scholarly journals PIC simulation of a two-foil vircator

2017 ◽  
Vol 35 (2) ◽  
pp. 362-365 ◽  
Author(s):  
A.E. Dubinov ◽  
V.P. Tarakanov
Keyword(s):  
Electron Beam ◽  
Phase Portrait ◽  
Microwave Radiation ◽  
Spectral Characteristics ◽  
Squeezed State ◽  
Pic Simulation ◽  
Microwave Generation ◽  
Generation Frequency ◽  
Particle In Cell ◽  
Electronic Phase

AbstractParticle-in-cell (PIC) simulation of a two-foil magnetoinsulated vircator is carried out. Evolution of electron phase portrait has been studied. Formation of two regions with a squeezed state of electron beam is observed, separated from each other by an electronic phase vortex. The power of two-foil vircator's microwave generation was calculated. It is demonstrated that in the phase vortex mode, the power of vircator's microwave radiation may excel the outcome power of a usual one-foil vircator by two times. The spectral characteristics of two-foil vircators were studied. It was found that it is necessary to change the energy of electrons for the variation of primary microwave generation frequency.

scholarly journals PIC-моделирование генерации CВЧ-излучения в отражательном триоде радиального типа с расходящимся замагниченным электронным пучком

2020 ◽  
Vol 46 (4) ◽  
pp. 18
Author(s):  
А.Е. Дубинов ◽  
В.П. Тараканов
Keyword(s):  
Electron Beam ◽  
Microwave Radiation ◽  
Peak Power ◽  
Radiation Spectrum ◽  
Beam Current ◽  
Beam Dynamics ◽  
Particle In Cell ◽  
Cell Simulation ◽  
Electron Beam Dynamics

This paper presents particle-in-cell simulation of the reflex triode with radially diverging magnetized electron beam. Dynamics of the electron beam and generation characteristics of the reflex triode are studied in the work. It is shown that two virtual cathodes are formed in it. It was calculated that the peak power of the microwave radiation reaches P=19 MW at the beam current I0=5 kA and potential of the cathode Uc=‒100 kV. There is a peak in the microwave radiation spectrum at the frequency ν = 5.2 GHz.

Microwave Generation during 100 keV Electron Beam Relaxation in GOL-3

2013 ◽  
Vol 63 (1T) ◽  
pp. 286-288 ◽  
Author(s):  
A. V. Burdakov ◽  
A. V. Arzhannikov ◽  
V. S. Burmasov ◽  
I. A. Ivanov ◽  
M. V. Ivantsivsky ◽  
...  
Keyword(s):  
Electron Beam ◽  
Microwave Generation

Design Sheet Beam Gun for THz Traveling-Wave Tube

2014 ◽  
Vol 541-542 ◽  
pp. 470-473 ◽  
Author(s):  
Zhan Liang Wang ◽  
Yu Bin Gong ◽  
Hua Rong Gong ◽  
Jin Jun Feng ◽  
Xiong Xu
Keyword(s):  
Electron Beam ◽  
Traveling Wave ◽  
Design Method ◽  
Terahertz Wave ◽  
Wave Radiation ◽  
Traveling Wave Tube ◽  
Wave Tube ◽  
Electron Device ◽  
Particle In Cell ◽  
Sheet Electron Beam

The Sheet Electron Beam Vacuum Electron Device is an Attractive Choice for Generating High Power Millimeter/terahertz Wave Radiation. the Sheet Electron Beam Gun is a Key Component for the Sheet Beam Vacuum Electron Device. in this Paper, a Novel Sheet Electron Beam Gun was Proposed for a Terahertz Traveling-Wave Tube. the Theories of Sheet Beam Gun are Deduced Based on the Round Beam Gun Theories. the Track of 24.5kV, 1A, 0.4mm8mm Sheet Beam is Gained through 3D Particle-in-Cell Simulation and the Theories are Verified. the Investigation Results Show that, the Design Method of the Sheet Beam Gun is Easy and Reliable.

scholarly journals Brief Communication: The double layer in the separatrix region during magnetic reconnection

2015 ◽  
Vol 22 (2) ◽  
pp. 167-171
Author(s):  
J. Guo ◽  
B. Yu
Keyword(s):  
Electron Beam ◽  
Magnetic Reconnection ◽  
Double Layer ◽  
Particle In Cell ◽  
Acoustic Instability ◽  
Ion Acoustic ◽  
Evolution Stage ◽  
Spatial Size ◽  
Electron Holes ◽  
Observation Results

Abstract. With two-dimensional (2-D) particle-in-cell (PIC) simulations we investigate the evolution of the double layer (DL) driven by magnetic reconnection. Our results show that an electron beam can be generated in the separatrix region as magnetic reconnection proceeds. This electron beam could trigger the ion-acoustic instability; as a result, a DL accompanied with electron holes (EHs) can be found during the nonlinear evolution stage of this instability. The spatial size of the DL is about 10 Debye lengths. This DL propagates along the magnetic field at a velocity of about the ion-acoustic speed, which is consistent with the observation results.

3D simulation of electron beam squeezed-state generation in a two-section drift tube and analysis of its characteristics

2016 ◽  
Vol 42 (8) ◽  
pp. 792-795 ◽  
Author(s):  
A. G. Petrik ◽  
S. A. Kurkin ◽  
A. A. Koronovskii ◽  
A. E. Hramov
Keyword(s):  
Electron Beam ◽  
Drift Tube ◽  
3D Simulation ◽  
Squeezed State ◽  
State Generation
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