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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/S2079562926010392</article-id><article-id custom-type="edn" pub-id-type="custom">BYLUKW</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-671</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>Ускорители заряженных частиц для ядерных технологий</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Charged Particles Accelerators for Nuclear Technologies</subject></subj-group></article-categories><title-group><article-title>ХАРАКТЕРИСТИКИ ГАЗОВОГО ТОРМОЗНОГО ИЗЛУЧЕНИЯ, СОЗДАВАЕМОГО ЭЛЕКТРОННЫМ ПУЧКОМ СИНХРОТРОНА</article-title><trans-title-group xml:lang="en"><trans-title>CHARACTERISTICS OF GAS BREMSSTRAHLUNG GENERATED BY AN ELECTRON BEAM OF A SYNCHROTRON</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>Садофьев</surname><given-names>И. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Sadofev</surname><given-names>I. D.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Панин</surname><given-names>М. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Panin</surname><given-names>M. P.</given-names></name></name-alternatives><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>2026</year></pub-date><pub-date pub-type="epub"><day>11</day><month>05</month><year>2026</year></pub-date><volume>17</volume><issue>3</issue><fpage>465</fpage><lpage>472</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Садофьев И.Д., Панин М.П., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Садофьев И.Д., Панин М.П.</copyright-holder><copyright-holder xml:lang="en">Sadofev I.D., Panin M.P.</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/671">https://npe.elpub.ru/jour/article/view/671</self-uri><abstract><p>Выполнены расчеты поля газового тормозного излучения, создаваемого электронным пучком синхротрона при торможении частицами остаточного воздуха вакуумной камеры. Расчеты проведены для вакуумной камеры накопительного кольца синхротрона с энергией электронов 6 ГэВ, что соответствует энергии пучка синхротронов ESRF, Франция и проектируемого ускорителя СИЛА, Россия. Рассмотрена радиационная обстановка вблизи направления распространения газового тормозного излучения, учтены вторичные заряженные частицы и фотонейтроны, образованные вследствие развития электромагнитных каскадов в совокупности с фотоядерными реакциями. Моделирование радиационных полей, возникающих при работе синхротрона, выполнялось методом Монте-Карло с помощью программного пакета GEANT4. Приводятся угловые и спектральные распределения газового тормозного излучения вблизи вакуумной камеры, а также результаты для мощности эффективной дозы вблизи оси линии вывода синхротронного излучения.</p></abstract><trans-abstract xml:lang="en"><p>The calculations of the gas bremsstrahlung field generated by an electron beam of a synchrotron during interactions with particles of residual gas were performed. The calculations were performed for the vacuum chamber of the storage ring of the synchrotron with an electron energy of 6 GeV, which corresponds to the beam energy of the ESRF synchrotron, France, and the projected SILA laser-synchrotron, Russia. The radiation situation near the direction of gas bremsstrahlung propagation is considered, secondary charged particles and photoneutrons formed as a result of the electromagnetic cascades development in combination with photonuclear reactions are taken into account. The radiation fields arising during synchrotron operation were simulated with the Monte Carlo method using the GEANT4 software package. Angular and spectral distributions of gas bremsstrahlung near the vacuum chamber are presented, as well as the results for the effective dose rate near the axis of the synchrotron radiation output line.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>газовое тормозное излучение</kwd><kwd>спектр</kwd><kwd>метод Монте-Карло</kwd><kwd>GEANT4</kwd><kwd>радиационная безопасность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gas bremsstrahlung</kwd><kwd>spectrum</kwd><kwd>Monte Carlo method</kwd><kwd>GEANT4</kwd><kwd>radiation safety</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">Mobilio S., Boscherini F., Meneghini C. Synchrotron Radiation: Basics, Methods, and Applications. 2015. 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