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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vestifm</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-математических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-2430</issn><issn pub-type="epub">2524-2415</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-2430-2019-55-4-435-444</article-id><article-id custom-type="elpub" pub-id-type="custom">vestifm-474</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МАТЕМАТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICS</subject></subj-group></article-categories><title-group><article-title>Алгоритм расчета траекторий электронов в электростатическом и магнитостатическом полях электронно-оптических систем</article-title><trans-title-group xml:lang="en"><trans-title>Calculation algorithm of the trajectories of electrons in electrostatic and magnetostatic fields of electron-optical systems</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Крот</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Krot</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Крот Александр Михайлович – доктор технических наук, профессор, заведующий лабораторией моделирования самоорганизующихся систем.</p><p>ул. Сурганова, 6, 220012, г. Минск</p></bio><bio xml:lang="en"><p>Alexander M. Krot – Dr. Sc. (Engineering), Professor, Head of the Laboratory of Self-Organization Systems Modeling.</p><p>6, Surganov Str., 220012, Minsk</p></bio><email xlink:type="simple">alxkrot@newman.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петрович</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrovich</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петрович Ольга Николаевна – кандидат технических наук, доцент, заведующий кафедрой технологий программирования.</p><p>ул. Блохина, 29, 211440, г. Новополоцк</p></bio><bio xml:lang="en"><p>Olga N. Petrovich – Ph. D. (Engineering), Associate Professor, Head of the Department of Programming Technologies.</p><p>29, Blokhin Str., 211440, Novopolotsk</p></bio><email xlink:type="simple">o.petrovich@psu.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Русецкий</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Rusetski</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Русецкий Игорь Станиславович – старший преподаватель кафедры энергетики и электронной техники.</p><p>ул. Блохина, 29, 211440, г. Новополоцк</p></bio><bio xml:lang="en"><p>Igor S. Rusetski – Senior Lecturer at the Department of Energy and Electronic Engineering.</p><p>29, Blokhin Str., 211440, Novopolotsk</p></bio><email xlink:type="simple">i.rusetski@psu.by</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Объединеный институт проблем информатики  Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>United Institute of Informatics Problems of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Полоцкий государственный университет</institution></aff><aff xml:lang="en"><institution>Polotsk State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>07</day><month>01</month><year>2020</year></pub-date><volume>55</volume><issue>4</issue><fpage>435</fpage><lpage>444</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Крот А.М., Петрович О.Н., Русецкий И.С., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Крот А.М., Петрович О.Н., Русецкий И.С.</copyright-holder><copyright-holder xml:lang="en">Krot A.M., Petrovich O.N., Rusetski I.S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vestifm.belnauka.by/jour/article/view/474">https://vestifm.belnauka.by/jour/article/view/474</self-uri><abstract><p>Предложен алгоритм численного расчета траекторий электронов, эмитированных плазмой, в случае движения пучка в аксиально-симметричных электростатическом и магнитостатическом полях. Данный алгоритм основан на технологии дискретизации пучка заряженных частиц токовыми трубками и методе декомпозиции расчетной области. Моделирование полей и численное решение уравнений движения частиц осуществляются с применением квазиструктурированных сеток.</p></abstract><trans-abstract xml:lang="en"><p>An algorithm for numerical calculation of the trajectories of electrons emitted by plasma in the electron beam moving in axially symmetric electrostatic and magnetostatic fields is proposed. This algorithm is based on the technology of charged particle beam discretization by current tubes and the decomposition method of the computational domain. Field simulation and numerical solution of equations for particle motion are carried out with the use of quasi-structured grids.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>деформируемые трубки тока</kwd><kwd>электронно-оптические системы</kwd><kwd>декомпозиция расчетной области</kwd><kwd>квазиструктурированные сетки</kwd><kwd>нелинейные самосогласованные задачи</kwd><kwd>движение электронных пучков</kwd><kwd>аксиально-симметричные электростатическое и магнитостатическое поля</kwd></kwd-group><kwd-group xml:lang="en"><kwd>deformable current tubes</kwd><kwd>electron-optical systems</kwd><kwd>decomposition of the computational domain</kwd><kwd>quasistructured grids</kwd><kwd>nonlinear self-consistent problems</kwd><kwd>electron beam motion</kwd><kwd>axially symmetric electrostatic and magnetostatic fields</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Котельников, И. 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