Abstract：
This study calculates dose rate in Gy y-1 for individual dust, soil, and sediment particles that contain significant amounts of alpha-emitting uranium or thorium. When inhaled or ingested, these particles deliver radiation dose to organs where they embed. The presented method uses X-ray microscopy to measure alpha emitting elements in environmental microparticles, followed by calculation of dose rates delivered to the targeted volume of tissues that surround embedded microparticles. The example calculations use a real-world, 89% uranium house dust particle.
摘要：
这项研究计算了单个灰尘的Gyy-1剂量率，土壤,和含有大量α-发射铀或钍的沉积物颗粒。吸入或摄入时，这些粒子将辐射剂量传递到它们嵌入的器官。所提出的方法使用X射线显微镜来测量环境微粒中的α发射元素，然后计算递送到围绕嵌入微粒的组织的目标体积的剂量率。示例计算使用真实世界，89%的铀屋粉尘颗粒。
