Determination of radionuclides in environmental test items at CPHR: traceability and uncertainty calculation.
Appl Radiat Isot
; 66(11): 1632-5, 2008 Nov.
Article
in En
| MEDLINE
| ID: mdl-18513980
ABSTRACT
Information about how the laboratory of Centro de Protección e Higiene de las Radiaciones (CPHR), Cuba establishes its traceability to the International System of Units for the measurement of radionuclides in environmental test items is presented. A comparison among different methodologies of uncertainty calculation, including an analysis of the feasibility of using the Kragten-spreadsheet approach, is shown. In the specific case of the gamma spectrometric assay, the influence of each parameter, and the identification of the major contributor, in the relative difference between the methods of uncertainty calculation (Kragten and partial derivative) is described. The reliability of the uncertainty calculation results reported by the commercial software Gamma 2000 from Silena is analyzed.
Full text:
1
Collection:
01-internacional
Health context:
2_ODS3
Database:
MEDLINE
Main subject:
Radioisotopes
/
Algorithms
/
Radiation Monitoring
/
Data Interpretation, Statistical
/
Environmental Exposure
Type of study:
Diagnostic_studies
/
Prognostic_studies
Country/Region as subject:
Caribe
/
Cuba
Language:
En
Journal:
Appl Radiat Isot
Year:
2008
Document type:
Article