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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">nguphys</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский физический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>SIBERIAN JOURNAL OF PHYSICS</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9447</issn><publisher><publisher-name>Новосибирский государственный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25205/2541-9447-2024-19-2-41-49</article-id><article-id custom-type="elpub" pub-id-type="custom">nguphys-318</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>ФИЗИКА ВЫСОКИХ ЭНЕРГИЙ, УСКОРИТЕЛЕЙ И ВЫСОКОТЕМПЕРАТУРНОЙ ПЛАЗМЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>HIGH-ENERGY AND ACCELERATOR PHYSICS, PHYSICS OF HIGH-TEMPERATURE PLASMA</subject></subj-group></article-categories><title-group><article-title>Измерения параметров поля нейтронов мониторами на основе газонаполненных пропорциональных счетчиков</article-title><trans-title-group xml:lang="en"><trans-title>Measurements of the Neutron Field Parameters with Monitors based on the Gas-Filled Proportional Counters</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>Ажгирей</surname><given-names>И. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Azhgirey</surname><given-names>I. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ажгирей Игорь Леонидович, кандидат физико-математических наук, начальник лаборатории</p><p>Протвино</p></bio><bio xml:lang="en"><p>Igor L. Azhgirey, Candidate of Physical and Mathematical Sciences, Head of the Laboratory</p><p>Protvino</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>Байшев</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Bayshev</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Байшев Игорь Сергеевич, кандидат физико-математических наук, ведущий научный сотрудник</p><p>Протвино</p></bio><bio xml:lang="en"><p>Igor S. Bayshev, Candidate of Physical and Mathematical Sciences, Leading Researcher </p><p>Protvino</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>Пикалов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pikalov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пикалов Владимир Александрович, начальник лаборатории </p><p>Протвино</p></bio><bio xml:lang="en"><p>Vladimir A. Pikalov, Head of the Laboratory</p><p>Protvino</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>Суманеев</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sumaneev</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Суманеев Олег Валентинович, научный сотрудник</p><p>Протвино</p></bio><bio xml:lang="en"><p>Oleg V. Sumaneev, Researcher</p><p>Protvino</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физики высоких энергий им. А. А. Логунова НИЦ «Курчатовский институт»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute for High Energy Physics named after A. A. Logunov of National Research Center “Kurchatov Institute”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>16</day><month>07</month><year>2024</year></pub-date><volume>19</volume><issue>2</issue><fpage>41</fpage><lpage>49</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ажгирей И.Л., Байшев И.С., Пикалов В.А., Суманеев О.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Ажгирей И.Л., Байшев И.С., Пикалов В.А., Суманеев О.В.</copyright-holder><copyright-holder xml:lang="en">Azhgirey I.L., Bayshev I.S., Pikalov V.A., Sumaneev O.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://nguphys.elpub.ru/jour/article/view/318">https://nguphys.elpub.ru/jour/article/view/318</self-uri><abstract><p>Нейтронные мониторы на основе газонаполненных пропорциональных счетчиков и первые результаты измерений были показаны на RuPAC-2018 и RuPAC-2021. Предполагается использовать эти детекторы для мониторинга стабильности условий проведения сеансов радиационной терапии. Здесь представлены процедура калибровки мониторов на источнике нейтронов AmBe и новые экспериментальные данные. Мониторы были использованы для измерения флюенса нейтронов за защитой экспериментальной установки «Центр коллективного пользования – радиобиологический стенд на углеродном пучке У-70» с энергией пучка ионов 450 МэВ/нуклон. Измерения сопровождались расчетным моделированием с использованием пакета программ CERN FLUKA. Показано хорошее согласие между результатами измерений и расчетов. Даже одиночный монитор со свинцовой вставкой, откалиброванный на AmBe-источнике, позволяет получать хорошие результаты в реальном нейтронном поле. Продемонстрирована возможность оценки флюенса нейтронов с энергией выше 10 МэВ по показаниям пары мониторов. Для улучшения качества измерений необходимо принимать во внимание разницу между условиями калибровки и измерений.</p></abstract><trans-abstract xml:lang="en"><p>Neutron monitors with the gas filled proportional counters inside and first data were presented at RuPAC-2018 and RuPAC-2021 conferences. It is planned to use such devices to monitor the stability of irradiation conditions during radiation therapy sessions. We present here the calibration procedure for these monitors at AmBe neutron source, and the new data. These monitors have been used to measure the neutron fluence behind the shielding of the 450 MeV/nucleon carbon beam based experimental facility “Shared use Center – radiobiological stand with the carbon beam of the U-70 accelerator at IHEP”. The measurements were supported by the set of extensive simulations using the CERN FLUKA code. Good agreement between the FLUKA simulations and measurements was shown. Even single monitor with lead insertion calibrated at AmBe neutron source allows to have a good result in the real neutron field. The possibility to estimate the fluence of the high energy neutrons with the energy above 10 MeV using data from the pair of monitors was demonstrated. To improve the quality of the measurements one needs to take into account difference between calibration and measurements conditions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>измерения поля нейтронов</kwd><kwd>газонаполненные пропорциональные счетчики</kwd><kwd>моделирование радиационного поля</kwd></kwd-group><kwd-group xml:lang="en"><kwd>neutron field measurements</kwd><kwd>gas-filled proportional chambers</kwd><kwd>radiation field simulations</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья подготовлена по материалам конференции Russian Particle Accelerator Conference (RuPAC’23), Budker INP, 11–15 September 2023.</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">Dabrowski A., Stickland D., Auzinger G., Pasztor G., Lujan P. et al. (CMS Collaboration). 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