DIN 54113-3:1995 无损检验 使用1MV及以下X射线设备的辐射防护规则 第3部分:450kV及以下X射线设备的辐射防护计算公式和图示
Non-destructive testing - Radiation protection rules for the technical application of X-ray equipment up to 1 MV - Part 3: Formulas and diagrams for the calculation of radiation protection for X-ray equipment up to 450 kV