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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">bsuir</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады БГУИР</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady BGUIR</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1729-7648</issn><issn pub-type="epub">2708-0382</issn><publisher><publisher-name>БГУИР</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.35596/1729-7648-2025-23-3-95-101</article-id><article-id custom-type="elpub" pub-id-type="custom">bsuir-4167</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>Влияние положения болюса на величину дозы ионизирующего излучения при моделировании облучения на линейном ускорителе</article-title><trans-title-group xml:lang="en"><trans-title>Effect of Bolus Position on the Dose of Ionizing Radiation in a Linear Accelerator Simulation</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>Чиркова</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Chirkova</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><sec><title>вед. мед. физик отдела по инженерному обеспечению лучевой терапии; асп.</title></sec></bio><bio xml:lang="en"><sec><title>Chirkova I. N., Leading Medical Physicist, Department of Radiation Therapy Engineering; Postgraduate</title><p> </p></sec></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>Тумилович</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tumilovich</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><sec><title>д-р техн. наук, проф.</title></sec></bio><bio xml:lang="en"><sec><title>Tumilovich M. V., Dr. Sci. (Tech), Professor</title><p> </p></sec></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Республиканский научно-практический центр онкологии и медицинской радиологии имени Н. Н. Александрова; Белорусский государственный университет информатики и радиоэлектроники</institution></aff><aff xml:lang="en"><institution>N. N. Aleksandrov National Cancer Center of Belarus; Belarusian State University of Informatics and Radioelectronics</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусский государственный университет информатики и радиоэлектроники</institution></aff><aff xml:lang="en"><institution>Belarusian State University of Informatics and Radioelectronics</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>15</day><month>07</month><year>2025</year></pub-date><volume>23</volume><issue>3</issue><fpage>95</fpage><lpage>101</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чиркова И.Н., Тумилович М.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Чиркова И.Н., Тумилович М.В.</copyright-holder><copyright-holder xml:lang="en">Chirkova I.N., Tumilovich M.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://doklady.bsuir.by/jour/article/view/4167">https://doklady.bsuir.by/jour/article/view/4167</self-uri><abstract><p>Основная цель лучевой терапии – подведение дозы ионизирующего излучения к опухоли. При облучении очагов, расположенных на поверхности кожи либо на небольшой глубине, возникает проблема переоблучения здоровых тканей. С целью оптимизации распределения дозы ионизирующего излучения в практике лечения используются вспомогательные устройства в виде болюсов. При этом важное значение имеет корректная фиксация болюса, обеспечивающая его плотное прилегание. Экспериментально доказано повышение качества дозового распределения при плотной фиксации болюса. Получены численные значения дозы в контрольной точке при различной плотности прилегания болюса с применением разных методик расчета планов облучения. </p></abstract><trans-abstract xml:lang="en"><p>The main goal of radiation therapy is to deliver a dose of ionizing radiation to a tumor. When irradiating foci located on the skin surface or at a shallow depth, the problem of overirradiation of healthy tissues arises. In order to optimize the distribution of the dose of ionizing radiation, auxiliary devices in the form of boluses are used in treatment practice. In this case, correct fixation of the bolus, ensuring its tight fit, is of great importance. An increase in the quality of dose distribution with tight fixation of the bolus has been experimentally proven. Numerical values of the dose at the control point with different bolus fit density have been obtained using different methods for calculating irradiation plans.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лучевая терапия</kwd><kwd>мастэктомия</kwd><kwd>болюс</kwd><kwd>дозовое распределение</kwd><kwd>ионизирующее излучение</kwd><kwd>неопределенность</kwd><kwd>фантом</kwd><kwd>компьютерный томограф</kwd><kwd>радиационный пучок</kwd></kwd-group><kwd-group xml:lang="en"><kwd>radiation therapy</kwd><kwd>mastectomy</kwd><kwd>bolus</kwd><kwd>dose distribution</kwd><kwd>ionizing radiation</kwd><kwd>uncertainty</kwd><kwd>phantom</kwd><kwd>computed tomograph</kwd><kwd>radiation beam.</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">Ратнер, Т. Г. Клиническая дозиметрия. Физико-технические основы / Т. Г. Ратнер, И. М. Лебеденко, 2-е изд. 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