放射能分析建屋内への放射性セシウムの混入状況及び混入低減策
Survey and countermeasures on radiocesium inflow into a laboratory building for radioactivity analysis

Yoshiyuki KURITA, Jun SAEGUSA, Satoshi MAEDA
2016 Japanese Journal of Radiation Safety Management  
In 2012, JAEA has established a laboratory in Fukushima-city to implement radioactivity analysis of environmental samples. Key nuclides measured in this laboratory are 134 Cs and 137 Cs (radiocesium). For the purpose, situation of radiocesium in‰ow into the laboratory building and its eŠects on the analyses were investigated based on the gammaspectrometry with germanium detectors. As a result, the surface densities of radiocesium in the laboratory was found to be far below the minimum
more » ... activities of survey instruments routinely used for the radiation control purposes.
doi:10.11269/jjrsm.15.180 fatcat:6tdsqjgddvccxaogytrhakkipa