X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - calibration of area and personal dosemeters and the measurement of their response as a function of energy and angle of incidence 校准剂量仪和剂量率仪及确定其光子能量响应的x和标准辐射.第3部分:场所剂量仪和个人剂量仪的校准及其能量响应和角响应的确定