含硼分子量聚乙烯板a计量院含硼分子量聚乙烯板加工件

含硼分子量聚乙烯板、含硼聚乙烯板具有-的加工性能、中子射线屏蔽性能、耐辐射和耐老化性能，产品成功用于核电站乏燃料格板、核动力船舶、核对中子辐射、中石油、---、中科院、研究院、医院以及核---的控制棒材及核屏蔽材料等研究领域，更是作为屏蔽中子，射线，辐射屏蔽吸收的*材料。

boron containing ultra-high molecular weight polyethylene uhmwpe sheet&boron containing polyethylene sheet have good processing performance, neutron shielding performance, radiation resistance&aging resistance. the products have been successfully used in nuclear power plant spent fuel grid, nuclear power ship, check neutron radiation, petrochina, military, chinese academy of sciences, research institutes, hospitals&nuclear reactor control rods&nuclear shielding materials it is used as a shielding material for shielding neutrons, rays&radiation.

含硼聚乙烯板在同等厚度下屏蔽252cf源中子的效率更高。含硼聚乙烯板厚度大于20cm以上时，屏蔽两种中子源中子的屏蔽效率逐渐趋于一致，这是因为中子辐射在物质中的减弱遵从指数衰减规律所致。研究结果表明，该含硼聚乙烯板在厚度为3．2～22．4cm之间，对241am－be中子源的屏蔽效率在47．7%～97．7%范围内，对252cf中子源的屏蔽效率在60%～98．2%范围内。通常选择10～20cm厚度的5%含硼聚乙烯板屏蔽快中子可以达到令人满意的防护效果。