Перегляд за автором "Dovbnya, N.A."

Результати 1-13 з 13

An influence of gamma-irradiation and ²³⁸U fragments on single-crystal silicon properties

Dovbnya, A.N.; Yefimov, V.P.; Pugachev, G.D.; Dyomin, V.S.; Dovbnya, N.A.; Gordienko, J.E.; Borodin, B.G.; Babychenko, S.V.; Semenets, T.A. (Вопросы атомной науки и техники, 2006)

In the paper the processes of accumulation of radiation defects, formed by fragments of ²³⁸U nucleus fission, for forming of amorphous phases in the bulk of single-crystal silicon and the influence of the temperature ...
Application of CdTe (CdZnTe) detectors for radioactive waste characterization

Dovbnya, N.A.; Karasyov, S.P.; Kutny, V.E.; Rybka, A.V.; Shlyakhov, I.N.; Uvarov, V.L. (Вопросы атомной науки и техники, 2002)

The radiation detectors based on wide-zone semiconductor CdTe (CdZnTe) monocrystals have promising advantages for their application in investigation (characterization) of radioactive waste. Among these advantages there are ...
Converting high-current pulsed electron beams of small transverse dimensions

Dovbnya, N.A.; Pugachev, G.D.; Shapoval, I.N.; Shapoval, I.I. (Вопросы атомной науки и техники, 2001)
Current control of the electron beam formed in the magnetron gun with a secondary-emission cathode

Dovbnya, A.N.; Reshetnyak, N.G.; Zakutin, V.V.; Chertishchev, I.A.; Romasko, V.P.; Dovbnya, N.A. (Вопросы атомной науки и техники, 2013)

Data are reported on electron beam generation and beam current control in two types of secondary-emission cathode magnetron guns. The influence of the magnetic field value and field distribution on the formation of the ...
Electron linac application for characterization and disposal of radioactive waste

Dikiy, N.P.; Dovbnya, N.A.; Sayenko, S.Yu.; Uvarov, V.L. (Вопросы атомной науки и техники, 2001)

Rapid development of nuclear engineering, medicine and radiation technologies is accompanied by increase of the radioactive waste (RAW) including long-lived ones. A RAW handling assumes their element content and activity ...
Electron linac production of Co-57 for gamma-chamber calibration

Dikiy, N.P.; Dovbnya, N.A.; Repikhov, O.A.; Shlyakhov, I.N.; Uvarov, V.L.; Kravchenko, Ja.N. (Вопросы атомной науки и техники, 2001)

Gamma-chambers are widely used in medicine diagnostics to obtain an organ image investigated by means of the scintigraphy method. A radionuclide Tc-99m which is accumulated in the organ and irradiates photons with the ...
Formation of uniform electron beams on large-area targets

Dovbnya, A.N.; Dovbnya, N.A.; Kolot, Z.M.; Popenko, V.A.; Savchenko, A.N.; Styopin, D.L.; Shendrik, V.A. (Вопросы атомной науки и техники, 2004)

The report describes the results of calculations and experimental studies of the system for scanning the beam on outside targets of electron accelerators by magnetic quadrupole lenses.
Longitudinal-radial motion of an electron beam in the solenoidal field of the secundary-emission magnetron gun

Dovbnya, A.N.; Dovbnya, N.A.; Mazmanishvili, А.S.; Reshetnyak, N.G. (Вопросы атомной науки и техники, 2017)

The results of experimental studies and numerical calculations on the generation of an electron beam by a magnetron gun with a secondary-emission cathode are presented. With the aim of obtaining precision characteristics, ...
Numerical simulation of transport of a high-current electron beam generated by the secondary-emission cathode gun in a decreasing solenoidal field

Dovbnya, A.N.; Dovbnya, N.A.; Mazmanishvili, A.S.; Reshetnyak, N.G.; Chertishchev, I.A. (Вопросы атомной науки и техники, 2015)

The software tool has been developed for computing the electron beam formation by means of the secondary-emission cathode magnetron gun in the electron energy range between 30 and 65 keV at beam transport in a decreasing ...
Radiation tolerance investigation of a Si detectors and microelectronics using NSC KIPT linacs

Dovbnya, A.N.; Maslov, N.I.; Dovbnya, N.A. (Вопросы атомной науки и техники, 2001)

A possibility of full irradiation tests of semiconductor detectors and microelectronics using electron accelerators are considered in the present work. The techniques for irradiation and for detector tests were described. ...
Studying the modes of electron beam generation in a magnetron gun with a secondary-emission cathode

Dovbnya, A.N.; Zakutin, V.V.; Reshetnyak, N.G.; Dovbnya, N.A. (Вопросы атомной науки и техники, 2006)

Modes of electron beam generation and parameters were investigated using a magnetron injection gun with a secondary-emission cathode depending on the magnetic field value and distribution. For the first time it has ...
The electron accelerator for technological purposes with a secondary-emission electron source as the basis

Dovbnya, A.N.; Zakutin, V.V.; Reshetnyak, N.G.; Romas’ko, V.P.; Chertishchev, I.A.; Dovbnya, N.A.; Lavrinenko, S.D. (Вопросы атомной науки и техники, 2007)

Results are reported from the studies on the electron beam parameters of the accelerator based on a secondary emission source. The accelerator forms the electron beam with an electron energy of up to 100 keV, a current up ...
The method for analysis and optimization of the e,X-beam path of electron linac-based radiation installations

Dovbnya, A.N.; Dovbnya, N.A.; Nikiforov, V.I.; Uvarov, V.L. (Вопросы атомной науки и техники, 2006)

A method is proposed for numerical analysis of radiation characteristics of output devices of the electron linac. The method enables an optimum arrangement of the objects irradiated in the field of electron radiation ...

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Перегляд за автором "Dovbnya, N.A."

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