Relevant bibliographies by topics / High-current nanosecond discharge

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Academic literature on the topic 'High-current nanosecond discharge'

Author: Grafiati
Published: 4 June 2025
Last updated: 23 June 2025

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Journal articles on the topic "High-current nanosecond discharge"

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Kuzenov, Victor V., Sergei V. Ryzhkov, and Aleksey Yu Varaksin. "Computational and Experimental Modeling in Magnetoplasma Aerodynamics and High-Speed Gas and Plasma Flows (A Review)." Aerospace 10, no. 8 (2023): 662. http://dx.doi.org/10.3390/aerospace10080662.

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This paper provides an overview of modern research on magnetoplasma methods of influencing gas-dynamic and plasma flows. The main physical mechanisms that control the interaction of plasma discharges with gaseous moving media are indicated. The ways of organizing pulsed energy input, characteristic of plasma aerodynamics, are briefly described: linearly stabilized discharge, magnetoplasma compressor, capillary discharge, laser-microwave action, electron beam action, nanosecond surface barrier discharges, pulsed spark discharges, and nanosecond optical discharges. A description of the physical mechanism of heating the gas-plasma flow at high values of electric fields, which are realized in high-current and nanosecond (ultrafast heating) electric discharges, is performed. Methods for magnetoplasma control of the configuration and gas-dynamic characteristics of shock waves arising in front of promising and advanced aircraft (AA) are described. Approaches to the control of quasi-stationary separated flows, laminar–turbulent transitions, and static and dynamic separation of the boundary layer (for large PA angles of attack) are presented.
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Li, Handong, Yutai Li, Xinxin Wang, Xiaobing Zou, Peng Wang, and Haiyun Luo. "Investigation of the microsecond-pulse acoustic wave generated by a single nanosecond-pulse discharge." Physics of Plasmas 29, no. 5 (2022): 053508. http://dx.doi.org/10.1063/5.0085748.

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A single nanosecond-pulse discharge can produce a high-intensity pulsed acoustic wave. The pulse width of the acoustic wave is much wider than that of the current, more than 20 μs at 30 cm from the source, which is the basis of synthesizing low-frequency sound by repetitively nanosecond-pulse discharges. The investigations of electroacoustic characteristics and the sound formation process of the single nanosecond-pulse discharge are vital to advance this technology. In this paper, an experimental platform for the single nanosecond-pulse discharge was built, and time-domain waveforms of the voltage, the current, and the sound pressure were measured. The effects of electrode shape, current limiting resistors, and current pulse width on the acoustic wave were discussed. To analyze the formation process of the acoustic wave, the gas densities near the electrodes at different moments after the discharge were diagnosed by laser Schlieren photography. The result shows that the formation of the acoustic wave is much slower than the discharge. A two-stage model was developed to qualitatively describe the formation process of the acoustic wave, and numerical calculations were carried out using thermodynamic and hydrodynamic equations. At the end of the discharge, a huge pressure difference is formed inside and outside the gas channel due to the Joule heating, which can be considered as a shock wave. During the outward propagation, the wave tail is elongated by the difference in sound velocity at each point, and the thickness of the shock wave increases due to the dissipation. This eventually leads to the half-duration of more than 20 μs.
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Znamenskaya, I. A., D. A. Koroteev, and N. A. Popov. "A Nanosecond High-Current Discharge in a Supersonic Gas Flow." High Temperature 43, no. 6 (2005): 817–24. http://dx.doi.org/10.1007/s10740-005-0129-x.

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Шуаибов, А.К., А.Й. Миня, А.Л. Енеди, И.В. Шевера, З.Т. Гомоки та В.В. Данило. "Характеристики наносекундного разряда с жидким неметаллическим электродом в воздухе". Elektronnaya Obrabotka Materialov 53, № 2 (2017): 45–49. https://doi.org/10.5281/zenodo.1053272.

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The article presents the results of the development of a high current nanosecond discharge module above the liquid surface (distilled water and ethyl alcohol solution). The electrical and optical characteristics of the discharge were examined. The conditions for the discharge ignition above fluids on the base of ethyl alcohol and distilled water, and of the discharge between the metal (blade) and the liquid electrode were defined. These discharges are of interest for use in water purification systems (purification of the water surface from the organic films) and the synthesis of nanoparticles (carbon). Приведены результаты разработки модуля сильноточного наносекундного разряда над поверхностью жидкости (дистиллированной воды и раствора этилового спирта). Исследованы электрические и оптические характеристики разряда. Определены условия зажигания разряда над жидкими средами на основе этилового спирта и дистиллированной воды и разряда между металлическим (лезвие) и жидким электродами. Эти разряды представляют интерес для использования в системах очистки воды (поверхности воды от органических пленок) и синтеза наночастиц (углерода).
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Levko, Dmitry, and Laxminarayan L. Raja. "Influence of the electron field emission on the magnetized direct current high-pressure discharge." Journal of Applied Physics 132, no. 24 (2022): 243301. http://dx.doi.org/10.1063/5.0124685.

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The influence of electron field emission on the sub-normal mode of a magnetized direct current high-pressure helium discharge is analyzed using the two-dimensional axisymmetric fluid model. It is observed that in spite of accounting for a more intense electron emission mechanism, discharge still operates in the sub-normal mode. However, the field emission driven discharge is characterized by a smaller discharge voltage and a larger discharge current. For large values of the electric field enhancement factor, the discharge voltage can be as low as ∼40 V, and the discharge current is a few amperes. It is also seen that for large values of the field enhancement factor and small values of the ballast resistor, rather dense plasma (density ∼ 1017 m−3) can be generated on the nanosecond time scale.
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Zhang, Cheng, Zehui Liu, Jintao Qiu, Han Bai, Fei Kong, and Tao Shao. "Measurement of runaway electron beam current in nanosecond-pulse discharges by a Faraday cup." Laser and Particle Beams 36, no. 3 (2018): 369–75. http://dx.doi.org/10.1017/s026303461800040x.

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AbstractMeasurement of runaway electron beam (REB) is essential to investigate behavior of runaway electrons produced in nanosecond-pulse gas discharge. A Faraday cup is designed to measure the REB current in nanosecond-pulse discharge when the applied dV/dt is 75 kV/ns. The Faraday cup considers the impendence match with the oscilloscope and the design of the receiving part. The experimental results show that the measured REB current has a rise time of 348 ps and a full width at half maximum of 510 ps. The comparison of the measurement results by the Faraday cup and a REB collector confirm that the Faraday cup is able to measure REB current in nanosecond-pulse discharge. Furthermore, consecutive waveforms of the REB currents show stable results by using the designed Faraday cup. In addition, effects of the interelectrode gap, gas pressure, and cathode material on the REB current are investigated by the designed Faraday cup, and the measurement results provide characteristics of REB current under different conditions. The REB current decreases when the gap spacing or gas pressure increases. REB current increases with the cathode diameter. It indicates that the high-energy electrons are generated not only at the edge of the cathode but also on the side surface of the cathode.
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Popov, N. A. "Kinetic processes initiated by a nanosecond high-current discharge in hot air." Plasma Physics Reports 37, no. 9 (2011): 807–15. http://dx.doi.org/10.1134/s1063780x1108006x.

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Shuaibov, A. K., R. V. Gritsak, A. I. Minya, et al. "Gas-Discharge Point Source of UV Radiation Based on a Gas-Vapor Mixture of Argon and Copper." Elektronnaya Obrabotka Materialov 58, no. 4 (2022): 81–87. http://dx.doi.org/10.52577/eom.2022.58.4.81.

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The characteristics of a pulse periodic source of a long-range UV radiation with overvoltage pumping by a bipolar discharge of nanosecond duration between copper electrodes in argon at atmospheric pressure are investigated. Copper vapors were introduced into the discharge due to the ectonic mechanism, in which a sufficient amount of the electrode material vapors is introduced into the discharge gap due to microexplosions of inhomogeneities of the surface of metal electrodes in a strong electric field of an overvoltage high-current nanosecond discharge. The characteristics of an overvoltage nanosecond discharge at a distance between the electrodes of 2 mm are studied. The emission spectra of the discharge were analysed, and the intensity of the UV radiation of a point emitter was optimized depending on the supply voltage of the high-voltage modulator and the repeti-tion rate of discharge pulses. The identification of the emission spectra of plasma made it possible to establish the main excited plasma products that form the spectrum of the UV radiation of the plas-ma. The study of the spectral characteristics of plasma based on gas-vapor mixtures "copper – ar-gon" showed that the most intense were the spectral resonance spectral lines of the copper atom and ion. It was found that a space-uniform overvoltage nanosecond discharge was ignited between copper electrodes at an inter-electrode distance of 2 mm. It was found that the maximum value of the average UV power at p(Ar) = 101 kPa was observed for the UV-A range.
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Zhang, Shuai, Wen-chun Wang, Peng-chao Jiang, De-zheng Yang, Li Jia, and Sen Wang. "Comparison of atmospheric air plasmas excited by high-voltage nanosecond pulsed discharge and sinusoidal alternating current discharge." Journal of Applied Physics 114, no. 16 (2013): 163301. http://dx.doi.org/10.1063/1.4825053.

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Shuaibov, A.K., A.I. Minya, A.A. Malinina, et al. "Investigations of Synchronous Fluxes of Bactericidal UV Radiation of Transition Metal Oxides (Zn, Cu, Fe) in Pulsed Gas-Discharge Reactor on the Base of Overstressed Nanosecond Discharge in Air." Elektronnaya Obrabotka Materialov 55 (4) (August 16, 2019): 56–63. https://doi.org/10.5281/zenodo.3369706.

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The characteristics of an overstressed, high-current nanosecond discharge in atmospheric air between zinc, copper, and iron electrodes are given, with a distance  between the electrodes of 1–3 mm. It is established that this discharge is a point source of ultraviolet radiation in the spectral range of 200–300 nm and a stream of nanoparticles of zinc, copper, and iron oxides. The results of optimization of the UV emitter depending on the pumping conditions and parameters of the discharge medium, as well as the optical characteristics of the film nanostructures of transition metal oxides deposited on the surface of a glass substrate are presented.
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Conference papers on the topic "High-current nanosecond discharge"

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Udrea, M., A. M. Pointu, G. Modreanu, and M. Ganciu. "Long Double Discharge Controlled Nanosecond Electron Beam Generation." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/cleo_europe.1996.cthi39.

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The generation of intense electron beams by superposing two discharges has been reported, recently /1/, /2/. A new device which delivers a 0.2 - 0.5 m length high intensity electron beam in low pressure (0.1 - 3 mbar) argon discharge tubes is presented. A common K1K2 hollow cathode serves both as a pulsed discharge cathode and a d.c. discharge cathode. A1 and A2 are the main discharge and the d.c. discharge anodes, respectively. A stable electron beam is developing longitudinally, centered inside the tube, only for critical values of the auxiliary discharge current, for a given gas pressure. A 2 mm diameter plasma channel which is produced by the electron beam itself is surrounding the electron beam. A pulsed high voltage supply (60 kV ,100 ns, 500 A) and a continuous 6kV/200 mA power supply are used. The temporal behaviour of the electron beam was determined by means of a Faraday cup and a 500 Mhz Tektronix 540 oscilloscope. Less than 4 ns FWHM beam intensity was found. The power density of the electron beam is estimated to be about 3. 1010 W / cm2.
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Beloplotov, Dmitry, Mikhail Lomaev, Victor Tarasenko, Evgeny Lipatov, and Dmitry Sorokin. "Excitation of Diamonds by a Subnanosecond Runaway Electron Beam with an Electron Energy of Up to 200 keV Generated in a Nanosecond Gas Discharge." In 2018 20th International Symposium on High-Current Electronics (ISHCE). IEEE, 2018. http://dx.doi.org/10.1109/ishce.2018.8521219.

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Temelkov, K. A., N. K. Vuchkov, P. K. Telbizov, and N. V. Sabotinov. "He-Zn+ laser excited by nanosecond and microsecond pulsed longitudinal high-current discharges." In SPIE Proceedings, edited by Peter A. Atanasov, Tanja N. Dreischuh, Sanka V. Gateva, and Lubomir M. Kovachev. SPIE, 2007. http://dx.doi.org/10.1117/12.726989.

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Sun, Ao, Yong Hu, Weixin Rong, Wenbin Yu, and Feiyang Zhao. "A New Design of Solid-State Bipolar Nanosecond Pulse High-Frequency Discharge Power Supply for Engine Ignition System." In Automotive Technical Papers. SAE International, 2024. http://dx.doi.org/10.4271/2024-01-5063.

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<div class="section abstract"><div class="htmlview paragraph">In this study, a bipolar nanosecond pulse all-solid-state power supply was developed including Lenz capacitance (LC) resonant circuit and full-bridge inverter circuit to provide plasma ignition mode for internal combustion engines. The power supply converts the direct current (DC) voltage into voltage pulses using the inverter circuit with insulated gate bipolar transistor (IGBT), and subsequently amplifies the voltage through a pulse transformer. In the magnetic compression circuit, two capacitors were utilized to store energy simultaneously and approximately double the voltage. By exploiting the hysteresis characteristics of the magnetic switch, a nanosecond pulse output was achieved. An enhanced full-bridge inverter snubber circuit was proposed, which can effectively absorb surge voltage, with a voltage impact reduction on the primary winding of the pulse transformer to less than 1%. The newly developed bipolar nanosecond pulse power supply achieved a good performance with bipolar pulse frequency of 20 kHz and peak voltage of 7 kV, while the rising time is 550 ns and the half-height full-width duration is 420 ns. With surface dielectric barrier discharge (SDBD) load, the peak power of single pulse discharge can reach up to 35 kW, with the highest recorded value of deposited energy per pulse at approximately 0.9 mJ, and a final stable value observed at approximately 0.55 mJ, a uniform multi-streamer discharge was achieved.</div></div>
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