Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete material for neutron absorption and shielding and preparation method thereof
The invention relates to a concrete material for neutron absorption and shielding and a preparation method thereof. According to the concrete material for neutron absorption and shielding and the preparation method thereof provided by the invention, europium oxide is used as a material for improving the neutron absorption and shielding effect, so that the neutron absorption and shielding effect of common concrete can be improved. The neutron removal macroscopic cross section of the prepared concrete material for neutron absorption and shielding is 2-3 times that of common concrete; meanwhile, the thickness of the photon semi-attenuation layer of the prepared concrete material for neutron absorption and shielding is reduced by 5-10% compared with that of common concrete. Besides, the main reaction of europium for absorbing neutrons is (n, gamma) reaction, so that helium is not generated and accumulated, and the embrittlement phenomenon is avoided after long-time irradiation.
本发明涉及一种用于中子吸收和屏蔽的混凝土材料及其制备方法。采用本发明所提供的用于中子吸收和屏蔽的混凝土材料及其制备方法，以氧化铕作为增加中子吸收和屏蔽效果的材料，能够提升普通混凝土的中子吸收和屏蔽效果。所制得的用于中子吸收和屏蔽的混凝土材料的中子移除宏观截面为普通混凝土的2～3倍；同时，所制得的用于中子吸收和屏蔽的混凝土材料的光子半衰减层厚度比普通混凝土下降5～10％。此外，铕吸收中子的主要反应为(n,γ)反应，因此不会产生和积累氦气，长时间辐照不会出现脆裂现象。
Concrete material for neutron absorption and shielding and preparation method thereof
The invention relates to a concrete material for neutron absorption and shielding and a preparation method thereof. According to the concrete material for neutron absorption and shielding and the preparation method thereof provided by the invention, europium oxide is used as a material for improving the neutron absorption and shielding effect, so that the neutron absorption and shielding effect of common concrete can be improved. The neutron removal macroscopic cross section of the prepared concrete material for neutron absorption and shielding is 2-3 times that of common concrete; meanwhile, the thickness of the photon semi-attenuation layer of the prepared concrete material for neutron absorption and shielding is reduced by 5-10% compared with that of common concrete. Besides, the main reaction of europium for absorbing neutrons is (n, gamma) reaction, so that helium is not generated and accumulated, and the embrittlement phenomenon is avoided after long-time irradiation.
本发明涉及一种用于中子吸收和屏蔽的混凝土材料及其制备方法。采用本发明所提供的用于中子吸收和屏蔽的混凝土材料及其制备方法，以氧化铕作为增加中子吸收和屏蔽效果的材料，能够提升普通混凝土的中子吸收和屏蔽效果。所制得的用于中子吸收和屏蔽的混凝土材料的中子移除宏观截面为普通混凝土的2～3倍；同时，所制得的用于中子吸收和屏蔽的混凝土材料的光子半衰减层厚度比普通混凝土下降5～10％。此外，铕吸收中子的主要反应为(n,γ)反应，因此不会产生和积累氦气，长时间辐照不会出现脆裂现象。
Concrete material for neutron absorption and shielding and preparation method thereof
一种用于中子吸收和屏蔽的混凝土材料及其制备方法
YI XUAN (Autor:in) / CHEN TIAN (Autor:in) / LI XIANG (Autor:in) / HUO XIAODONG (Autor:in) / SHAO ZENG (Autor:in) / YANG HAIFENG (Autor:in) / XU MIN (Autor:in) / XIAO HUIWEN (Autor:in) / ZHANG HAORAN (Autor:in) / FEI JUNTIAN (Autor:in)
11.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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