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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">10.25205/2541-9447-2022-17-3-5-11</article-id><article-id custom-type="elpub" pub-id-type="custom">nguphys-207</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>Исследование высокочастотного генератора плазмы с многосекундной длительностью работы</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of a Radiofrequency Plasma Generator for Multi-Second Pulse Operation</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>Воинцев</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Vointsev</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вадим Александрович Воинцев, аспирант, инженер-исследователь</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Vadim A.Vointsev, Graduate Student, Researcher-Engineer</p><p>Novosibirsk</p></bio><email xlink:type="simple">v.vointsev@alumni.nsu.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>Гаврисенко</surname><given-names>Д. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrisenko</surname><given-names>D. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Даниил Юрьевич Гаврисенко, магистрант</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Daniil Yu. Gavrisenko, Master Student</p><p>Novosibirsk</p></bio><email xlink:type="simple">d.gavrisenko@g.nsu.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>Кондаков</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kondakov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Анатольевич Кондаков, научный сотрудник</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Alexey A. Kondakov, Researcher</p><p>Novosibirsk</p></bio><email xlink:type="simple">A.A.Kondakov@inp.nsk.su</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5029-3161</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сотников</surname><given-names>О. З.</given-names></name><name name-style="western" xml:lang="en"><surname>Sotnikov</surname><given-names>O. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Олег Захарович Сотников, кандидат физико-математических наук, старший научный сотрудник</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Oleg Z. Sotnikov, Candidate of Physical and Mathematical Sciences, Senior Researcher</p><p>Novosibirsk</p></bio><email xlink:type="simple">Sotnikov@inp.nsk.su</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>Финашин</surname><given-names>Р. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Finashin</surname><given-names>R. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Роман Андреевич Финашин, научный сотрудник, кандидат технических наук</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Roman A. Finashin, Researcher, Candidate of Technical Sciences</p><p>Novosibirsk</p></bio><email xlink:type="simple">romanfinashindoc@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт ядерной физики им. Г. И. Будкера СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Budker Institute of Nuclear Physics SB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>15</day><month>12</month><year>2022</year></pub-date><volume>17</volume><issue>3</issue><fpage>5</fpage><lpage>11</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Воинцев В.А., Гаврисенко Д.Ю., Кондаков А.А., Сотников О.З., Финашин Р.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Воинцев В.А., Гаврисенко Д.Ю., Кондаков А.А., Сотников О.З., Финашин Р.А.</copyright-holder><copyright-holder xml:lang="en">Vointsev V.A., Gavrisenko D.Y., Kondakov A.A., Sotnikov O.Z., Finashin R.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://nguphys.elpub.ru/jour/article/view/207">https://nguphys.elpub.ru/jour/article/view/207</self-uri><abstract><p>Приведены результаты испытаний мощного высокочастотного генератора плазмы, разработанного для инжек­тора высокоэнергетичных атомов. Для работы в многосекундных импульсах в генератор введен охлаждаемый щелевой экран. Описывается стабильная работа генератора в импульсах длительностью 20 секунд при ~38 кВт входной мощности, подаваемой на антенну. Проведены измерения плотности ионного тока плазмы на выходе генератора. Исследован нагрев элементов генератора в течении рабочего импульса. Определены основные фак­торы, влияющие на потерю подаваемой мощности. Снижены потери мощности, вызванные вихревыми токами в кольцевых фланцах.</p></abstract><trans-abstract xml:lang="en"><p>This paper presents the test results of a radiofrequency (RF) plasma generator, developed for neutral beam injectors. A water cooled faraday screen is installed into the generator for multi-second pulse operation. Consistent operation achieved for 20-second long pulses with input power of 38 kW is described. The density of the ion current was measured. The experiments were conducted to measure the density of the ion current at the driver’s output and to evaluate the heating of the driver’s elements. Main factors affecting the power losses were determined. The power loss caused by the eddy currents in the driver’s clamping flanges were reduced.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>высокочастотный генератор плазмы</kwd><kwd>защитный экран</kwd><kwd>инжектор высокоэнергетичных нейтралов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>radiofrequency plasma generator</kwd><kwd>faraday screen</kwd><kwd>neutral beam injectors</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">Ivanov A. A. et al. Radio frequency ion source for plasma diagnostics in magnetic fusion experiments // Rev. Sci. Instrum. 2000. No. 71. Pp. 3728–3735.</mixed-citation><mixed-citation xml:lang="en">Ivanov A. et al. 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