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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/S2079562926010100</article-id><article-id custom-type="edn" pub-id-type="custom">NQNKPO</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-477</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>Разделение и применение изотопов. Масс-спектрометрия</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Separation and Application of Isotopes. Mass Spectrometry</subject></subj-group></article-categories><title-group><article-title>К ВОПРОСУ О ПОВЫШЕНИИ РАЗДЕЛИТЕЛЬНОЙ СПОСОБНОСТИ ГАЗОВОЙ ЦЕНТРИФУГИ</article-title><trans-title-group xml:lang="en"><trans-title>ON THE ISSUE OF INCREASING THE SEPARATION CAPACITY OF A GAS CENTRIFUGE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8501-8004</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Джуля</surname><given-names>Д. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Dzhulya</surname><given-names>D. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра "Молекулярная физика", аспирант</p></bio><email xlink:type="simple">denis.dzhulya@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8221-658X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Боговалов</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogovalov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра "Молекулярная физика", профессор</p></bio><email xlink:type="simple">SVBogovalov@mephi.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0888-9839</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тронин</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tronin</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра "Молекулярная физика", и. о. зав. кафедры</p></bio><email xlink:type="simple">IVTronin@mephi.ru</email><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 Institye)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>16</day><month>04</month><year>2026</year></pub-date><volume>17</volume><issue>1</issue><fpage>5</fpage><lpage>11</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Джуля Д.Н., Боговалов С.В., Тронин И.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Джуля Д.Н., Боговалов С.В., Тронин И.В.</copyright-holder><copyright-holder xml:lang="en">Dzhulya D.N., Bogovalov S.V., Tronin I.V.</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/477">https://npe.elpub.ru/jour/article/view/477</self-uri><abstract><p>Несмотря на тщательную оптимизацию, разделительная способность газовых центрифуг (ГЦ) всегда была меньше верхнего предела, определяемого формулой Дирака. Недавно было показано, что этот предел был сильно завышен. Тем не менее, разделительная способность современных ГЦ остается в несколько раз ниже уточненного нами верхнего предела. Целью данной работы является определение причин дефицита разделительной способности и определение мер, которые бы позволили ее повысить. Наш анализ показывает, что подавление разделения происходит в разреженных областях газа, где скорость радиальной диффузии превосходит скорость осевой конвекции. Это приводит к твердотельному распределению концентрации и подавлению разделения. Мы предположили, что увеличение плотности потока массы в разреженной области должно приводить к повышению разделительной способности ГЦ. В модели прямоточной ГЦ мы получили увеличение разделительной способности оптимальной ГЦ до величины всего в три раза меньше Дираковского верхнего предела за счет увеличения плотности потока массы в разреженной области.</p></abstract><trans-abstract xml:lang="en"><p>Despite careful optimization, the separation capacity of gas centrifuges (GC) has always been less than the upper limit determined by the Dirac formula. It was recently shown that this limit was greatly overestimated. Nevertheless, the separation capacity of modern GC remains several times lower than the upper limit specified by us. The purpose of this work is to identify the causes of the separation capacity deficit and identify measures that would increase it. Our analysis shows that the suppression of separation occurs in rarefied regions of the gas, where the rate of radial diffusion exceeds the rate of axial convection. This leads to a solid-state concentration distribution and suppression of separation. We assumed that an increase in the density of the mass flow in a sparse region should lead to an increase in the separation capacity of GC. In the direct-flow GC model, we obtained an increase in the separation capacity of the optimal GC to a value only three times less than the Dirac upper limit due to an increase in the density of the mass flow in a sparse region.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>разделение изотопов</kwd><kwd>газодинамика</kwd><kwd>разделительная способность</kwd><kwd>газовые центрифуги</kwd></kwd-group><kwd-group xml:lang="en"><kwd>isotope separation</kwd><kwd>gas dynamics</kwd><kwd>separation capacity</kwd><kwd>gas centrifuges</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">Cohen K.P., Murphy G.M. The Theory of Isotope Separation as Applied to the Large-Scale Production of U235. 1951. New York: McGraw-Hill. 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