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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/S207956292601015X</article-id><article-id custom-type="edn" pub-id-type="custom">HYXPZQ</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-628</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>МОДЕЛЬ ЧЕРЕНКОВСКОГО ВОДНОГО ДЕТЕКТОРА ДЛЯ ОБСЕРВАТОРИИ TAIGA-100</article-title><trans-title-group xml:lang="en"><trans-title>MODEL OF THE CHERENKOV WATER DETECTOR FOR THE TAIGA-100 OBSERVATORY</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>Гуделев</surname><given-names>М. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Gudelev</surname><given-names>M. P.</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>Дмитриева</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Dmitrieva</surname><given-names>A. N.</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>Богданов</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogdanov</surname><given-names>A. G.</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>Яшин</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Yashin</surname><given-names>I. I.</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>28</day><month>04</month><year>2026</year></pub-date><volume>17</volume><issue>2</issue><fpage>214</fpage><lpage>221</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гуделев М.П., Дмитриева А.Н., Богданов А.Г., Яшин И.И., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Гуделев М.П., Дмитриева А.Н., Богданов А.Г., Яшин И.И.</copyright-holder><copyright-holder xml:lang="en">Gudelev M.P., Dmitrieva A.N., Bogdanov A.G., Yashin I.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/628">https://npe.elpub.ru/jour/article/view/628</self-uri><abstract><p>Черенковский водный детектор (ЧВД), разрабатываемого в настоящее время проекта TAIGA-100 представляет собой цилиндрический бетонный бак, заглубленный в грунт и заполненный сверх-чистой водой. Внутренняя поверхность водного объема представляет собой светоизолированный “мешок” с высоким коэффициентом диффузного отражения. Водный бак находится под толстым слоем грунта для поглощения электрон-фотонной и адронной компонент ШАЛ. В верхней части детектора расположен фотоумножитель с полусферическим фотокатодом. Для изучения характеристик ЧВД была разработана его модель в программном пакете Geant4, проведено моделирование регистрации частиц в ЧВД.</p></abstract><trans-abstract xml:lang="en"><p>The Cherenkov water detector (CWD) of the TAIGA-100 experiment, which is now being developed, is a cylindrical concrete tank buried in the soil and filled with purified water. The inner surface of the water volume is a light-insulated “bag” with high coefficient of diffuse reflection. The water tank is located under a thick layer of soil to absorb the EAS electron-photon and hadron components. At the top of the detector, the photomultiplier with a hemispherical photocathode is installed. To study the characteristics of the CWD, its model was developed using the Geant4 software package, and the particle detection by the CWD was simulated. To successfully put the detector into operation, it is necessary to determine the lifetime of photons in the CWD, the detector’s response to muons, gammas and hadrons, and to determine the rejection coefficient of gamma and hadron events in the CWD. For this purpose, a detector model was developed in the Geant4 software package and particle registration by the detector was simulated.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гамма-астрономия</kwd><kwd>черенковский водный детектор</kwd><kwd>моделирование</kwd><kwd>широкие атмосферные ливни</kwd><kwd>космические лучи</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gamma-ray astronomy</kwd><kwd>Cherenkov water detector</kwd><kwd>simulation</kwd><kwd>extensive air showers</kwd><kwd>cosmic rays</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена на Уникальной научной установке “Экспериментальный комплекс НЕВОД”.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Budnev N., Astapov I., Bezyazeekov P., et al. The TAIGA experiment: from cosmic ray to gamma-ray astronomy in the Tunka valley // J. Phys.: Conf. Ser. 2016. 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