрон-іонної рекомбінації [10]. В сумішах на основі гелію іонізація цинку відбувається ефективно в процесах пеннінг-іонізації та ступінчатої іонізації атома цинку електронами.…”

Section: електричні і оптичні характеристикиunclassified

Characteristics overvoltage nanosecond discharges on mixtures of helium and argon with admixtures of water vapor

Данило¹,

Миня²,

Шуаібов³

et al. 2017

Sci.Herald.Uzh.Univ.Ser.Phys

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Наведено електричні і оптичні характеристики сильнострумового наносекундного розряду в сумішах Гелію і Аргону з малими домішками пари води. Тиск інертних газів знаходився в діапазоні (7-220) кПа, парціальний тиск пари води складав (50-133) Па. Віддаль між електродами з Цинку: d = 1 та 5 мм. Показано, що при сильному перенапруженні розрядного проміжку при d = 1 мм, коли величина параметра Е/p в розрядному проміжку досягає 200-300 В/(см Торр) плазма розряду є джерелом УФ-випромінювання в спектральному діапазоні 200-215 нм на спектральних переходах атомів та іонів Цинку. Енергетичний внесок в розряд та інтенсивність УФ випромінювання Цинку збільшувались при зростанні тисків Не і Ar. Додавання пари води в розряд слабо впливало на інтенсивність УФ випромінювання Цинку і дозволяло одержати в спектрах випромінювання інтенсивні спектральні лінії атома Водню, які можуть використовуватись для оцінок параметрів плазми. Ключові слова: сильнострумовий наносекундний розряд, Цинк, Гелій, Аргон, пари води, спектр випромінювання, ультрафіолет.

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Radiative Decay of Autoionizing np 2-States During Dielectronic Recombination of Zn+ and Cd+ Ions

Cited by 15 publications

References 25 publications

Parameters of Nanosecond Overvoltage Discharge Plasma in a Narrow Air Gap between the Electrodes Containing Electrode Material Vapor

Parameters of Nanosecond Overvoltage Discharge Plasma in a Narrow Air Gap between the Electrodes Containing Electrode Material Vapor

Investigation of the conditions of synthesis of metal and chalcopyrite films from the degradation products of electrodes of an overstressed nanosecond discharge in argon and air

Characteristics overvoltage nanosecond discharges on mixtures of helium and argon with admixtures of water vapor

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