PLASMA-CATHODE ELECTRON SOURCE BASED ON A LOW-PRESSURE ARC DISCHARGE IN THE MODE OF THE EMISSION CURRENT ENHANCEMENT

2015 ◽  
Vol 19 (1) ◽  
pp. 19-27 ◽  
Author(s):  
T. V. Koval ◽  
Vladimir N. Devyatkov ◽  
Bao Hung Nguyen ◽  
Vladimir V. Uglov
Keyword(s):  
Arc Discharge ◽  
Low Pressure ◽  
Electron Source ◽  
Emission Current ◽  
Plasma Cathode

scholarly journals Measurement of plasma parameters in an electron source with a plasma cathode based on a low-pressure arc discharge

2019 ◽  
Vol 1393 ◽  
pp. 012006
Author(s):  
S Yu Doroshkevich ◽  
M S Vorobyov ◽  
S S Kovalsky ◽  
I V Lopatin ◽  
N N Koval ◽  
...  
Keyword(s):  
Arc Discharge ◽  
Low Pressure ◽  
Electron Source ◽  
Plasma Parameters ◽  
Plasma Cathode

scholarly journals Influence of electron emission on operation of a constricted arc discharge in a pulsed forevacuum plasma-cathode electron source

2021 ◽  
Vol 2064 (1) ◽  
pp. 012124
Author(s):  
A V Kazakov ◽  
E M Oks ◽  
N A Panchenko
Keyword(s):  
Electron Beam ◽  
Electron Emission ◽  
Arc Discharge ◽  
Electron Source ◽  
Operating Voltage ◽  
Large Radius ◽  
Plasma Cathode ◽  
Discharge System ◽  
Arc Voltage ◽  
Minimum Value

Abstract The research of influence of electron emission and processes associated with the formation of a pulsed large-radius electron beam on operation of a constricted arc discharge, which forms emission plasma in a forevacuum plasma-cathode electron source, is presented. Processes, occurring in case of generation of the electron beam at forevacuum pressure range 3–20 Pa, provide lower operating voltage of the constricted arc discharge. The constricted arc voltage decreases with increasing pressure and increasing accelerating voltage. However, at pressure more than 15 Pa, the arc voltage decreases until a certain minimum value is reached, and then arc voltage is almost independent on pressure and accelerating voltage. This minimum value of the constricted arc voltage is on average 1.5–2 times higher as compared with voltage of the cathodic arc at the same discharge current. The observed decrease of operating voltage of the constricted arc is most likely caused by accelerated back-streaming ions, which move toward the emission electrode from beam-produced plasma. These accelerated ions partially penetrate into the hollow anode of discharge system through the mesh emission electrode and facilitate formation of the arc plasma, and thus provides lower voltage of the constricted arc.

scholarly journals PLASMA CHARACTERISTICS IN SQUARE PULSE ARC DISCHARGE OF PLASMA CATHODE ELECTRON SOURCE DEVICE

2013 ◽  
Vol 16 (2) ◽  
Author(s):  
Agus Purwadi ◽  
Bambang Siswanto ◽  
Wirjoadi . ◽  
Lely Susita R.M. ◽  
Sudjatmoko .
Keyword(s):  
Discharge Plasma ◽  
Arc Discharge ◽  
Debye Length ◽  
Electron Plasma ◽  
Pulse Mode ◽  
Electron Source ◽  
Anode Chamber ◽  
Plasma Current ◽  
Plasma Parameters ◽  
Plasma Cathode

Plasma parameters in Plasma Cathode Electron Source Device (PCESD) are very important things because they will determine the eficiency of its electron extraction. Square pulse mode of PCESD’s arc discharge plasma current can be obtained by using Pulse Forming Network (PFN) circuits which is called Arc Discharge Power Supply (ADPS). The square pulse mode is necessity to simplify in electron irradiation dose calculation. ADPS is connected with Hollow Anode Chamber (HAC) which is placed inside of PCESD to produce arc discharge plasma. The value of arc discharge plasma current is the main key to determine plasma parameters that can be measured by using Rogowski coil. The value of the arc discharge plasma current is IADPS = 206.30 A with pulse width  = 80 μs. Whereas the plasma parameters values inside of the HAC are: the electron plasma density ne = (16.85  1019) m-3, electron plasma temperature Te = 2.609 eV, electron plasma frequency fe = 116.74 GHz, and Debye length λD = 9.958 µm respectively.

Millisecond Pulsed Arc Discharge in a Forevacuum-Pressure Plasma-Cathode Electron Source

2017 ◽  
Vol 45 (8) ◽  
pp. 2075-2079 ◽  
Author(s):  
Alexander V. Medovnik ◽  
Viktor A. Burdovitsin ◽  
Andrey V. Kazakov ◽  
Efim M. Oks
Keyword(s):  
Arc Discharge ◽  
Electron Source ◽  
Plasma Cathode ◽  
Pressure Plasma ◽  
Pulsed Arc Discharge ◽  
Pulsed Arc

Study of ionization processes in a low-pressure arc discharge

2019 ◽  
Vol 0 (9) ◽  
pp. 9-14
Author(s):  
A. V. Ushakov ◽  
◽  
I. V. Karpov ◽  
L. Yu. Fedorov ◽  
E.A. Dorozhkina ◽  
...  
Keyword(s):  
Arc Discharge ◽  
Low Pressure ◽  
Ionization Processes

scholarly journals Sterilization of dielectric containers using a fore-vacuum pressure plasma-cathode electron source

2015 ◽  
Vol 652 ◽  
pp. 012044 ◽  
Author(s):  
D Zolotukhin ◽  
V Burdovitsini ◽  
E Oks ◽  
A Tyunkov ◽  
Yu Yushkov
Keyword(s):  
Electron Source ◽  
Vacuum Pressure ◽  
Plasma Cathode ◽  
Pressure Plasma

Magnetic State of the Nickel Oxide Nanoparticles Formed in Low-Pressure Arc Discharge Plasma

2021 ◽  
Vol 2021 (13) ◽  
pp. 1656-1660
Author(s):  
A. V. Ushakov ◽  
I. V. Karpov ◽  
L. Yu. Fedorov ◽  
V. G. Demin ◽  
E. A. Goncharova ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Discharge Plasma ◽  
Magnetic State ◽  
Arc Discharge ◽  
Low Pressure ◽  
Oxide Nanoparticles ◽  
Nickel Oxide Nanoparticles
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