Surface contamination was quantified over a distributed source of activated potassium bromide from three detonations of Radiological Dispersal Devices (RDDs) at the Idaho National Laboratory Radiological Response Training Range, with a maximum sampled area of 19,900 m2, to provide a baseline comparison with other rapid, remote mapping methods. Measurements were obtained with a cerium bromide sensor collimated to a field of view of 3.14 m2, using lead shielding, and towed behind a ground vehicle. Sensor response correction factors for activated potassium bromide were calculated through simulation with SWORD to obtain activity per meter-squared. Continuous maps were produced by interpolating coverage from lawnmower raster scans. Radiological data was overlaid with aerial imagery from an automated unmanned aerial vehicle flight to provide contextual geological information relative to contamination levels. The contamination distribution measurements will be compared to unmanned aerial vehicle methods in future work.

中文翻译：

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使用准直车辆传感器同时激活溴化钾放射散布装置进行污染测量。

对来自爱达荷国家实验室放射反应训练场的三个放射散布装置 (RDD) 爆炸的活化溴化钾分布式源的表面污染进行了量化，最大采样面积为 19,900 平方米，以提供与其他快速、远程测绘方法。使用溴化铈传感器进行测量，该传感器准直至 3.14 m2 的视场，使用铅屏蔽，并拖在地面车辆后面。通过SWORD模拟计算活化溴化钾的传感器响应校正因子，以获得每平方米的活性。通过对割草机光栅扫描的覆盖范围进行插值来生成连续地图。放射学数据与自动无人机飞行的航空图像叠加，以提供与污染水平相关的背景地质信息。在未来的工作中，污染分布测量将与无人机方法进行比较。