scholarly journals Тороидальный резонатор с электростатической фокусировкой

2019 ◽  
Vol 89 (3) ◽  
pp. 441
Author(s):  
Т.Д. Дауменов ◽  
М.А. Хизирова
Keyword(s):  
Electron Beam ◽  
Electrostatic Field ◽  
Beam Velocity

AbstractThe possibility of using an einzel lens built-in the region of concentration of electrostatic field in the cavity for modulation of the electron beam velocity is considered. It is shown that the application of the einzel lens as a velocity modulator does not affect the constant of interaction of the electron beam with the lens field.

Effect of Electron Beam Velocity Nonuniform on Helix TWT Output Performance

2019 ◽  
Author(s):  
Changsheng Shen ◽  
Ningfeng Bai ◽  
Jin Zhang ◽  
Xiaohan Sun ◽  
Hehong Fan
Keyword(s):  
Electron Beam ◽  
Output Performance ◽  
Beam Velocity

Image Degeneration by Charging Effects on Photographic Media

1969 ◽  
Vol 27 ◽  
pp. 132-133
Author(s):  
J. H. Reisner ◽  
J. A. Horner
Keyword(s):  
Electron Beam ◽  
Electrostatic Field ◽  
Effective Charge ◽  
Incident Beam ◽  
High Energy ◽  
Energy Electron ◽  
High Energy Electron ◽  
Conducting Surface ◽  
Charge Center

Insulators irradiated by a high energy electron beam in vacuum become charged positively. The charging produces an electrostatic field which causes the incident beam to be deflected progressively toward the effective charge center. Photographic materials are essentially dielectrics and exhibit charge phenomena which can disturb an image. The charging conditions are aggravated by suspending the photo material remotely from ground, or a conducting surface.

The Calculation and Experiment Based on the Finite Difference Method for the High-Voltage Electrostatic Field of Melting Electron Beam Gun

2014 ◽  
Vol 635-637 ◽  
pp. 31-34
Author(s):  
Hai Lang Liu ◽  
Hang Li ◽  
Hai Hua Yu ◽  
Yi Ping Huang
Keyword(s):  
Mathematical Model ◽  
Electron Beam ◽  
Electric Field ◽  
High Voltage ◽  
Electrostatic Field ◽  
Electron Beam Welding ◽  
Electrolytic Cell ◽  
Cell Experiment ◽  
Analysis Design ◽  
The Mathematical Model

Aiming at high voltage electrostatic field of melting electron beam gun system, taking 30 kv 60 kw melting electron beam gun for example, the structure of the electric field and boundary conditions was designed. And the mathematical model of the electric field was established. The method of numerical calculation was used to solve the mathematical model, and Matlab software was used to simulate the equipotential lines of the electric field. The electrolytic cell experiment was used to simulate high voltage electrostatic field distribution of the electron beam system. At the same time compared with the two different results, the reasons and the improved method were analyzed. For research and calculation high voltage electrostatic field of processing equipment such as electron beam welding, melting, etc, offers a more general analysis, design and calculation methods.

Electron Beam Velocity Spread Effect on a Clinotron Operation

2018 ◽  
Author(s):  
Yurii Kovshov ◽  
Sergey Ponomarenko ◽  
Sergey Kishko ◽  
Alexandr Likhachev ◽  
Alexandr Danik ◽  
...  
Keyword(s):  
Electron Beam ◽  
Velocity Spread ◽  
Beam Velocity

scholarly journals Simulation of Electron-Electron Two Stream Instability (ETSI)

2019 ◽  
Vol 1 ◽  
pp. 265-273
Author(s):  
F Gbaorun ◽  
E S John ◽  
T M Aper ◽  
T Daniel ◽  
F Eriba-Idoko
Keyword(s):  
Solar Wind ◽  
Electron Beam ◽  
Kinetic Energy ◽  
Electron Density ◽  
High Velocity ◽  
Electron Beams ◽  
Field Energy ◽  
Beam Velocity ◽  
Fixed Beam ◽  
Stream Instability

Stream instabilities are widely studied due to their importance in understanding astrophysical phenomena such as acceleration of high velocity of solar wind. In this work, the simulation of electron two stream instability was performed using Vorpal Simulation (VSim) code to explore the kinetic energy of plasma that arises due to the interaction between two counter-streaming electron beams at different velocities as well as different electron densities. The electron beam velocity was varied in the range of 3.58 × 106 m/s - 7.98 × 106 m/s and the resulting kinetic energy of plasma increased from 19 × 10−6J - 210 × 10−6J respectively. Also, increasing the electron density at fixed beam velocity from 1.05 × 1014m−3 - 5.84 × 1014m−3, the kinetic energy was observed to increase from 100 × 10−6J - 200 × 10−6J .However, the kinetic energy of the electron increases more with increasing beam velocity than with increasing electron density. The electric field energy which arose due to the interaction of the streaming beams did not exceed the energy of the beams.

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