GB/T 12162.1-2000
用于校准剂量仪和剂量率仪及确定其能量响应的X和γ参考辐射 第1部分;辐射特性及产生方法
X and gamma reference radiation for calibrating dose-meters and doserate meters and for determining their response as a function of photon energy Part 1:Radiation characteristics and production methods
GBT12162.1-2000, GB12162.1-2000