GLASS COMPOSITION, NEUTRON-ABSORBING MATERIAL COMPRISING SAME, METHOD FOR MANAGING MOLTEN FUEL, METHOD FOR TAKING OUT MOLTEN FUEL, AND METHOD FOR STOPPING NUCLEAR REACTOR

The purpose of the present invention is to provide a neutron-absorbing material which has high neutron absorption performance, is less apt to suffer structural degradation caused by irradiation with neutrons or γ rays, and has satisfactory water resistance. The glass composition according to the pre...

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Bibliographische Detailangaben
Hauptverfasser:	AOYAGI, Takuya, NAITO, Takashi, MIYAKE, Tatsuya, IMAMURA, Shin, KANEKO, Hiroki
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:	The purpose of the present invention is to provide a neutron-absorbing material which has high neutron absorption performance, is less apt to suffer structural degradation caused by irradiation with neutrons or γ rays, and has satisfactory water resistance. The glass composition according to the present invention is characterized by containing Gd2O3, B2O3, CeO2, and Bi2O3 when the components are expressed in terms of oxide, the total amount of Gd2O3 and B2O3 being 65 mol % or greater in terms of oxide amount.