标准编号：ISO 8769:2016
中文名称：参考源 表面污染监测仪的校准 α、β和光子发射体
英文名称：Reference sources — Calibration of surface contamination monitors — Alpha-, beta- and photon emitters
发布日期：2016-01
标准范围
This International Standard specifies the characteristics of reference sources of radioactivesurface contamination, traceable to national measurement standards, for the calibration of surfacecontamination monitors. This International Standard relates to alpha-emitters, beta-emitters,and photon emitters of maximum photon energy not greater than 1,5 MeV. It does not describe theprocedures involved in the use of these reference sources for the calibration of surface contaminationmonitors. Such procedures are specified in IEC 60325[8], IEC 62363[9], and other documents.NOTE Since some of the proposed photon sources include filters, the photon sources are to be regarded assources of photons of a particular energy range and not as sources of a particular radionuclide. For example,a 241Am source with the recommended filtration does not emit from the surface the alpha particles orcharacteristic low-energy L X-ray photons associated with the decay of the nuclide. It is designed to be a sourcethat emits photons with an average energy of approximately 60 keV.This International Standard also specifies preferred reference radiations for the calibration ofsurface contamination monitors. These reference radiations are realized in the form of adequatelycharacterized large area sources specified, without exception, in terms of surface emission rates whichare traceable to national standards.
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