放射性计量的单位和基准在前二节中已经说明了放射性计量工作的作用和对象。要全面解决放射性计量的问题,首先要建立各种放射性单位的基准,编制和实现向下传递的检定系统。现在谈谈放射性计量有哪些单位,它们的基准(国家基准器或基准方法)是什么,怎样传递。放射性测量工作上发生的两个基本问题 Units and benchmarks for radiometric measurements The roles and targets of radiometric measurements have been described in the previous two sections. To solve the problem of radioactive measurement in an all-round way, we must first establish benchmarks for various radioactive units and formulate and implement a verification system for passing downwards. Now let us talk about the units of radiometric measurement, what are their benchmarks (national benchmarks or benchmarking methods) and how they are delivered. Two basic problems that occur in radiometric work