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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Infocommunications and Radio Technologies</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Infocommunications and Radio Technologies</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ИНФОКОММУНИКАЦИОННЫЕ И РАДИОЭЛЕКТРОННЫЕ ТЕХНОЛОГИИ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2587-9936</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">53380</article-id>
   <article-id pub-id-type="doi">10.29039/2587-9936.2022.05.3.24</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Электроника, фотоника, приборостроение и связь (2.2)</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>ELECTRONICS, PHOTONICS, INSTRUMENTATION AND COMMUNICATIONS (2.2)</subject>
    </subj-group>
    <subj-group>
     <subject>Электроника, фотоника, приборостроение и связь (2.2)</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Experimental Studies of the Characteristics  of Photocatodes of the Ultraviolet Range  of the Spectrum</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Экспериментальные исследования  характеристик фотокатодов  ультрафиолетового диапазона спектра</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Пхайко</surname>
       <given-names>Николай Анатольевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Pkhaiko</surname>
       <given-names>Nikolai A.</given-names>
      </name>
     </name-alternatives>
     <email>dep5@vniitf.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Кондратьев</surname>
       <given-names>Александр Александрович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Kondratyev</surname>
       <given-names>Alexander A.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Пахомов</surname>
       <given-names>Сергей Николаевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Pakhomov</surname>
       <given-names>Sergey N.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Потапов</surname>
       <given-names>Анатолий Васильевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Potapov</surname>
       <given-names>Anatoly V.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Сорокин</surname>
       <given-names>Илья Александрович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Sorokin</surname>
       <given-names>Ilya A.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Тищенко</surname>
       <given-names>Александр Станиславович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Tishchenko</surname>
       <given-names>Alexander S.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Российский Федеральный Ядерный Центр —  ВНИИ технической физики им. академ. Е. И. Забабахина</institution>
     <city>Снежинск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Russian Federal Nuclear Center — Zababakhin All-Russia Research Institute of technical Physics</institution>
     <city>Snezhinsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Российский Федеральный Ядерный Центр —  ВНИИ технической физики им. академ. Е. И. Забабахина</institution>
     <city>Снежинск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Russian Federal Nuclear Center — Zababakhin All-Russia Research Institute of technical Physics</institution>
     <city>Snezhinsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Российский Федеральный Ядерный Центр —  ВНИИ технической физики им. академ. Е. И. Забабахина</institution>
     <city>Снежинск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Russian Federal Nuclear Center — Zababakhin All-Russia Research Institute of technical Physics</institution>
     <city>Snezhinsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Российский Федеральный Ядерный Центр —  ВНИИ технической физики им. академ. Е. И. Забабахина</institution>
     <city>Снежинск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Russian Federal Nuclear Center — Zababakhin All-Russia Research Institute of technical Physics</institution>
     <city>Snezhinsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Российский Федеральный Ядерный Центр —  ВНИИ технической физики им. академ. Е. И. Забабахина</institution>
     <city>Снежинск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Russian Federal Nuclear Center — Zababakhin All-Russia Research Institute of technical Physics</institution>
     <city>Snezhinsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Российский Федеральный Ядерный Центр —  ВНИИ технической физики им. академ. Е. И. Забабахина</institution>
     <city>Снежинск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Russian Federal Nuclear Center — Zababakhin All-Russia Research Institute of technical Physics</institution>
     <city>Snezhinsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2022-09-28T20:22:29+03:00">
    <day>28</day>
    <month>09</month>
    <year>2022</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2022-09-28T20:22:29+03:00">
    <day>28</day>
    <month>09</month>
    <year>2022</year>
   </pub-date>
   <volume>5</volume>
   <issue>3</issue>
   <fpage>325</fpage>
   <lpage>341</lpage>
   <history>
    <date date-type="received" iso-8601-date="2022-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2022</year>
    </date>
    <date date-type="accepted" iso-8601-date="2022-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2022</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/53380/view">https://rusjbpc.ru/en/nauka/article/53380/view</self-uri>
   <abstract xml:lang="ru">
    <p>Фотоэмиссионные элементы с высокой чувствительностью к квантам ультрафиолетового (УФ) диапазона спектра имеют большой круг практических применений в ускорительной технике и генераторах сверхкоротких электромагнитных импульсов СВЧ-диапазона. Потенциальные выгоды применения УФ фотокатодов в данных областях техники определяются таким сочетанием их свойств, как высокая электропрочность и большой квантовый выход. В докладе приведены результаты экспериментальных исследований характеристик фотокатодов на основе магний-бариевых (Mg-Ba) сплавов и иодида цезия (CsJ). Фотокатоды изготавливались методом термического вакуумного распыления на полированные подложки из нержавеющей стали. Впервые показано, что электрическая прочность вакуумных промежутков с УФ катодами существенно выше, чем с сурьмяно-цезиевыми катодами видимого диапазона спектра (для CsJ катодов — в 2,5 раза, для Mg-Ba катодов — более, чем в три раза). Квантовая эффективность Mg-Ba катодов составляет ~1 % на длине волны 247 нм, CsJ катодов — 7,5 % на длине волны 196 нм. Впервые приведены результаты исследований динамики снижения квантовой эффективности фотокатодов при импульсно-периодическом облучении их лазерными импульсами с флюенсом ~6 мкДж/см2. Проведено сравнение характеристик фотокатодов с точки зрения их практических применений.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Photoemission cells with high sensitivity to photons in the ultraviolet (UV) range of the spectrum have a wide range of practical applications in accelerator technology and generators of ultrashort electromagnetic pulses in the microwave range.  The potential benefits of using UV photocathodes in these areas of technology are determined by such a combination of their properties as high electrical strength and high quantum efficiency. The report presents the results of experimental studies of the characteristics of photocathodes based on magnesium-barium (Mg-Ba) alloys and cesium iodide (CsJ).  Photocathodes were fabricated by thermal vacuum sputtering on polished stainless steel substrates. It is shown that the dielectric strength of vacuum gaps with UV cathodes is significantly higher than with antimony-cesium cathodes in the visible range of the spectrum (for CsJ cathodes – 2.5 times, for Mg-Ba cathodes – more than three times). The quantum efficiency of Mg-Ba cathodes is ~1% at a wavelength of 247 nm, and that of CsJ cathodes is 7.5% at a wavelength of 196 nm.  The results of studies of the dynamics of a decrease in the quantum efficiency of photocathodes under repetitively pulsed irradiation with laser pulses with a fluence 6 μJ/cm2. The characteristics of photocathodes are compared from the point of view of their practical applications.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>фотоэмиссионные элементы</kwd>
    <kwd>генераторы сверхкоротких электромагнитных импульсов</kwd>
    <kwd>магний-бариевый сплав</kwd>
    <kwd>иодид цезия</kwd>
    <kwd>термическое вакуумное распыление</kwd>
    <kwd>электрическая прочность</kwd>
    <kwd>квантовая эффективность</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>photoemissive elements</kwd>
    <kwd>generators of ultrashort electromagnetic pulses</kwd>
    <kwd>magnesium-barium alloy</kwd>
    <kwd>cesium iodide</kwd>
    <kwd>thermal vacuum sputtering</kwd>
    <kwd>electrical strength</kwd>
    <kwd>quantum efficiency</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
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