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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">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">zhps-830</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>Гониофотометр для измерения коэффициентов спектральной яркости и спектров пропускания</article-title><trans-title-group xml:lang="en"><trans-title>Goniophotometer for Measurements of Spectral Reflectance Coefficients and Transmission Spectra</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>Бручковский</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Bruchkouski</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220045, Минск</p></bio><bio xml:lang="en"><p>Minsk, 220045</p></bio><email xlink:type="simple">bruchkovsky2010@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>Силюк</surname><given-names>О. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Siliuk</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220045, Минск</p></bio><bio xml:lang="en"><p>Minsk, 220045</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>Литвинович</surname><given-names>Г. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Litvinovich</surname><given-names>H. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220045, Минск</p></bio><bio xml:lang="en"><p>Minsk, 220045</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>Ломако</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lamaka</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220045, Минск</p></bio><bio xml:lang="en"><p>Minsk, 220045</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>Станчик</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Stanchyk</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220045, Минск</p></bio><bio xml:lang="en"><p>Minsk, 220045</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>Гуляева</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Guliaeva</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220045, Минск</p></bio><bio xml:lang="en"><p>Minsk, 220045</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт прикладных физических проблем им. А. Н. Севченко, Белорусский государственный университет</institution></aff><aff xml:lang="en"><institution>A.N. Sevchenko Institute for Applied Physical Problems, Belarusian State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>29</day><month>05</month><year>2021</year></pub-date><volume>88</volume><issue>2</issue><fpage>303</fpage><lpage>310</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бручковский И.И., Силюк О.О., Литвинович Г.С., Ломако А.А., Станчик В.В., Гуляева С.И., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Бручковский И.И., Силюк О.О., Литвинович Г.С., Ломако А.А., Станчик В.В., Гуляева С.И.</copyright-holder><copyright-holder xml:lang="en">Bruchkouski I.I., Siliuk V.A., Litvinovich H.S., Lamaka A.A., Stanchyk V.V., Guliaeva S.I.</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://zhps.ejournal.by/jour/article/view/830">https://zhps.ejournal.by/jour/article/view/830</self-uri><abstract><p>Описана конструкция автоматизированного лабораторного гониофотометра CHERRY (CHlorophyll Estimation and Reflectance Registration sYstem), предназначенного для измерений коэффициентов спектральной яркости (КСЯ(λ)) хвои в диапазоне 400—2500 нм и количественного анализа содержания цветных пигментов в хвое в диапазоне 400—700 нм. Гониофотометр CHERRY позволяет проводить измерения двух типов: гониометрические, при которых измеряется КСЯ(λ) излучения, отраженного от исследуемого образца в вертикальном направлении, и фотометрические, при которых измеряется коэффициент пропускания прямого излучения, прошедшего через кювету с раствором пигментов. Результаты измерений КСЯ(λ) еловой хвои Picea abies в области 400—700 нм показывают различия до 15 % при использовании протяженного и квазипараллельного источников. Вегетационный индекс Vog2 для здоровой хвои варьируется от -0.45 до -0.34 при различных способах размещения образца и от -0.42 до -0.39 при разных ориентациях поляроида для выбранного способа размещения образца. Влияние лабораторного источника излучения на КСЯ(λ) хвои в диапазоне 470—770 нм подтверждает относительное отклонение измеряемых КСЯ(λ) до 5 % за 2 ч измерений. Количественные измерения показывают, что в образце здоровой хвои исследуемых пигментов содержится на 30 % больше, чем в образце хвои дерева в состоянии стресса.</p></abstract><trans-abstract xml:lang="en"><p>We describe the design of an automated laboratory goniophotometer CHERRY (Chlorophyll Estimation and Reflectance Registration sYstem) intended for measuring the spectral reflectance coefficients of coniferous needles in the spectral range 400-2500 nm and the quantitative analysis of the content of colored pigments in needles in the spectral range 400-700 nm. The CHERRY goniophotometer permits to carry out two types of measurements: goniometric ones, in which the spectral reflectance is measured from the test sample in the vertical direction, as well as photometric ones, in which the transmittance of the direct radiation passed through a cuvette with a pigment solution is measured. The spectral reflectance measurements of spruce needles (Picea abies) in the spectral range 400-700 nm showed differences up to 15 % by employing extended or quasi-parallel sources. The vegetation index Vog2 for healthy needles is varied from -0.45 to -0.34 for different types of the sample location and from -0.42 to -0.39 for different orientations of the polarizer for the selected way of placing the sample. A relative deviation of the measured spectral reflectance in the spectral range 470-770 nm up to 5 % for 2 hours of measurements confirms the influence of the lab radiation source on the spectral reflectance of the needles. Quantitative measurements show that the sample of healthy needles contains 30 % more of the studied pigments than the sample of needles from a tree in a state of stress.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гониофотометр</kwd><kwd>коэффициент спектральной яркости</kwd><kwd>лабораторные измерения оптических параметров хвойных</kwd></kwd-group><kwd-group xml:lang="en"><kwd>goniophotometer</kwd><kwd>spectral reflectance function</kwd><kwd>laboratory measurements of optical parameters of conifers</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">A. Richardson, G. Berlyn, S. Duigan. Tree Physiology, 23 (2003) 537—544</mixed-citation><mixed-citation xml:lang="en">A. Richardson, G. Berlyn, S. Duigan. Tree Physiology, 23 (2003) 537—544</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Е. 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