scholarly journals Measurement of the duration of runaway current pulses using measuring equipment with bandwidths up to 50 GHz

2021 ◽  
Vol 2064 (1) ◽  
pp. 012009
Author(s):  
D V Beloplotov ◽  
V F Tarasenko ◽  
D A Sorokin ◽  
V S Ripenko ◽  
S B Leshchinskaia
Keyword(s):  
Electric Field ◽  
Measuring Equipment ◽  
Gas Pressure ◽  
Nanosecond Discharge ◽  
Runaway Electrons ◽  
Full Width ◽  
Half Maximum ◽  
Inhomogeneous Electric Field ◽  
Current Pulses

Abstract The duration of current pulses of runaway electrons generated during the formation of a nanosecond discharge in air in a sharply inhomogeneous electric field was measured using measuring equipment with a bandwidth of 50 GHz. The influence of the gas pressure and the shape of a cathode on the duration of the RE current pulses is investigated. Current pulses with full width at half maximum of 16–28 ps were recorded, depending on the conditions.

scholarly journals Backward runaway electrons in a subnanosecond air discharge at atmospheric pressure

2015 ◽  
Vol 34 (1) ◽  
pp. 23-30 ◽  
Author(s):  
Victor F. Tarasenko ◽  
Igor' D. Kostyrya ◽  
Dmitry V. Beloplotov
Keyword(s):  
High Voltage ◽  
Atmospheric Pressure ◽  
Exposure Dose ◽  
X Rays ◽  
Runaway Electrons ◽  
Full Width ◽  
Half Maximum ◽  
X Ray ◽  
Grid Cathode ◽  
Air Discharge

AbstractIn the paper, we study the conditions for the generation of backward runaway electrons through a grounded grid cathode in atmospheric pressure air at high-voltage pulses with a full width at half maximum of 1 ns and risetime of 0.3 ns applied to the gap from a SLEP-150 pulser. The study confirms that backward runaway electrons and X-rays do arise near grid cathodes in atmospheric pressure air. It is shown that the current of the backward beam and the X-rays from the gas diode depend differently on the interelectrode distance. The average X-ray exposure dose in a pulse is more than 3.5 mR.

Linear and nonlinear magneto-optical absorption in a triangular quantum well

2018 ◽  
Vol 32 (13) ◽  
pp. 1850162 ◽  
Author(s):  
Luong V. Tung ◽  
Pham T. Vinh ◽  
Le Dinh ◽  
Huynh V. Phuc
Keyword(s):  
Optical Absorption ◽  
Electric Field ◽  
Quantum Well ◽  
Electric Fields ◽  
Cyclotron Resonance ◽  
Optical Absorption Coefficient ◽  
Full Width ◽  
Half Maximum ◽  
Linear And Nonlinear ◽  
The Magnetic Field

In this work, we study the linear and nonlinear magneto-optical absorption spectrum in a triangular quantum well (TrQW) created by the applied electric field via investigating the phonon-assisted cyclotron resonance (PACR) effect. The results are calculated for a specific Ga[Formula: see text]Al[Formula: see text]As/GaAs quantum well. The magneto-optical absorption coefficient (MOAC) and the full width at half maximum (FWHM) are found to be significantly dependent on the magnetic field, the electric field and the temperature. Our results showed that the MOAC and FWHM increase with the magnetic, electric fields and temperature. The obtained results also suggest a useful way to control the magneto-optical properties of TrQW by changing these parameters.

Streamer Breakdown with Runaway Electrons Forming Diffuse Discharges in an Inhomogeneous Electric Field

2019 ◽  
Vol 62 (7) ◽  
pp. 1171-1180
Author(s):  
D. B. Beloplotov ◽  
M. I. Lomaev ◽  
D. A. Sorokin ◽  
V. F. Tarasenko
Keyword(s):  
Electric Field ◽  
Runaway Electrons ◽  
Inhomogeneous Electric Field ◽  
Streamer Breakdown

scholarly journals Corona with streamers in atmospheric pressure air in a highly inhomogeneous electric field

2020 ◽  
Vol 3 (4) ◽  
Author(s):  
Victor Tarasenko ◽  
Evgenii Baksht ◽  
Vladimir Kuznetsov ◽  
Victor Panarin ◽  
Victor Skakun ◽  
...  
Keyword(s):  
Electric Field ◽  
Atmospheric Pressure ◽  
Research Data ◽  
High Electric Field ◽  
Inhomogeneous Electric Field ◽  
Plane Electrode ◽  
Current Pulses ◽  
Positive Streamers

The paper presents research data on positive and negative coronas in atmospheric pressure air in a highly inhomogeneous electric field. The data show that irrespective of the polarity of pointed electrodes placed in a high electric field (>200 kV/cm), this type of discharge develops via spherical streamers even if the gap voltage rises slowly (£0.2 kV/ms). The start voltage of first positive streamers, compared to negative ones, is higher and the amplitude and the frequency of their current pulses are much lower: about two times and more than two orders of magnitude, respectively. The higher frequency of current pulses from negative spherical streamers provides higher average currents and larger luminous regions of negative coronas compared to positive ones. Positive and negative cylindrical streamers from a pointed to a plane electrode are detected and successive discharge transitions at both polarities are identified.

SIMULATION OF THE FLIGHT OF A DROP OF GALVANIC ELECTROLYTE IN AN INHOMOGENEOUS FIELD OF AN ELECTRIC CATCHER

2020 ◽  
Author(s):  
V.I. Garshin ◽  
◽  
A.R. Lebedev ◽  
S.E. Geraskova ◽  
◽  
...  
Keyword(s):  
Electric Field ◽  
Flight Path ◽  
Inhomogeneous Field ◽  
Inhomogeneous Electric Field ◽  
Trajectory Method

The article shows the relations for modeling an inhomogeneous electric field and the flight path of a drop of galvanic electrolyte in it. Estimates are preliminary. Articles and patents of authors in which non-uniform fields are already used are given. A modified trajectory method is proposed for evaluating the effectiveness of trapping harmful electrolyte droplets.

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