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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">vestift</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-технических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physical-technical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8358</issn><issn pub-type="epub">2524-244X</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestift-313</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>ЭНЕРГЕТИКА, ТЕПЛО- И МАССООБМЕН</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POWER ENGINEERING, HEAT AND MASS TRANSFER</subject></subj-group></article-categories><title-group><article-title>ИСТОЧНИК ЗАХВАТНОГО ГАММА-ИЗЛУЧЕНИЯ С ЭНЕРГИЯМИ ДО 7 МэВ И ДО 10 МэВ НА ОСНОВЕ ПОВЕРОЧНОЙ УСТАНОВКИ НЕЙТРОННОГО ИЗЛУЧЕНИЯ</article-title><trans-title-group xml:lang="en"><trans-title>A SOURCE OF NEUTRON CAPTURE GAMMA-RAY WITH ENERGY TO 7 MeV AND TO 10 MeV BASED ON NEUTRON CALIBRATION FACILITY</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>Комар</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Komar</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер</p></bio><bio xml:lang="en"><p>engineer</p></bio><email xlink:type="simple">damiankomar@yandex.ru</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>Лукашевич</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lukashevich</surname><given-names>R. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ведущий инженер</p></bio><bio xml:lang="en"><p>lead engineer</p></bio><email xlink:type="simple">lukashevich@atomtex.com</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>Гузов</surname><given-names>В. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Guzov</surname><given-names>V. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>главный метролог – начальник отдела радиационной метрологии</p></bio><bio xml:lang="en"><p>Head of Metrology Department</p></bio><email xlink:type="simple">guzov@atomtex.com</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>Кутень</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kutsen</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук, старший научный сотрудник, заведующий лабораторией теоретической физики и моделирования ядерных процессов</p></bio><bio xml:lang="en"><p>Ph. D. (Physics and Mathematics), Head of Laboratory of theoretical physics and simulation of nuclear processes</p></bio><email xlink:type="simple">semen_kuten@list.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-производственное унитарное предприятие «АТОМТЕХ»</institution></aff><aff xml:lang="en"><institution>SPE “ATOMTEX”</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт ядерных проблем Белорусского государственного университета</institution></aff><aff xml:lang="en"><institution>Research Institute for Nuclear Problems of Belarusian State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>08</day><month>08</month><year>2017</year></pub-date><volume>0</volume><issue>2</issue><fpage>96</fpage><lpage>103</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Комар Д.И., Лукашевич Р.В., Гузов В.Д., Кутень С.А., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Комар Д.И., Лукашевич Р.В., Гузов В.Д., Кутень С.А.</copyright-holder><copyright-holder xml:lang="en">Komar D.I., Lukashevich R.V., Guzov V.D., Kutsen S.A.</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://vestift.belnauka.by/jour/article/view/313">https://vestift.belnauka.by/jour/article/view/313</self-uri><abstract><p>Широкое распространение и использование техногенных источников ионизирующих излучений, в частности таких, как ускорители заряженных частиц и ядерные реакторы, приводит к появлению ряда прикладных задач по метрологическому обеспечению спектрометрической и дозиметрической аппаратуры, работающей в полях фотонного излучения с энергией до 10 МэВ. Контейнер-коллиматор с геометрией тепловых нейтронов установки поверочной нейтронного излучения (УПН- АТ140, УП «АТОМТЕХ») формирует коллимированный пучок нейтронов со значительной составляющей нейтронов тепловых энергий. Расположение в потоке тепловых нейтронов диска из титана позволяет получить поле захватного гамма-излучения до 7 МэВ, а диска из никеля – до 10 МэВ. Для экспериментального изучения спектральных характеристик поля захватного излучения использовался специализированный спектрометрический блок детектирования на основе кристалла LaBr3(Ce) с размерами Ø 38×38 мм с нелинейной характеристикой преобразования канал-энергия в диапазоне до 10 МэВ. На спектрах хорошо различимы основные линии захватного излучения от водорода, бора, титана и никеля. По полученным на блоке детектирования спектрам можно сделать вывод о возможности калибровки спектрометрических блоков в поле захватного гамма-излучения до 10 МэВ. </p></abstract><trans-abstract xml:lang="en"><p>Wide spread of technogenic sources of ionizing radiation such as particle accelerators and nuclear reactors leads to appearance of a number of applied metrological tasks aimed at providing spectrometric and dosimetric ionization measurement instruments, located in photon radiation fields with energy to 10 MeV. Gamma rays with energy higher 3 MeV may be acquired using radioactive thermal neutron capture on target, i.e. (n, γ)-nuclear reaction. Titanium is used in the range of energies to 7 MeV; nickel – to 10 MeV. A simplest source of instantaneous neutron capture gamma-ray should consist of fast neutron source, neutron moderator and a target irradiated with thermal neutrons. The collimator with thermal neutron geometry of АТ140 neutron calibration facility with 238Pu–Be fast neutron source may be used (IBN–8–6) as a source of gamma-ray with energy to 10 MeV. Monte-Carlo models of thermal neutrons geometry, facility and 238Pu–Be fast neutron source were built using MCNP–4b code. Energy distribution of flux density of neutron capture gamma–ray for titanium and nickel targets was defined. A spectrometric detector based on LaBr3(Ce) crystal Ø 38×38 mm with non-linear characteristics of channel-energy transformation in the range up to 10 MeV, was specifically manufactured for instrumental support of the experiment at SPE “ATOMTEX”. The results for Ti, Ni, and for bare 238Pu–Be neutron source were acquired. During the experiment a possibility to use neutron capture gamma-ray field formed by thermal neutrons geometry of АТ140 neutron calibration facility with 238Pu–Be-fast neutron source with Ti and Ni targets for calibration LaBr3(Ce) spectrometers for energy to 10 MeV was confirmed. Closely stationing polyethylene plate in collimator channel provides significant increase in output of reference radiation from target simultaneously decreasing unneeded parts of the spectrum. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>захватное гамма-излучение</kwd><kwd>радионуклидный источник нейтронов</kwd><kwd>геометрия тепловых нейтронов</kwd><kwd>мишень из титана</kwd><kwd>мишень из никеля</kwd><kwd>спектрометрический блок детектирования</kwd></kwd-group><kwd-group xml:lang="en"><kwd>neutron capture gamma-ray</kwd><kwd>radionuclide neutron source</kwd><kwd>thermal neutrons geometry</kwd><kwd>titanium target</kwd><kwd>nickel target</kwd><kwd>spectrometric detector</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">Capture Gamma Ray Beam for the Calibration of Radioprotection Dosemeters between 5 and 9 MeV / F. 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