NEN 11017-1 : 1991

Applies to portable, transportable or installed assemblies intended to measure environmental air kerma rates due to X or gamma radiation of energy between at least 50 keV and 1.5 MeV. If the assembly is to be used to measure air kerma rates in the area surrounding a nuclear reactor producing 6 MeV radiation it will be necessary to determine the response at this energy. For the purpose of radiation protection these assemblies comprise at least: - a detection sub-assembly - a measuring sub-assembly including a display device, which may be connected together either rigidly or by means of a flexible cable or incorporated into a single assembly.