issue 5-6

Radiation-Induced Degradation of Two Organic Pollutants from Aqueous Solution on Nanocomposites
Zohra Bouberka, Abdelouahab Nadim, A. Khalil Benabbou, Ulrich Maschke

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TiO2 colloid / LDHs clay nanocomposites, prepared by direct coprecipitation method, were used as photocatalysts in the reaction of (3-(4-chlorophenyl)-1,1-dimethylurea) and 4-chlorophenol decomposition in water. ...  read more

Electro-Optical Devices by Electron Beam Technique: Polymer Dispersed Liquid Crystal Materials
Ulrich Maschke, Mohamed Bouchakour, Yazid Derouiche, Zohra Bouberka

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This contribution focuses on a detailed investigation of polymerization/crosslinking process, either induced by UV radiation (λ = 365 nm), or by electron beam exposure of polypropyleneglycoldiacrylate monomers, in conjunction ...  read more

Mask Less Lithography Cluster for Low and Medium Volume Manufacturing
Viacheslav V. Kazmiruk, Ilya G. Kurganov, Tatiana N. Savitskaja

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In the paper is presented a technological cluster for mask less e-beam lithography (ML2) and metrology for fast non destructive defect inspection and review, and for CD, 2D and 3D measurement.

The cluster potentialities comply ...  read more

Study of Electron Beam Resists: Negative Tone HSQ and Positive Tone SML300
Ivan Kostic, Anna Bencurova, Anna Konecnikova, Pavol Nemec, Adrian Ritomsky, Elena Koleva, Katia Vutova, Georgi Mladenov

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In this paper the contrast and sensitivity characteristics are investigated concerning the negative tone electron beam resist HSQ (hydrogen silsesquioxane) and the positive tone SML300 electron beam organic resist, designed ...  read more

The Exploitation of Concentrated Energy Flows for Welding and Protective Coating Production
M. V. Radchenko, Yu. O. Shevtsov, T. B. Radchenko, D. A. Nagorniy

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The results of coatings properties investigations, made by electron beam and gas powder cladding process and technological demands as well, are presented in the article.

В работата са представени ...  read more

Electron Beam Welding Machines with Plasma Cathode Gun
Sergey I. Belyuk, Igor V. Osipov, Alexander G. Rau, Grigory V. Semenov

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Electron beam machines with the plasma cathode guns are presented. All machines possess high extent of automation. The high-voltage source has effective protection against breakdowns and small time of restoration. Machines ...  read more

Electron-Optical Characteristics of Beams Generated by Electron Plasma Sources
Vladimir A. Gruzdev, Vitali G. Zaleski

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Electron-optical characteristics of electron beams generated in sources of two types are considered. One of these sources is based on reflected hollow cathode discharge and the other one rests on a modified reflected discharge. ...  read more

Technological Electron Beams Parameters Evaluation Based on the Optical Radiation in Vacuum
Alexey L. Goncharov, Victor K. Dragunov, Andrey P. Sliva, Maksim A. Portnov, Alexey V. Scherbakov, Ivan S. Сhulkov

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The work is devoted to exploring the determining possibilities of the high-power technology electron beams parameters by the beam glow image on the residual gases in the vacuum chamber. Digital camera is used to make images in the visible spectrum.

 ...  read more

Simulation of Time of Current Increasing in Impulse Triode High Voltage Glow Discharge Electron Guns
Igor Melnyk

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In this article defining of the time of current increasing in triode high voltage glow discharge electron guns for investigation its technological possibilities is considered. Provided analyse is based on calculation the parameters ...  read more

An RF Excited Plasma Cathode Electron Beam Gun Design
Sofia del Pozo, Colin Ribton, David R. Smith

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A plasma cathode electron beam (EB) gun is presented in this work. A radio frequency (RF) excited plasma at 84 MHz was used as the electron source to produce a beam power of up to 3.2 kW at -60 kV accelerating voltage. The ...  read more