Results of type testing of MTS-N dosimeters with IEC 62387:2012 standard at the laboratory of external dosimetry in Nicaragua
DOI:
https://doi.org/10.15392/bjrs.v10i2A.2029Keywords:
dose response, requirement, type testingAbstract
This study presents the results of the verification of the method according to working procedures of the Laboratory of External Dosimetry (LDE) located at the Laboratory of Radiation Physics and Metrology (LAF-RAM), which is the only Individual Monitoring service provider in Nicaragua. The test is considered as validation of the method since the LAF-RAM follows a Quality Management System. The chosen performance testing according to IEC 62387:2012 are Coefficient of variation, Non linearity, Radiation energy and angle of incidence, Dosimeter droop, Light exposure (reader), Over-response of radiation incidence and Build up, fading, self-irradiance and natural radiation response. The results in general show that all test are in compliance with the requirements except for some temporal conditions in Buildup, fading, self-irradiance test.
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LAF-RAM. Laboratorio de Física de Radiaciones y Metrología. Procedimiento Verificación del Método LDE-PT-02 V.5. Managua: Laboratorio de Física de Radiaciones y Metrología, 2020.
IEC International Electrotechnical Commission. Thermoluminiscence Dosimetry Systems for personal and Environmental Monitoring, IEC 61066: 1991, Geneva, Switzerland, 1991.
IEC International Electrotechnical Commission. Radiation protection instrumentation – Passive integrating dosimetry systems for personal and environmental monitoring of photon and beta radiation, IEC 62387: 2012, Geneva, Switzerland, 2012.
ISO International Organization for Standardization. Radiological protection — X and gam-ma reference radiation for calibrating dosemeters and doserate meters and for determin-ing their response as a function of photon energy — Part 3: Calibration of area and per-sonal dosemeters and the measurement of their response as a function of energy and an-gle of incidence, ISO 4037-3:2019, Geneva, Switzerland, 2019.
Brunzendorf, J; Behrens, R. How to type test the coefficient of variation of an indication. Radiat Prot Dosimetry. 2007;123(1):21-31. doi:https://doi.org/10.1093/rpd/ncl078 DOI: https://doi.org/10.1093/rpd/ncl078
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