Activity of Personal Protective Gear Worn by Workers Near Fukushima: Approximating Personal Exposure to Radioactive Cesium In and Near the Fukushima Exclusion ZonePublic
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This study examines the activity of Cesium 137 radiation in air filters and Personal Protective Gear (PPG) worn by remediation workers in and near the Fukushima exclusion zone. Activity is evaluated after radioactive decays are counted using a Broad-Energy Germanium (BEGe) detector, over a constant period of time for each PPG sample. We then use these activity results to calculate the average activity of PPG by region of the body, and display the average Cs-137 activity levels according to the regions of the body with which they are associated. We then approximate the Cs-137 dose to which a remediation worker would be exposed over the course of a year, based on the PPG examined. We observe that the highest Cs-137 activity was found in outer-coverings for hands and feet.
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