Berg Rodney, Gilhuly Colleen, Korpach Ed, Ungar Kurt
*Health Canada, Radiation Protection Bureau, Ottawa, ON, Canada.
Health Phys. 2016 May;110(5):471-80. doi: 10.1097/HP.0000000000000505.
During the Full-Scale Radiological Dispersal Device (FSRDD) Field Trials carried out in Suffield, Alberta, Canada, several suites of detection equipment and software models were used to measure and characterize the ground deposition. The FSRDD Field Trials were designed to disperse radioactive lanthanum of known activity to better understand such an event. This paper focuses on one means of measuring both concentration and the particle size distribution of the deposition using electrostatic filters placed around the trial site to collect deposited particles for analysis. The measurements made from ground deposition filters provided a basis to guide modeling and validate results by giving insight on how particles are distributed by a plume.
在加拿大艾伯塔省萨菲尔德进行的全尺寸放射性散布装置（FSRDD）实地试验中，使用了几套检测设备和软件模型来测量和表征地面沉积物。FSRDD实地试验旨在散布已知活度的放射性镧，以便更好地了解此类事件。本文重点介绍一种测量沉积物浓度和粒径分布的方法，即使用放置在试验场地周围的静电过滤器收集沉积颗粒进行分析。通过地面沉积过滤器进行的测量为指导建模和验证结果提供了依据，因为它能深入了解羽流如何分布颗粒。
