【摘要】 介绍了废物包装体核素分析装置的原理和探测器的选择 ;利用 γ“穿透法”实验模拟装置 ,测定了 5种介质 (水、土、红砖、水泥和砂子 )的线性减弱系数和质量减弱系数 ;在准直 -圆柱源、非准直 -圆柱源和无准直 -转桶源三种几何条件下研究了介质吸收系数和活度计算方法。更多还原

【Abstract】 The principle of waste drum nuclide analysis system and the principle of the detector chosen are introduced. The linear attenuation coefficient and mass attenuation coefficient of five environmental medium(water , soil, red brick, concrete and sands) have been measured with γ transmission method simulative equipment. The absorption coefficient and nuclide activity of three measuring conditions(collimation columnar source, uncollmation columnar source, and uncollmation rotation drum source) have been calculated.更多还原