熱ルミネッセンス線量計による環境γ線線量の測定及び環境特性

概要

論文の詳細を見る
It is important to evaluate environmental gamma-ray exposure both at work and home in order to assess peoples collective dosages. Environmental gamma radiation was measured for air-absorbed dose with a thermoluminescence dosemeter at various points in the workplace and Ningyoutouge, and workplace radiation characteristics were analysed. From the results, the public dose due to gamma rays generated artificially was assessed to be sufficiently lower than the annual limit. For indoor environments of the workplace, the maximum dosage rate among measured values was 97nGy/h and the minimum value was 70nGy/h, the average over one year was 83nGy/h. The average annual outdoor dosage for a year was 82nGy/h. In Ningyotoge, the maximum was 103nGy/h, minimum 60nGy/h, and average 88nGy/h. These values depend on the nature of the soil and weather factors, showing higher values in the summer than in the winter in the workplace. There was no significant difference in the dosage rate in houses and the workplace.
日本保健物理学会の論文