Volume 57, Issue 3-4, 2022

Issue 3-4, 2022

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 57. No 3-4/2022
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20220304-full

C O N T E N T S

ELECTRON BEAM EQUIPMENT
Peter J. Oving, Samuel De Sousa
Development ...  read more

Development of an Electron beam probing device for beam analysis at the exit of a 90° Electron beam bending system for inside welding
Peter J. Oving, Samuel De Sousa

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The quality of EBWelds, realized by a 90° deflected Electron Beam, depends on operator defined parameters of the welding equipment, like gun voltage and current, beam centering, focus current(s), bending magnet current, welding ...  read more

Design and Simulation of 400-kW Sheet Beam Optics and Magnetic Field for DC and RF Power Sources
Atif Alvi, Munawar Iqbal, Faizan Elahi, Ghalib U. Islam

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We present the design, simulation and analysis of 400 kW sheet beam gun. The beam optics, beam envelop and the magnetic field of the gun is designed and then simulated in CST PS. 100% beam transmission is achieved at the target ...  read more

Effect of the conductivity of the petri dish placed on the electrode on the surface layer of the spores in the PBII method
Shoya Umemoto, Koji Kakugawa, Kenta Nosaki, Takumi, Noda Takeshi Tanaka, Katia Vutova

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Plasma-based ion implantation (PBII) method is a technique that allows uniform ion implantation to a sample by applying a negative voltage to the model to draw and accelerate ions in the ion sheath existing around the piece. ...  read more

The sterilization effect of plasma-based ion implantation on prokaryotic microorganisms
Shoya Umemoto, Koji Kakugawa, Kenta Nosaki, Takumi, Noda Takeshi Tanaka, Katia Vutova

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The Plasma-based ion implantation (PBII) method is capable of low-temperature and short-time sterilization. In this study, we investigated the sterilization effect of PBII treatment on Gram-positive and Gram-negative bacteria’s ...  read more