Preliminary Results of Quality Control for Linear Accelerator at Oncology Center in Nouakchott

The National Center of Oncology in Nouakchott is equipped with a linear accelerator which provides two energies in photon regime 6 MV and 18 MV. The basic dosimetric data required for quality of operation, in the clinical routine of the accelerator for photon beams are percentage depth dose (PDD) curves and beam profile (BP) curves. The aim of this work is to measure the percentage depth dose (PDD) and beam/dose profile (BP) for 6 MV and 18 MV photon beams for different field sizes and for different Skin-Source-Distance (SSD), and to compare the measured results with the results calculated by Treatment Planning Systems (TPS). The measured results of (PDD) and (BF) are consistent with those calculated by TPS, which allows us to conclude that the linear accelerator at oncology Center in Nouakchott is in good condition. Other Parameters: (energy, (SSD) and field sizes) have been also studied in this work, in order to perform a comprehensive quality study for this accelerator a unique oncology at Mauritania.