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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/S2079562922030307</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-271</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>Инженерное проектирование ядерно-физической аппаратуры</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Engineering Design of Nuclear Physical Equipment</subject></subj-group></article-categories><title-group><article-title>Разработка источника холодных нейтронов высокой яркости для канала ГЭК-2 реактора пик</article-title><trans-title-group xml:lang="en"><trans-title>High Brilliance Cold Neutron Source Development for HEC-2 Channel of Reactor PIK</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>Митюхляев</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mityukhlyaev</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гатчина, Ленинградская область, 188300</p></bio><bio xml:lang="en"><p>Gatchina, Leningrad oblast, 188300</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>Онегинa</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Onegin</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гатчина, Ленинградская область, 188300</p></bio><bio xml:lang="en"><p>Gatchina, Leningrad oblast, 188300</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Петербургский институт ядерной физики им. Б.П. Константинова Национального исследовательского центра “Курчатовский институт”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Petersburg Nuclear Physics Institute, Nuclear Research Centre “Kurchatov Institute”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>04</day><month>05</month><year>2024</year></pub-date><volume>13</volume><issue>4</issue><fpage>351</fpage><lpage>357</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Митюхляев В.А., Онегинa М.С., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Митюхляев В.А., Онегинa М.С.</copyright-holder><copyright-holder xml:lang="en">Mityukhlyaev V.A., Onegin M.S.</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/271">https://npe.elpub.ru/jour/article/view/271</self-uri><abstract><p>Рассматривается жидкодейтериевый источник холодных нейтронов для канала ГЭК-2 реактора ПИК. Проведено сравнение двух вариантов расположения камеры источника в отражателе реактора по отношению к центру активной зоны. Показано, что при приближении камеры к центру активной зоны резко растет энерговыделение в ней. При этом яркость источника растет слабее. Продемонстрирована существенная роль вытеснителя при использовании дейтериевой камеры большого объема. Рассчитана яркость источника для двух вариантов расположения его в отражателе, а также энерговыделение в камере источника и подводящих трубах. Источник с энерговыделением 10 кВт во внутриканальной вставке может иметь рекордную яркость по сравнению с другими ИХН на реакторах в мире.</p></abstract><trans-abstract xml:lang="en"><p>Cold neutron source with liquid deuterium moderator for the HEC-2 channel of PIK reactor is considered. Two variants of moderator chamber location in the reactor reflector are compared. It is shown, that the energy release in the chamber strongly increases when it approaches the reactor core. At the same time, the brilliance of the source increases only moderately. The great influence of the displacer in the liquid deuterium chamber of large volume is demonstrated. Cold neutron source brilliance for two positions of the chamber in the reflector is calculated as well as energy release in the chamber and supplying tubes. The cold neutron source with total heat release in the in-pile constructions about 10 kW can reach the record brilliance compared to brilliance of other cold neutron sources in the world.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>источник холодных нейтронов</kwd><kwd>яркость нейтронного источника</kwd><kwd>реактор ПИК</kwd><kwd>жидкий дейтерий</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cold neutron source</kwd><kwd>neutron source brilliance</kwd><kwd>PIK reactor</kwd><kwd>liquid deuterium</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы благодарят Ю. Калзавара (Y. Calzavara) (ИЛЛ, Гренобль), любезно предоставившего компьютерную модель реактора в ИЛЛ.</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">Erykalov A.N., Kolesnichenko O.A., Konoplev K.A., Nazarenko V.A. et al. // Preprint PNPI No. 1784. 1992. Gatchina: PNPI.</mixed-citation><mixed-citation xml:lang="en">Erykalov A.N., Kolesnichenko O.A., Konoplev K.A., Nazarenko V.A. et al. // Preprint PNPI No. 1784. 1992. Gatchina: PNPI.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Mezei F., Zanini L., Takibaev A., Batkov K., et al. // J. Neutron Res. 2014. V. 17. P. 101.</mixed-citation><mixed-citation xml:lang="en">Mezei F., Zanini L., Takibaev A., Batkov K., et al. // J. Neutron Res. 2014. V. 17. 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