可替代箱式铅手套的复合橡胶屏蔽材料研究

特定核设施的乏燃料处理过程中,所涉及的主要为低能辐射射线,但如不加以屏蔽还是会对工作人员的健康造成一定的影响。针对这种特殊低能环境,在手套材料中掺入稀土元素Tm和Sm的化合物来达成一定的屏蔽效果和较好的物理性能。结果显示,某些稀土元素对γ射线具有良好的屏蔽效果,且对比传统屏蔽材料铅化学毒性低。并通过实验制出可适用于制作手套箱手套的材料,通过辐射屏蔽实验得出该材料对59.5 keV的能量屏蔽率可达33%~41%,且其他物理性能良好。根据这个结果判断这种材料可以在某些场合对含铅手套做一定的替代且能给相关屏蔽防护用具的设计提供参考。

The spent fuel treatment of specific nuclear facilities mainly involves low-energy radiation,but if it is not shielded,it will still have a certain impact on the health of the staff.In view of this special low-energy environment,the compounds of rare earth elements Tm and Sm are mixed into the glove material to achieve certain shielding effect and better physical properties.The results show that some rare earth elements have a good shielding effect onγ-rays,and the chemical toxicity of lead is lower than that of traditional shielding materials.And the material suitable for making glove box gloves is made through experiments,and the radiation shielding experiment shows that the energy shielding rate of the material to 59.5 keV can reach 33%to 41%,and other physical properties are good.According to this result,we think that this material can replace lead-containing gloves on some occasions and provide a reference for the design of related shielding protective equipment.