Results 31 to 40 of about 842 (116)

Formation of reactive species via high power microwave induced DNA damage and promoted intrinsic pathway-mediated apoptosis in lung cancer cells: An <i>in vitro</i> investigation. [PDF]

Fundam Res
Rana JN, Mumtaz S, Han I, Choi EH.
europepmc   +1 more source

Performance of the Secondary Townsend Emission through the Electric Discharge Characteristics in Coaxial Vircator

, 2018
A. M. Shagar, S. A. El-Latif, F. Ebrahim
semanticscholar   +1 more source

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A Gas-Discharge Vircator: Results of Simulation

IEEE Transactions on Plasma Science, 2021
A gas-discharge magnetically insulated vircator containing two tubes, one of which is filled with low-pressure gas is proposed. Its particle-in-cell (PIC)/Monte Carlo (MC) simulation is carried out. The dynamics of free electrons, the dynamics of the virtual cathode (VC) as a whole, and gas ionization are calculated using the example of helium.
Alexander Dubinov, Vladimir Tarakanov
exaly   +3 more sources

Study of multibeam relativistic vircator

2017 Eighteenth International Vacuum Electronics Conference (IVEC), 2017
We have developed and investigated the multibeam relativistic vircator scheme. The effect of synchronization of virtual cathodes oscillations that is manifested in the “imposition” of the spectral characteristics by the beam with the highest current to the entire system has been discovered.
Andrey Andreev, Nikita Frolov, Artem Badarin   +2 more
exaly   +3 more sources

An Efficient Vircator With High Output Power and Less Drifting Electron Loss by Forming Multivirtual Cathodes

IEEE Electron Device Letters, 2022
Multi virtual cathodes (MVCs) were created in an axial vircator utilizing two dielectric reflectors (DRs). The wall charge of drifting electrons on the surface of DRs led to the creation of VC2 and VC3 in the downstream area of drift tube, according to ...
Eun Ha Choi, Sohail Mumtaz
exaly   +2 more sources

Simulation of Window for Vircator

2025 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON)
A virtual cathode oscillator, commonly known as a vircator a High Power Microwave (HPM) source that generates brief yet powerful bursts of microwave energy. Radiating window is one of the critical element of high power devices.
Shivabhagya M S, D Senthil Kumar, Srinivas Nekkanti, Sisir Kumar Nayak, Subrata Kumar Datta   +4 more
openaire   +2 more sources

High-Efficiency S-Band Axial Vircator

International Vacuum Electronics Conference, 2022
A novel anode design and characterization procedure for a high-efficiency multistage Vircator is presented. A three-dimensional and parametric model of the axial Vircator with a realistic anode grid was created to analyze the interaction between ...
Antonio Manna, Franco Di Paolo, Ernesto Limiti   +2 more
exaly   +2 more sources

On the vircator peak power optimization

2017 International Conference on Electromagnetics in Advanced Applications (ICEAA), 2017
This paper presents a model aimed at calculating the peak power generated by an axial Virtual Cathode Oscillators. The model combines the Larmor's Formula and one-dimensional computational simulations in order to obtain the value of the charge accumulated in the virtual cathode and its acceleration.
E. Neira, Y.-Z. Xie, F. Vega
openaire   +2 more sources

Simulation of a Magnetically Isolated Vircator with an Under-Limit Electron Beam

Plasma Physics Reports, 2020
Vladimir Tarakanov, Dubinov A E, Tarakanov V P   +2 more
exaly   +3 more sources

Investigation of External Field Injected Double Gap Vircator

International Conference on Plasma Science, 2018
Applying external field to vircator has been performed to reach various aims which are phase locking, microwave signal amplification, frequency control and enhancing vircator performance [1]–[3]. In this study, double gap vircator with feedback structure
Simsek Demir
exaly   +2 more sources