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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">nuc</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник НЯЦ РК</journal-title><trans-title-group xml:lang="en"><trans-title>NNC RK Bulletin</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1729-7516</issn><issn pub-type="epub">1729-7885</issn><publisher><publisher-name>Национальный ядерный центр Республики Казахстан</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52676/1729-7885-2023-1-97-103</article-id><article-id custom-type="elpub" pub-id-type="custom">nuc-507</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>Статьи</subject></subj-group></article-categories><title-group><article-title>ПРИМЕНЕНИЕ МЕТОДА ЖИДКОСТНОЙ СЦИНТИЛЛЯЦИИ ДЛЯ ОПРЕДЕЛЕНИЯ СУММАРНОЙ АЛЬФА-, БЕТА-АКТИВНОСТИ В ВОДЕ</article-title><trans-title-group xml:lang="en"><trans-title>APPLICATION OF LIQUID SCINTILLATION METHOD FOR MEASURING THE GROSS ALPHA-, BETA-ACTIVITY IN WATER</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>Мустафина</surname><given-names>К. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Mustafina</surname><given-names>K. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мустафина Куралай Тасбулатовна - инженер-лаборатории ядерно-физических методов анализа отдела мониторинга и эколого-аналитических исследований.</p><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">kuralay@nnc.kz</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>Жамалдинов</surname><given-names>Ф. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhamaldinov</surname><given-names>F. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жамалдинов Фаиль Фиргатович - начальник лаборатории ядерно-физических методов анализа отдела мониторинга и эколого-аналитических исследований.</p><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">zhamaldinov@nnc.kz</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>Романенко</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Romanenko</surname><given-names>Ye. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Романенко Екатерина Викторовна - инженер 2 категории группы спектрометрических измерений лаборатории ядерно-физических методов анализа отдела мониторинга и эколого-аналитических исследований.</p><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">pinchukova@nnc.kz</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>Шакенов</surname><given-names>Е. З.</given-names></name><name name-style="western" xml:lang="en"><surname>Shakenov</surname><given-names>Ye. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шакенов Ербол Зейнелгазинович - инженер 1 категории лаборатории ядерно-физических методов анализа отдела мониторинга и эколого-аналитических исследований.</p><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">shakenov@nnc.kz</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>Меркель</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Merkel</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Меркель Алена Игоревна - инженер 2 категории службы обеспечения качества работ отдела мониторинга и эколого-аналитических исследований.</p><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">merkel@nnc.kz</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>Сальменбаев</surname><given-names>С. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Salmenbayev</surname><given-names>S. Ye.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сальменбаев Саян Елеусизович.</p><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">zhamaldinov@nnc.kz</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Филиал «Институт радиационной безопасности и экологии» РГП НЯЦ РК<country>Казахстан</country></aff><aff xml:lang="en">RSE NNC RK Branch “Institute of Radiation Safety and Ecology”<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2023</year></pub-date><volume>0</volume><issue>1</issue><fpage>97</fpage><lpage>103</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мустафина К.Т., Жамалдинов Ф.Ф., Романенко Е.В., Шакенов Е.З., Меркель А.И., Сальменбаев С.Е., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Мустафина К.Т., Жамалдинов Ф.Ф., Романенко Е.В., Шакенов Е.З., Меркель А.И., Сальменбаев С.Е.</copyright-holder><copyright-holder xml:lang="en">Mustafina K.T., Zhamaldinov F.F., Romanenko Y.V., Shakenov Y.Z., Merkel A.I., Salmenbayev S.Y.</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://journals.nnc.kz/jour/article/view/507">https://journals.nnc.kz/jour/article/view/507</self-uri><abstract><p>Приведены результаты исследований по применению метода определения суммарной альфа-, бета-активности в воде с использованием жидкостного сцинтилляционного счетчика (ЖСС) Quantulus 1220. Изучены и выполнены основные процедуры подготовки и спектрометрического измерения водных образцов. Определены эффективность регистрации альфа-, бета-частиц в зависимости от гашения и оптимальный параметр разделения альфа-, бета-излучения для применяемой методики. Отработка и испытания методики проводилась на модельных растворах с различной концентрацией и составом альфа-, бета-излучателей, а также путем участия в межлабораторных сличениях. Результаты показали, что использование ЖСС позволяет достаточно быстро и точно проводить оценку суммарной альфа- и бета-активности в воде на уровне ниже регламентируемых пределов без применения трудоемкой подготовки проб.</p></abstract><trans-abstract xml:lang="en"><p>The results of research on the application of the method of measurement of gross alpha-, beta-activity in water using the liquid scintillation counter (LSC) Quantulus 1220 are presented. Basic procedures of preparation and spectrometric measurement of aqueous samples were studied and performed. The detection efficiency of alpha-, beta-particles depending on quenching and the optimum alpha-, beta-radiation separation parameter for the method used were determined. Testing and validation of the technique was carried out on model solutions with different concentrations and composition of alpha- and beta-emitters, as well as by participating in interlaboratory comparisons. The results demonstrated that the use of LSS allows for a sufficiently fast and accurate estimation of the gross alpha- and beta-activity in water below the regulated limits without the use of labor-intensive sample preparation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>радионуклиды</kwd><kwd>радиоактивность воды</kwd><kwd>суммарная альфа-</kwd><kwd>бета-активность</kwd><kwd>жидко-сцинтилляционный счет</kwd><kwd>альфа/бета разделение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>radionuclides</kwd><kwd>radioactivity of water</kwd><kwd>gross alpha-</kwd><kwd>beta-activity</kwd><kwd>liquid scintillation counting</kwd><kwd>alpha/beta separation</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Данные исследования финансировались Министерством энергетики Республики Казахстан в рамках научно-технической программы «Развитие атомной энергетики в Республике Казахстан» (ИРН – BR09158470).</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">D. 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