Objective: To implement a Postal Quality Control System to verify the Treatment Planning System in Teletherapy using Dosimeters Al2O3 :C, based on optically stimulated luminescence (OSL), commercially known as OSLD nanoDotTM.  Materials and Methods: A mannequin containing OSLD nanoDot TM dosimeters, (Al2O3 :C), previously characterized and calibrated for the energy of a 6.0 MV x-ray beam generated in a linear accelerator, the absorbed dose values were measured with: a Semiflex, ionization chamber, PTW – Freigburg electrometer,  3D radiation geometries, such as: Simple geometry (open field at 0º and 25º), Complex geometry (three open fields at 0º, 90º and 270º) and Combined geometry (field and various variations of Gantry rotation), using square fields (6cm2), circular (diameter 6cm), oblique (6cm x 6cm) and Irregular, equal weights and virtual wedge filters in different ...

In radiotherapy, it is essential to have an alternative dosimetric system to identify possible errors at some stage of the process. The optically stimulated luminescence (OSL) technology represents a great advance in the detection of radiation in different areas, one of them being in the area of clinical dosimetry. Objective: To implement an alternative dosimetric system, based on OSL technology of carbon-doped aluminum oxide crystals.  Material and methods: Al2or3:C detectors called "nanodot", MicroStar reader, ionization chambers (Standard Imaging and PTW Freiburg), electrometers (PTW-Freiburg and MNCNP) and other accessories.  Results: The dosimetric - algorithmic procedure, developed for the calculation of the adsorbed dose in the tumor volume, reproduces the dose values with uncertainties less than 2% for a confidence level of 95% and with relative differences less than 5%...