Groppi, F On the high-resolution gamma-ray spectrometric measurement of 40K in natural and synthetic materials. [electronic resource] - Radiation protection dosimetry 2005 - 441-4 p. digital Publication Type: Evaluation Study; Journal Article ISSN: 0144-8420 Standard No.: 10.1093/rpd/nci210 doi Subjects--Topical Terms: Gamma RaysManufactured Materials--analysisPotassium Radioisotopes--analysisRadiation DosageRadiation Monitoring--methodsRadiation Protection--methodsReproducibility of ResultsSensitivity and SpecificitySpectrometry, Gamma--methods