2018
DOI: 10.21883/jtf.2018.06.46032.2465
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Стримеры При Субнаносекундном Пробое Аргона И Азота В Неоднородном Электрическом Поле При Обеих Полярностях

Abstract: С помощью ICCD-камеры исследовано свечение плазмы на этапе формирования стримера (волны ионизации) в промежутке " острие-плоскость" длиной 3 mm, заполненном аргоном либо азотом при давлении 12.5−400 kPa. На промежуток подавались наносекундные импульсы напряжения отрицательной и положительной полярности. Получены изображения стримера в различные моменты времени при его распространении по промежутку. Посредством стрик-камеры, оснащенной монохроматором, зарегистрирован временной ход интенсивности излучения молеку… Show more

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“…As follows from [26], copper and indium atoms are less bound in the chalcopyrite molecule; therefore, the linear part of the plasma emission spectrum is mainly due to individual spectral lines of atoms and singly charged ions of copper and indium, as for gas-discharge plasma based on atmospheric pressure air [17]. The emission spectrum of air molecules consisted mainly of intense bands of the second positive system of the nitrogen molecule in the spectral range of 280 -390 nm, which is typical for the diffuse stage of overstressed nanosecond discharge [27], as well as individual spectral lines N 1, N11 characteristic for the emission spectra of a spark discharge in air at atmospheric pressure [28]. Proceeding from this, in the plasma emission spectra of vapor-gas mixtures based on aluminum, the products of the dissociation of the chalcopyrite molecule, air and the products of the dissociation of its molecules, the emission spectrum of the discharge plasma in the wavelength range of 200 -240 nm consisted of a group of closely spaced spectral lines of the copper atom, a singly charged copper ion, as well as the lines of the Fig.…”
Section: Optical Characteristicsmentioning
confidence: 99%
“…As follows from [26], copper and indium atoms are less bound in the chalcopyrite molecule; therefore, the linear part of the plasma emission spectrum is mainly due to individual spectral lines of atoms and singly charged ions of copper and indium, as for gas-discharge plasma based on atmospheric pressure air [17]. The emission spectrum of air molecules consisted mainly of intense bands of the second positive system of the nitrogen molecule in the spectral range of 280 -390 nm, which is typical for the diffuse stage of overstressed nanosecond discharge [27], as well as individual spectral lines N 1, N11 characteristic for the emission spectra of a spark discharge in air at atmospheric pressure [28]. Proceeding from this, in the plasma emission spectra of vapor-gas mixtures based on aluminum, the products of the dissociation of the chalcopyrite molecule, air and the products of the dissociation of its molecules, the emission spectrum of the discharge plasma in the wavelength range of 200 -240 nm consisted of a group of closely spaced spectral lines of the copper atom, a singly charged copper ion, as well as the lines of the Fig.…”
Section: Optical Characteristicsmentioning
confidence: 99%