Estimation of ambient dose equivalent from environmental radiation using a 7 LiF:Mg,Cu,P thermoluminescence dosemeter

This paper aims to present the characterization of the dosimetric system based on 7 LiF:Mg,Cu,P dosemeter used for environmental radiation monitoring and workplace monitoring. In order to characterize this dosimetric system, the main influence quantities of the dosimetric response must be analyzed. This study presents the results for the energy dependence response of Harshaw 7 LiF:Mg,Cu,P (TLD-700H) dosemeter. Calibrations were done in secondary standard laboratory condition at the Czech Metrology Institute – Inspectorate for Ionizing Radiation. The energy dependence of dosemeter response was studied by irradiating the thermoluminescent dosemeters at the same value, in terms of air kerma, at 2.00 mGy, for 11 radiation quality, from N-40 to S-Co. (Received October 25, 2011; accepted November 23, 2011)