Art State of Radioprotection Laboratory of Centro Regional de Referencia para la Dosimetría, C.N.E.A, C.A.E.

摘要

External radiation quantity can be measured in terms of, for example exposure, air kerma, ambientdose equivalent and personal dose equivalent by using radiation measuring instruments.Radiation survey instruments and dosimeters are usually used to determine the amount of radiation fromexposure to ionizing radiation and they need to be calibrated to ensure that they give accurate reading with acertain uncertainties.Dosimetry Calibration Laboratories have to be able to fulfil the requirements for traceable and reliablecalibrations. A way to demonstrate it is through comparisons with primary or accredited laboratories and theestablishment of a quality system following the International Organization for Standarization (ISO) Guide 17025.The Secondary Standard Dosimetry Laboratory (SSDL) of the Argentina “Centro Regional de Referencia para laDosimetría (CRRD)”, C.N.E.A, is the national centre for the calibration of measuring instruments used inradiation protection and radiotherapy. The main facilities related to radioprotection include a constant potentialx-ray system with a 300 kV tube and a new Hopewell Designs, Inc. Irradiator gamma Model G10-2-2600 (leadattenuator of 2, 4 and 6cm). Reference standard dosimeters traceable to the BIPM Dosimetry Laboratory and theIAEA (International Atomic Energy Agency) Dosimetry Laboratory are used in the calibration procedures bycomparison with points calibrated.In this work a compilation of data obtained from instruments calibration and dosimeters irradiation that werecarried on in CRRD during the last years is presented. Reported data are: amount of instruments calibrated permonth, per kind, manufacturer and model. At the end of the year is planning to do the first internal audit to couldaccredit the Radioprotection procedures next year.