137Cs γ-ray Radiography
137Csγ線ラジオグラフィ

Shigemasa ENOMOTO, Tomihiko FURUTA, Chizuo MORI
1961 Journal of the Instrument Technology, Japan  
doi:10.11499/sicejl1951.11.141 fatcat:d6cpu6lctzfxlluf2clea7v56i