近年来,人们一直在用低能X线辐射来研究不同于铅和混凝土的一些材料的屏蔽特性,然而,尚未见有关大理石衰减曲线的报道。大理石主要由占40%钙元素的碳酸钙和数量不稳定又很少量的一些其它元素组成,由于大理石含钙(Z=20)量很高,所以它的有效原子序数超过了混凝土和其它含高硅成份(Z=14)的砖石建筑材料。用大理石做X线诊断室室内的墙壁一般不需要其它涂饰,大理石辐射衰减性强、经久耐用、外观美丽,用它做建筑材料是一种相对价值很高的物质。 In recent years, people have been using low-energy X-ray radiation to study the shielding characteristics of some materials different from lead and concrete. However, there is no report on the decay curve of marble. Marble is mainly composed of calcium carbonate, which accounts for 40% of calcium, and some other elements that are not stable in quantity and quantity. Due to the high content of calcium (Z=20) in marble, its effective atomic number exceeds that of concrete and others. High-silicon (Z=14) masonry building materials. The use of marble as the X-ray diagnostic room interior walls generally do not require other finishes, marble radiation attenuation, durability, beautiful appearance, use it as a building material is a relatively high value of the material.