Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
An ionizing radiation shielding material for a medium-energy proton accelerator comprises water containing a hydrogen element, hematite sand and hematite ore containing an iron element, xonotlite containing a boron material, and other concrete components including cement, fly ash and other additives. The hydrogen element in the shielding material is used for slowing down and absorbing neutrons generated by the medium-energy proton accelerator, the hematite sand and the hematite with high iron element proportion can efficiently reduce neutron energy through the non-elastic scattering cross section so as to improve the neutron slowing down and absorbing efficiency of the hydrogen element, the boron material is used for improving the thermal neutron absorbing efficiency. the mass ratio of theiron element to the hydrogen element is adjusted to achieve the optimal mass ratio of the neutron shielding effect, and the mass ratio of the boron element to the heavy concrete is adjusted to achieve the optimal mass ratio of the thermal neutron absorption efficiency. According to the invention, the thickness of the boron-containing hematite heavy concrete is reduced to 50cm from 60cm of commonconcrete, and the effective attenuation under a large-thickness shielding condition is realized.
一种用于中能质子加速器的电离辐射屏蔽材料，包括：含有氢元素的水、含有铁元素的赤铁矿砂和赤铁矿石、含有硼材料的硬硼钙石，以及其他混凝土成份，包括水泥、粉煤灰、其它外加剂；屏蔽材料中的氢元素用于对中能质子加速器产生的中子慢化以及吸收，铁元素占比较高的赤铁矿砂和赤铁矿石通过非弹性散射截面能够高效的降低中子能量来提高氢元素对中子的慢化与吸收效率，硼材料用于提高热中子的吸收效率，铁/氢元素质量比例为调整达到对中子的屏蔽效果最优的质量比例、硼元素/重混凝土的质量比例达为到对热中子的吸收效率最优的质量比例。本发明实现了含硼赤铁矿重混凝土的厚度由普通混凝土的60cm下降到50cm，以及在大厚度屏蔽条件下的有效衰减。
An ionizing radiation shielding material for a medium-energy proton accelerator comprises water containing a hydrogen element, hematite sand and hematite ore containing an iron element, xonotlite containing a boron material, and other concrete components including cement, fly ash and other additives. The hydrogen element in the shielding material is used for slowing down and absorbing neutrons generated by the medium-energy proton accelerator, the hematite sand and the hematite with high iron element proportion can efficiently reduce neutron energy through the non-elastic scattering cross section so as to improve the neutron slowing down and absorbing efficiency of the hydrogen element, the boron material is used for improving the thermal neutron absorbing efficiency. the mass ratio of theiron element to the hydrogen element is adjusted to achieve the optimal mass ratio of the neutron shielding effect, and the mass ratio of the boron element to the heavy concrete is adjusted to achieve the optimal mass ratio of the thermal neutron absorption efficiency. According to the invention, the thickness of the boron-containing hematite heavy concrete is reduced to 50cm from 60cm of commonconcrete, and the effective attenuation under a large-thickness shielding condition is realized.
一种用于中能质子加速器的电离辐射屏蔽材料，包括：含有氢元素的水、含有铁元素的赤铁矿砂和赤铁矿石、含有硼材料的硬硼钙石，以及其他混凝土成份，包括水泥、粉煤灰、其它外加剂；屏蔽材料中的氢元素用于对中能质子加速器产生的中子慢化以及吸收，铁元素占比较高的赤铁矿砂和赤铁矿石通过非弹性散射截面能够高效的降低中子能量来提高氢元素对中子的慢化与吸收效率，硼材料用于提高热中子的吸收效率，铁/氢元素质量比例为调整达到对中子的屏蔽效果最优的质量比例、硼元素/重混凝土的质量比例达为到对热中子的吸收效率最优的质量比例。本发明实现了含硼赤铁矿重混凝土的厚度由普通混凝土的60cm下降到50cm，以及在大厚度屏蔽条件下的有效衰减。
Ionizing radiation shielding material for medium-energy proton accelerator
一种用于中能质子加速器的电离辐射屏蔽材料
WANG FENG (Autor:in)
01.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
POFA-PET Concrete as an Ionizing Radiation Shielding - Preliminary Review
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