en Radiation Biology Radiation Biology مقاله مروری Review article <div style="text-align: justify;"><span style="font-size:10pt"><span style="text-justify:newspaper"><span style="text-kashida-space:50%"><span style="line-height:119%"><span style="font-family:Calibri"><span style="color:black"><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">Radiotherapy has been the modality for treating cancer patients worldwide for more than 100 years. Radiation dose to patients is delivered through different techniques using high-energy photon beams generated by the linear accelerators. Radiotherapy techniques are developing at a speed never seen before. For continuous improvement, safe and effective radiotherapy delivery requires implementing adapted quality assurance (QA) programs and integral quality management (QM) systems. A key step in any QA program is the dosimetry audit. It provides an effective tool to improve the accuracy of patients&rsquo; treatments. In the global panorama, dosimetry audit programs are conducted by various institutions. Still, the largest of them is the International Atomic Energy Agency (IAEA) in Vienna, Austria, the Imaging and Radiation Oncology Core (IROC-H) Houston QA Center in the USA, and EQUAL (European Quality Laboratory) Laboratory in the framework of the ESTRO (European Society for Therapeutic Radiology and Oncology) ESTRO &ndash; EQUAL Laboratory in Villejuif Cedex, France.</span></span></span></span></span></span></span></span></span></div> Radiotherapy, radiation dosimetry, thermoluminescent dosimetry, film dosimetry, radio photoluminescent dosimetry. 783 796 http://ijrr.com/browse.php?a_code=A-10-1-1397&slc_lang=en&sid=1 K.M. Sergieva ksergieva@medfac.mu-sofia.bg 7900319475328460031960 7900319475328460031960 Yes Medical University Sofia, Faculty of Medicine, Department of Nuclear Medicine, Radiotherapy and Medical Oncology, Sofia, Bulgaria L.L. Traikov 7900319475328460031961 7900319475328460031961 No Medical University Sofia, Faculty of Medicine, Center of Biomedical Sciences-CBS, Department of Medical Physics and Biophysics, Sofia, Bulgaria T.G. Bogdanov 7900319475328460031962 7900319475328460031962 No Medical University Sofia, Faculty of Medicine, Center of Biomedical Sciences-CBS, Department of Medical Physics and Biophysics, Sofia, Bulgaria E.S. Stoyanova 7900319475328460031963 7900319475328460031963 No Medical University Sofia, Faculty of Medicine, Center of Biomedical Sciences-CBS, Department of Medical Physics and Biophysics, Sofia, Bulgaria R. Tafraddjiiska-Hadjiolova 7900319475328460031964 7900319475328460031964 No Medical University Sofia, Faculty of Medicine, Center of Biomedical Sciences-CBS, Department of Medical Physiology and Pathophysiology, Sofia, Bulgaria V.H. Hadzhiyska 7900319475328460031965 7900319475328460031965 No Medical University Sofia, Faculty of Medicine, Department of Nuclear Medicine, Radiotherapy and Medical Oncology, Sofia, Bulgaria