【摘要】 文章介绍了本实验室用于校准测量环境剂量仪表的参考辐射、不同位置替代法及所涉及的一些问题。结果表明,在考虑了空气吸收和散射辐射影响后,用这种参考辐射和方法校准测量环境X,Υ剂量仪表总不确定度,对于低能光子（<300keV）为±2.5%,对于¹³⁷Cs和⁶⁰Co的Υ射线为±15%。更多还原

【Abstract】 The reference radiation and procedure for calibration of environmental dosimeters in this laboratory are presented. The total uncerntainty of conventional dose value given by MCD-100 type ionization chamber, with air-attenuation and backscattering corrected, is unlikely more than ±2.5% for filtered X-ray, ±1.5% for ¹³⁷Cs and ⁶⁰Co γ -radiation respectively.更多还原