实用量的最新进展及其影响

随着更多类型、更宽能量范围辐射的应用，现行实用量由于存在一些概念缺陷，其适用范围严重受限，为此国际辐射单位和测量委员会（ICRU）提出了新的实用量。新实用量在概念上和物理学意义上，均实现了与辐射防护量的统一。但是，这些新的实用量要在我国实现全面应用，还需要做好计算模型构建和监测设备校准系统内置等前期准备工作，这有赖于多方协同致力发展。

Latest development of operational quantities and their impact

With the utilization of more types of radiation with a wider energy range, the application scope of the currently valid operational quantities is limited due to some conceptual defects, so a new group of operational quantities was proposed recently by the International Commission on Radiation Units and Measurements. The unification of protection quantities and operational ones is achieved in conceptual and physical sense. However, to achieve the comprehensive application of these new operational quantities in China, such preliminary work should be done as computational model construction and built-in of a calibration system in monitoring equipment, which depends on the collaborative development of multi-parties.