Main Article Content
environmental monitoring, quality control, quality assurance
To assure that radiological monitoring is reasonably valid, organisations performing such measurements have found it necessary to establish quality assurance (QA) and quality control (QC) programs. These programs are needed to identify deficiencies in the sampling and measurement processes. In addition, validation of the monitoring aims to prove whether the results are acceptable. The major aim of QA and QC in analytical laboratories is to address measures used to verify the validity of the final results. In the document ISO 17025 the requirements on how to achieve QA and QC in analytical laboratories is described. All proposed measures for QC/QA are implemented in the Radiation and Environment Protection Department of Institute for Nuclear Sciences in Vin?a, Belgrade. This paper presents the summarisation and analysis of QC and QA measures undertaken by the Laboratory for Environmental and Radiation Protection of the Vin?a Institute of Nuclear Sciences. Total of 6 months of QC/QA charts are presented in this paper for 2 HPGe gamma spectrometry detectors and one gross alpha/beta detector. The data were analysed and conclusions were made concerning the stability of the measurement systems. In cases of unsatisfactory behaviour of the system, some correctional measures are proposed and conducted and the effect on the measurement system is discussed.
Chinnaesakki, S., Bara, S.V., Sartandel, S.J., Tripathi, R.M. and Puranik, V.D., 2012. Performance of HPGe gamma spectrometry system for the measurement of low level radioactivity. Journal of Radioanalytical and Nuclear Chemistry 294: 143-147.
International Atomic Energy Agency (IAEA), 2004. Quality system implementation for nuclear analytical techniques. Training course series 24. IAEA, Vienna, Austria. Available at: http://www-pub.iaea.org/MTCD/Publications/PDF/TCS-24_web.pdf.
International Organization for Standardization (ISO), 2006. General requirements for the competence of testing and calibration laboratories. ISO/IEC 17025. ISO, Geneva, Switzerland.
Panteli?, G., Vuleti?, V., Eremi? Savkovi?, M., Tanaskovi?, I. and Javorina, Lj., 2009. QA/QC in gamma spectrometry laboratory. Report of the technical meeting on quality assurance for nuclear spectrometry techniques (G4-TM-36923). October 12-16, 2009. IAEA, Vienna, Austria.
Panteli?, G., Vuleti?, V. and Mitrovi?, R., 2010. Proficiency test of gamma spectrometry laboratories in Serbia. Applied Radiation and Isotopes 68: 1270-1272.
Poms, R.E. and Astley, S., 2011. MoniQA: an update of the European Union funded Network of Excellence in 2011. Quality Assurance and Safety of Crops and Foods 3: 89-101.
Popovi?, D., Todorovi?, D., Spasic Joki?, V. and Djuri?, G., 2007. Air Radioactivity monitoring in Serbia In: Environmetal Tehnologies: New Developements, Burcu Ozkaraova Gungor, 147-166, I-Tech Inc, Vienna.
Sorbo, A., Colabucci, A. and Ciaralli, L., 2013. Control charts to evaluate long-term performance in proficiency tests. Accreditation and Quality Assurance 18: 291-298.