The Journal of Kharkov National University, Vol. 443,
Physical series "NUCLEI, PARTICLES, FIELDS", Issue 2 /6/, 1999

Title Page   (60-Kb PDF file)
 
ARTICLES
 
 V.Yu. Korda
 Diffraction theory of elastic scattering of three-nucleon-nuclei by heavy nuclei (Rus.)
 A.V. Kirichok, V.M. Kuklin, V.I. Lapshin
 Dissipative mechanisms of spatial structures formation (Rus.)
 S.V. Berezovsky, V.F. Klepikov, Yu.V. Sereda, M.A. Lysenko
 Symmetries in the systems with incommensurate phases (Rus.)
17 
 V.F. Klepikov
 Symmetries in the critical points and phase transitions in the field models (Rus.)
23 
 V.V. Tovstiak
 Estimation of radio sensetive volume of membrane under electron irradiation (Rus.)
26 
 A.M. Avilov, I.A. Borshkovsky, S.I. Ivanov
 The acoustic radiation excited by electroplasma action on the metall targets (Rus.)
31 
 V.P. Demutskiy, S.S. Zub, V.M. Rashkovan
 Static stable equilibrium of the free superconductive coil in the system of three mechanically coupled superconductive coils (Rus.)
34 
 E.I. Polunovskij, A.A. Shishkin, . Motojima, V.I. Muratov
 Drift resonance of charged particle in toroidal magnetic trap with coulomb scattering (Rus.)
41 
 A.A. Bizyukov, VI.V. Bobkov, I.K. Tarasov
 Deformation of drift EH-layer by external RF-field in accellerator with anode layer  (Rus.)
47 
 F. luni-ibi, V.. Lazurik, Yu.V. Rogov
 The analysis of modeling rrrs of charge-deposition disribution due to secondary electrons
51 
 A.A. Asheko, V.G. Gordiyenko, V.V. Moroz
 Reflecting technique for research of dielectric properties of water in milimetre band wavelength (Rus.)
59 
 .. rin
 Non-uniform fields in liquid dielectrics
65 
 V.G. Kirichenko
 Dynamics of astrozol particles in space (Rus.)
70 
 N.A. Azarenkov, V.G. Kirichenko, S.V. Lytovchenko, Ye.P. Nechiporenko, V.M. Kuklin, V.Ye. Semenenko, V.A. Chishkala
 Problems of materials science today
Fundamental and applied researches at the department of reactor building materials, KhSU
 (Rus.)
73 
 A.M. Budyansky, A.V. Zykov, V.I. Farenik
 Probe control of plasma-vacuum etching processes in microelectronica technology (Rus.)
77 
 S.S. Alimov, V.V. Bobkov, V.P. Veryemyeyenko, D.L. Ryabchikov
 Vacuum plasma deposition of carbone coatings under sinthesis of tungsten carbide powder (Rus.)
86 
 A.G. Chunadra, A.A. Miroshnik
 Influence deposition of energy with HF-magnetron sputtering of transparent conducting coverings on parameters of films (Rus.)
89 
 D.V. Zinoviev, A.Ph. Tseluyko, N.N. Yunakov
 Investigation the processes of formation  TiN  films in plasma-beam discharge (Rus.)
93 
 S.N. Stervoyedov
 Implantation dose measuring system (Rus.)
97 


DIFFRACTION THEORY OF ELASTIC SCATTERING OF THREE-NUCLEON-NUCLEI BY HEAVY NUCLEI

V.Yu. Korda

Abstract
The analysis of experimental data on elastic scattering of light nuclei by nuclei is usually carried out with the help of the complex optical potential. However that potential is not a hermitian operator and is not applicable at the energies above the pions creation threshold. The diffraction theory is free of these deficiencies, has only three fitting parameters and considers the projectile's inner structure in closed form. The diffraction theory of the elastic scattering of three-nucleon-nuclei by nuclei, which is applicable in the wide range of the scattering angles, is built on the basis of general theory of diffraction interaction. The results of calculations are compared to the experimental data.
KEY WORDS: three-nucleon-nucleus, diffraction theory, elastic scattering, differential cross section.
Back to top


DISSIPATIVE MECHANISMS OF SPATIAL STRUCTURES FORMATION

A.V. Kirichok, V.M. Kuklin, V.I. Lapshin

Abstract
It is shown, that the energy dissipation and also the processes, which result in losses of mechanical, elastic and electromagnetic energy of perturbations, can form spatial structures in nonequilibrium nonlinear media. In strongly nonequilibhum media, where the perturbations of negative energy are realized, the long-lived spatial structures result in anomalous extraction of energy from nonequilibrium sources. In weakly nonequilibrium media, where all perturbations have positive energy, the nonlinear structures are formed close to a threshold of instability, which have a characteristic discrete spectrum with abnormally narrow linewidth. The decrease of noise level can lead to freezing of one of metastable states. Moreover, the phase relations in the cold system (low temperatures or low noise level) can not be determined unambiguously, if the transition path to this state was not specified.
KEY WORDS: dissipative structures, phase states, nonlinear nonequilibrium media, structure transitions.
Back to top


SYMMETRIES IN THE SYSTEMS WITH INCOMMENSURATE PHASES

S.V. Berezovsky, V.F. Klepikov, Yu.V. Sereda, M.A. Lysenko

Abstract
The symmetrial analysis of the variational equation, which describes the modulated phases of the systems with the scalar order parameter, has been carried out. All of Li groups were received as well as the invariant particular solutions of given nonlinear IV-order differential equation. For arbitrary values of material parameters the equation obey the translation symmetry group, which is also the variational symmetry. The presence of this group allows to reduce the order of equation down to the second. Translationally invariant distributions of order parameter describe the space-homogeneous states of the system. The symmetry of variatioual equation in the tricrytical Lifshitz point expands due to the scale transformation group. Due to this circumstance one can decrease the order of equation down to the first, that allows to find the exact particular space-inhomogeneous distribution of order parameter.
KEY WORDS: Li groups, variational equation, Landau theory, phase transition, invariant solution, order parameter.
Back to top


SYMMETRIES IN THE CRITICAL POINTS AND PHASE TRANSITIONS IN THE FIELD MODELS

V.F. Klepikov

Abstract
The hidden symmetries (scale and conformal) in the critical points of the physical field systems, including the ones generated by the high variations, are discussed. The influence of hidden symmetries on the features of critical behavior of the field models is considered.
KEY WORDS: Symmetries, field systems, phase transition, variation, critical points.
Back to top


ESTIMATION OF RADIO SENSETIVE VOLUME OF MEMBRANE UNDER ELECTRON IRRADIATION

V.V. Tovstiak

Abstract
The possibility of application of the "target" theory for the interpretation of experimental data on effect of an exposure on bioobjects critical systems which were not connected with genom is discussed. The obtained analytical evaluation of magnitude of radiosensing volume in relation to a modification of cells electrophoretic mobility confirms the importance of the contribution of secondary electrons which are energetically capable to modify a structural state and volumetric distribution of a charge in nearsurface stratums of a cell membrane. The analysis of radiosensing volume of a cell membrane magnitude on mobility decreasing observed specifies that immediately acting factor of electronic exposure influence on membranes are the products of water radiolysis.
KEY WORDS: an exposure, theory of target, principle of hit, deposited doze, secondary electrons, inactivation, bioobjects, cell membrane.
Back to top


THE ACOUSTIC RADIATION EXCITED BY ELECTROPLASMA ACTION ON THE METALL TARGETS

A.M. Avilov, I.A. Borshkovsky, S.I. Ivanov

Abstract
The excitation of acoustic impulses in hydrogenation titanium samples by electroplasma action was investigated. It was ascertained that there are anomalies in behaviour of theirs amplitude in definite electrical fields. It, probably, binds with nuclear fusion was initiated in deuterogenic samples.
KEY WORDS: Acoustic radiation, piesoelectric detector, metall targets, spark discharge, electroplasma excitation.
Back to top


STATIC STABLE EQUILIBRIUM OF THE FREE SUPERCONDUCTIVE COIL IN THE SYSTEM OF THREE MECHANICALLY COUPLED SUPERCONDUCTIVE COILS

V.P. Demutskiy, S.S. Zub, V.M. Rashkovan

Abstract
Stable equilibrium of the superconductive magnetic four rings system has been analysed. Magnetic system has been considered as in the dipole approach, and for the case of the ideal linear contours. In the modelling we have used the modified type of the Lagrangian formalism. It has been strictly analytically proved that such configuration of magnetic bodies is insufficient for the realization of the MPW. Seen out analysis is interesting for the determination of the minimum admission of the magnetic couples, which provides the possibile existence of the MPW.
KEY WORDS: stability, Lagrangian formalism, mathematical model, MPW.
Back to top


DRIFT RESONANCE OF CHARGED PARTICLE IN TOROIDAL MAGNETIC TRAP WITH COULOMB SCATTERING

E.I. Polunovskij, A.A. Shishkin, . Motojima, V.I. Muratov

Abstract
If the charged particle moves in the magnetic field with the rotational transformation of field lines it may be in resonance with the magnetic field perturbation (drift resonance). This resonance may be used for several physical goals, for example helium ash removal or high energy ions penetration in plasma. However the dissipation physical phenomena in plasma, such as coulomb scattering or electrical field fluctuations, which appear in plasma due to instabilities, can break drift resonance and interrupt helium ash removal or high energy ions penetration. In the present paper the conditions (density profiles and density value in center of plasma), when coulomb scattering does not destroy the drift resonance, are obtained.
KEY WORDS: helium ash, fusion reactor, coulomb scattering.
Back to top


DEFORMATION OF DRIFT EH-LAYER BY EXTERNAL RF-FIELD IN ACCELLERATOR WITH ANODE LAYER

A.A. Bizyukov, VI.V. Bobkov, I.K. Tarasov

Abstract
In this paper the influence of RF-filed on behaviour of drift electron near-anode layer in modified accelerator with anode layer is investigated. Interaction between RF-power and near-anode layer leading to synchronization of electron drift velocity at the point of hydrodynamic resonance is studied. It is shown that RF-power influence on diocotron oscillations has a threshold character and is caused by deformation of electron drift velocity profile in EH-layer.
KEY WORDS: drift electron layer, drift instability, synchronization zone, diocotron oscillations.
Back to top


THE ANALYSIS OF MODELING ERRORS OF CHARGE-DEPOSITION DISTRIBUTION DUE TO SECONDARY ELECTRONS

F. luni-ibi, V.. Lazurik, Yu.V. Rogov

Abstract
Using the trajectory translation method a detailed data set about charge-deposition distribution due to secondary electrons in thin slabs has been computed. Th considered slabs have thickness from 0.5 to 50 mg/cm2 and made of materials with atomic numbers from 4 to 79. It has been considered that the secondary electrons are produced in slabs by monoenergetic primary electron beam with energy from 1 to 10 MeV. On the basis of the obtained data, a theoretical analyze of the modeling errors of results and the efficiency of the trajectory translation method to solve such problems have been made. Simple analytical expression that allows to make expert evaluations of the modeling errors in some practical cases is developed.
KEY WORDS: Translation method, Charge-deposition, modeling errors, efficiency, imitation.
Back to top


REFLECTING TECHNIQUE FOR RESEARCH OF DIELECTRIC PROPERTIES OF WATER IN MILIMETRE BAND WAVELENGTH

A.A. Asheko, V.G. Gordiyenko, V.V. Moroz

Abstract
The precise method for investigation of complex dielectric permitting dispersion of liquids with high absorbability (tgd ³ 1) in the temperature range where liquid phase exists. The method is based on the measurement of reflected power as a function of investigated liquid layer width. The analytical expressions for calculation of e' and e'' are proposed. The analysis of possible errors is carried out.
KEY WORDS: dielectric spectroscopy, complex dielectric permittivity, dipole relaxation, phase constant, attenuation constant.
Back to top


NON-UNIFORM FIELDS IN LIQUID DIELECTRICS

.. rin

Abstract
Electroconvection flows in liquid dielectrics placed between plane and cylindrical electrodes have been investigated. It has been assumed that ions are generated due to dissociation of an impurity and an injection of charge carriers from electrode surface. The computations of velocity field are carried out for some poorly conducting liquids. It has been shown that the main regularities of electroconvection can be described from the position of linear law of injection, when the charge density on the cathode is proportional to the intensity of an electric field.
KEY WORDS: liquid dielectrics, electric field, dissociation-injection conductivity, electrohydrodynamics, electroconvection flows.
Back to top


DYNAMICS OF ASTROZOL PARTICLES IN SPACE

V.G. Kirichenko

Abstract
On the base of calculation of the accelerations of the astrozol particles in space and on the base of their comparasion with astronomy and experimental data it was demonstrated that interaction of particles with the solar wind is the most effective.
KEY WORDS: astrozol, solar wind, magnetosphere, diamagnetic.
Back to top


PROBLEMS OF MATERIALS SCIENCE TODAY. FUNDAMENTAL AND APPLIED RESEARCHES AT THE DEPARTMENT OF REACTOR BUILDING MATERIALS, KhSU

N.A. Azarenkov, V.G. Kirichenko, S.V. Lytovchenko, Ye.P. Nechiporenko, V.M. Kuklin, V.Ye. Semenenko, V.A. Chishkala

Abstract
The paper gives a general overview of the main problems in materials science. Results of researches, which have been carried out at the Department of Reactor Building Materials, Kharkiv State University (KhSU), over many years in the field of materials science, in particular of reactor, high temperature and composite materials, are presented. These results' practical application in modern high technologies in different industries is studied.
KEY WORDS: materials science, nuclear reactors, structure-phase transformations, refractory metals, alloys, composite materials.
Back to top


PROBE CONTROL OF PLASMA-VACUUM ETCHING PROCESSES IN MICROELECTRONICA TECHNOLOGY

A.M. Budyansky, A.V. Zykov, V.I. Farenik

Abstract
Some advanced techniques of probe application in specific conditions of technological plasma is described. A number of practical methods of ion-plasma etching control by means of single and multiple Langmuir probes, directional electrostatic probe, and glow cathode-neutralizer are presented. A family of devices "Control" is described designed for etching control by probes using specially developed circuits of probe signal processing and original algorithms of etching curve analysis. Results of these devices tests with different technological processes on a large number of installations are presented. The general-purpose device "Plasmameter" designed for the automated determination of the key parameters of laboratory and technological plasma is also described. The probe control techniques are proved to be one of the most versatile and efficient diagnostic tools that do not assent but even overpass traditional methods by many features.
KEY WORDS: microelectronics technology, vacuum-plasma etching, ion-beam plasma, RF discharge, Langmuir probe, floating potential, in-line etching check.
Back to top


VACUUM PLASMA DEPOSITION OF CARBONE COATINGS UNDER SINTHESIS OF TUNGSTEN CARBIDE POWDER

S.S. Alimov, V.V. Bobkov, V.P. Veryemyeyenko, D.L. Ryabchikov

Abstract
In this paper traditional method of tungsten carbide synthesis from its oxides in vacuum has been realised. Before the synthesis carbon coating was deposited on the grain surface of initial powder of WO3 by means of vacuum-plasma methods. Composition of gas media of work chamber during deposition was investigated. Transitional layer of carbon films was investigated by means of secondary ion mass-spectrometry and X-ray analysis. From the research carried out new way to tungsten monocarbide synthesis from tungsten oxide powder on the base of arc sputtering device is suggested.
KEY WORDS: tungsten carbide, powder, films, coatings, magnetron sputtering device, arc sputtering device, Mass-Spectrometry.
Back to top


INFLUENCE DEPOSITION OF ENERGY WITH HF-MAGNETRON SPUTTERING OF TRANSPARENT CONDUCTING COVERINGS ON PARAMETERS OF FILMS

A.G. Chunadra, A.A. Miroshnik

Abstract
In work the influence of HF-capacity is investigated with drawing transparent condacting films indium-tin oxides by the methods of jet HF-magnetron sputtering. On the basis of the received dependences of resistance of coverings and factor of a transparency in seen area of a spectrum from a level of HF-capacity is established, that has a place an optimum level of HF- capacity, with which the covering with low resistance without reduction of a transparency in seen area of a spectrum is formed. The presence of an optimum level of HF-capacity can be caused by various physical properties of oxides indium and tin.
KEY WORDS: magnetron, level of HF-capacity, gas gauge.
Back to top


INVESTIGATION THE PROCESSES OF FORMATION TiN FILMS IN PLASMA-BEAM DISCHARGE

D.V. Zinoviev, A.Ph. Tseluyko, N.N. Yunakov

Abstract
In work the technique of account of technological process of TiN coverings deposition in conditions of thermoion deposition with use of the arc discharge with hot cathode in the plasma-beam mode is given. The comparison of the calculated data with experimental is carried out. The opportunity of films formation with deposition rate up to 2 mkm/min is shown. It is found the good conformity of the calculated data with the experimental values.
KEY WORDS: TiN, arc discharge, hot cathode.
Back to top


IMPLANTATION DOSE MEASURING SYSTEM

S.N. Stervoyedov

Abstract
Multichannel microprocessor based implantation dose measuring system of accelerator-implanter is described. The system is elaborated on the basis of the classic Faraday's cups, microprocessor PIC16F84 and allows to measure the ion beam current density at the range of 0100 mkA/cm2. The top limit of the implantation dose measuring is 1´1020 ion/cm2 with error £ 0.5%.
KEY WORDS: ion implantation, current density, Faradey cup, implantation dose, integrator.
Back to top