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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">npe</journal-id><journal-title-group><journal-title xml:lang="ru">Ядерная физика и инжиниринг</journal-title><trans-title-group xml:lang="en"><trans-title>Nuclear Physics and Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-5629</issn><issn pub-type="epub">2079-5637</issn><publisher><publisher-name>МИФИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.56304/S2079562922050207</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-71</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>Математическое моделирование в ядерных технологиях</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Mathematical Modeling in Nuclear Technologies</subject></subj-group></article-categories><title-group><article-title>Модернизированная программа расчета импеданса связи элементов вакуумного тракта BeamImpedance2Dx</article-title><trans-title-group xml:lang="en"><trans-title>Modernized Program for the Vacuum Chamber Coupling Impedance Calculation BeamImpedance2Dx</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>Каминский</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kaminskii</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 115409 </p></bio><bio xml:lang="en"><p>Moscow, 115409 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мациевский</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Matsievskiy</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 115409 </p></bio><bio xml:lang="en"><p>Moscow, 115409 </p></bio><email xlink:type="simple">MatsievskiySV@gmail.com</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>Ращиков</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Rashikov</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 115409 </p></bio><bio xml:lang="en"><p>Moscow, 115409 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский ядерный университет “МИФИ”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>31</day><month>12</month><year>2023</year></pub-date><volume>14</volume><issue>6</issue><fpage>550</fpage><lpage>556</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Каминский В.И., Мациевский С.В., Ращиков В.И., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Каминский В.И., Мациевский С.В., Ращиков В.И.</copyright-holder><copyright-holder xml:lang="en">Kaminskii V.I., Matsievskiy S.V., Rashikov V.I.</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://npe.elpub.ru/jour/article/view/71">https://npe.elpub.ru/jour/article/view/71</self-uri><abstract><p>При разработке источников синхротронного излучения большое внимание уделяется исследованию нестабильностей пучка, ограничивающих его эмиттанс и время жизни. Одним из источников нестабильностей является возбуждение электромагнитных полей пучком в неоднородностях вакуумной камеры. Количественной характеристикой взаимодействия пучка с камерой является импеданс связи. В данной статье описано проведенное обновление программы BeamImpedance2D, ускоряющее расчет резистивного импеданса камеры за счет использования комплексного представления чисел и распределения расчетов между машинами вычислительного кластера. Приводится результат расчета импедансов реальной геометрии вакуумной камеры и ее аппроксимации.</p></abstract><trans-abstract xml:lang="en"><p>During synchrotron source development much attention is devoted to beam instability, which limits beam emittance and lifetime. One of the sources of beam instability is the electromagnetic field excitation in the vacuum chamber heterogeneous regions. The quantitative characteristic of the beam-chamber interaction is the coupling impedance. This paper describes modernization of the program BeamImpedance2D, which accelerates resistive impedance calculations by unitizing complex equation forms and distributed calculations among the computation cluster nodes. Comparison between calculations of the real vacuum chamber and its approximation are presented.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>импеданс связи</kwd><kwd>наведенные потенциалы</kwd><kwd>накопительное кольцо</kwd></kwd-group><kwd-group xml:lang="en"><kwd>coupling impedance</kwd><kwd>induced potentials</kwd><kwd>storage ring</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">Mounet N., Biancacci N., Amorim D. Impedance-Wake2D: Beam Impedance Calculation Program. 2021. https://twiki.cern.ch/twiki/bin/view/ABPComputing/ImpedanceWake20</mixed-citation><mixed-citation xml:lang="en">Mounet N., Biancacci N., Amorim D. 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