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      Protactinium-231 as a new fissionable material for nuclear reactors that can produce nuclear fuel with stable neutron-multiplying properties Translated title: Protaktinium-231 als ein neuer Spaltstoff für Kernreaktoren der Kernbrennstoff mit stabilen Neutronenmultiplikationseigenschaften erzeugen kann

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      1 , 2 , 3 , * , , 4
      Kerntechnik
      Carl Hanser Verlag

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          Abstract

          Main purpose of the study is justifying doping of protactinium-231 into fuel compositions of advanced nuclear reactors with the ultimate aim to improve their operation safety and economic efficiency. Protactinium-231 could be generated in thorium blankets of hybrid thermonuclear facilities. The following results were obtained: 1. Protactinium-231 has some favorable features for its doping into nuclear fuel; 2. Protactinium containing fuel compositions can be characterized by the higher values of fuel burn-up, the longer values of fuel lifetime and the better proliferation resistance; 3. as protactinium-231 is the stronger neutron absorber than uranium-238, remarkably lower amounts of protactinium-231 may be doped into fuel compositions. The free space could be occupied by materials which are able to improve heat conductivity and refractoriness of fuel. As a consequence, operation safety of nuclear reactors could be upgraded.

          Kurzfassung

          Hauptziel der Studie ist die Rechtfertigung des Einbringens von Protaktinium-231 in die Brennstoffzusammensetzung zukünftiger Kernreaktoren um so deren Betriebssicherheit und Wirtschaftlichkeit zu verbessern. Protaktinium-231 könnte im Thorium-Mantel von Fusions-Spalt-Hybridreaktoren erzeugt werden. Folgende Ergebnisse wurden erhalten: 1. Protaktinium-231 hat einige günstige Eigenschaften in Bezug auf sein Einbringen in den Kernbrennstoff. 2. Kernbrennstoff der Protaktinium enthält wird durch höheren Abbrand, längere Benutzungszeit im Kernreaktor und bessere Proliferationsresistenz charakterisiert; 3. Da Protaktinium-231 ein stärkerer Neutronenabsorber als Uran-238 ist, könnten deutlich geringere Mengen von Protaktinium-231 in den Kernbrennstoff eingebracht werden. Der Freiraum könnte mit solchen Materialien besetzt werden, die Wärmeleitfähigkeit und Feuerfestigkeit des Kernbrennstoffs verbessern. Als Folge davon würde sich die Sicherheit von Kernreaktoren verbessern.

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          Most cited references6

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          Reaction Rate Calculations in Uranium and Thorium Blankets Surrounding a Central Deuterium-Tritium Neutron Source

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            Sovremenniy vzglyad na gibridniy termoyaderniy reactor

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              Gibridniy reaktor SINTEZ-DELENIE s torieviym blanketom. O ego potentciale v toplivnom tcikle yadernikh reaktorov

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                Author and article information

                Journal
                kt
                Kerntechnik
                Carl Hanser Verlag
                0932-3902
                2195-8580
                16 March 2016
                : 81
                : 1
                : 34-37
                Affiliations
                1 National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409, Russia, Moscow, Kashirskoe Highway, 31. E-mail: shmelan@ 123456mail.ru
                2 National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409, Russia, Moscow, Kashirskoe Highway, 31. E-mail: ggkulikov@ 123456mephi.ru
                3 National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409, Russia, Moscow, Kashirskoe Highway, 31.
                4 National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409, Russia, Moscow, Kashirskoe Highway, 31. E-mail: apseva@ 123456mail.ru
                Author notes
                [* ] Corresponding author: E-mail: egkulikov@ 123456mephi.ru
                Article
                KT110598
                10.3139/124.110598
                a842bbe1-1226-4937-bf38-92ddd45d294c
                © 2016, Carl Hanser Verlag, München
                History
                : 26 December 2015
                Page count
                References: 13, Pages: 4
                Categories
                Technical Contributions/Fachbeiträge

                Materials technology,Materials for energy,Nuclear physics
                Materials technology, Materials for energy, Nuclear physics

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