An investigation of electric field behaviour in semi-insulating GaAs using current pulses

1996 ◽  
Vol 29 (7) ◽  
pp. 1997-2003 ◽  
Author(s):  
M L Williams ◽  
I J Donnelly
2018 ◽  
Vol 4 (4) ◽  
pp. 1
Author(s):  
Farah Asyikin Abd Rahman ◽  
Izadi M ◽  
Kadir M.Z.A. Ab ◽  
Jasni J

This paper presents a study about electric field behaviour of 10kV polymer insulator with moss deposition under foggy condition. The aim of this simulation experiment was to determine if this field affect the initiation of pollution flashover. To study this effect, simulations were carried out using High Frequency Structure Simulator (HFSS). The simulation experiment includes the results of electric field distribution along the insulator and also the magnitude of electric field at three different locations in identifying the parts of the insulator’s surface that likely to initiate pollution flashover. The moss deposited polymer insulator displayed uniformed and considerably intense distribution of electric field with the clean insulator. The field result showed the likelihood in discharging a corona effect.  In short, the results indicated that electric field along the insulator surface would likely be influenced by moss deposition and foggy air.


Author(s):  
P. A. Bradley ◽  
G. Parry Jones ◽  
H. A. Kołodziej ◽  
Mansel Davies

Author(s):  
Bolestaw Mazurek ◽  
Slawomir Laskowski ◽  
Zdzislaw Staroniewicz

AbstractThe pulses of strong electric fields can be successfully used for sterilization of liquid fluids and water conditioning. Direct influence of an electric field can deactivate bacteria cells by means of electroporation. The process of wire explosion in water evoked by steep current pulses can be applied for the obtaining of metallic nano-colloids. A nano-colloid of silver shows a strong bactericidal property. Electrons from corona discharge plasma injected into water can be used for deactivation of hydrocarbon impurities in water.


2021 ◽  
Vol 2064 (1) ◽  
pp. 012009
Author(s):  
D V Beloplotov ◽  
V F Tarasenko ◽  
D A Sorokin ◽  
V S Ripenko ◽  
S B Leshchinskaia

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.


2020 ◽  
Vol 3 (4) ◽  
Author(s):  
Victor Tarasenko ◽  
Evgenii Baksht ◽  
Vladimir Kuznetsov ◽  
Victor Panarin ◽  
Victor Skakun ◽  
...  

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.


Sign in / Sign up

Export Citation Format

Share Document