作　　者： ; ; ; ; (尹朝晖）;

机构地区： 广州大学环境科学与工程学院

出　　处： 《广州大学学报（自然科学版）》 2006年第6期60-64,共5页

摘　　要： 分析广州市花岗岩、基岩和常用建筑材料的天然放射性核素比活度.用γ谱仪测量样品中232Th2、26Ra和40K的放射性比活度.结果表明,不同产地的花岗岩石材样品中,天然放射性核素的比活度比普通建筑材料高;基岩中花岗岩放射性水平最高,常用建筑材料中以粉煤灰的放射性核素含量最高. To analyze the specific activities of radionuclides in granites, bedrocks and general building materials in Guangzhou. The specific activities of ^226Ra, ^232Th and ^40K were measured by γ ray spectrometer. The activities of natural radionuclides in granites from different areas were significantly higher than the general building materials. The radioaetivity level was the highest in granites in rocks, fly ash was also the highest in the general building materials.

关 键 词： 建筑材料 天然放射性 花岗岩 放射性比活度

领　　域： [环境科学与工程]