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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">mrisel</journal-id><journal-title-group><journal-title xml:lang="en">Magnetic Resonance in Solids</journal-title><trans-title-group xml:lang="ru"><trans-title>Magnetic Resonance in Solids</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2072-5981</issn><publisher><publisher-name>Kazan Federal University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26907/mrsej-25309</article-id><article-id custom-type="elpub" pub-id-type="custom">mrisel-294</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>Low-field 129Xe NMR of liquid Xenon near the triple point: experimental design, relaxation measurements, and preliminary applications to porous media</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Sannikov</surname><given-names>K. O.</given-names></name></name-alternatives><bio xml:lang="en"><p>Kazan 420008</p></bio><email xlink:type="simple">KirOSannikov@kpfu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Klochkov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="en"><p>Kazan 420008</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Institute of Physics, Kazan Federal University</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2025</year></pub-date><volume>27</volume><issue>3</issue><elocation-id>25309 (10 pp.)</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Sannikov K.O., Klochkov A.V., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Sannikov K.O., Klochkov A.V.</copyright-holder><copyright-holder xml:lang="en">Sannikov K.O., Klochkov A.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://www.mrsej.ru/jour/article/view/294">https://www.mrsej.ru/jour/article/view/294</self-uri><abstract><p>In this article, the capabilities of using low-field NMR of liquid 129Xe near triple point in the study of porous media were demonstrated. The possibility of detecting the NMR signal of Xenon with natural isotopic composition and Boltzmann equilibrium spin polarization in the liquid and solid phases was explored. The problems encountered during the planning and conducting the experiments, along with their solutions, are presented. Key issues included low sensitivity, particularly in magnetic fields up to 1T; difficulties in filling the experimental cell with liquid Xenon; the critical need to control the temperature gradient along the NMR probe axis and prevent capillary blockage; control of the solid-to-liquid transition; RF-noise from the electrical leads. As a result, spin-lattice relaxation times (T1) of bulk Xenon were measured and the spin-spin relaxation times (T2) of bulk Xenon were estimated. Some of preliminary results on 129Xe NMR in porous media are presented.</p></abstract><kwd-group xml:lang="en"><kwd>NMR</kwd><kwd>Xenon</kwd><kwd>129Xe</kwd><kwd>low temperatures</kwd><kwd>porous media</kwd><kwd>phase transition</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was financially supported by the subsidy of Ministry of Science and Higher Education of the Russian Federation to Kazan Federal University (FZSM-2023-0012).</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">Boventi M., Mauri M., Simonutti R. Applied Sciences 12, 3152 (2022).</mixed-citation><mixed-citation xml:lang="en">Boventi M., Mauri M., Simonutti R. 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