{'fraction_non_alphanumeric': 0.011627906976744186, 'fraction_numerical': 0.0, 'mean_word_length': 5.537974683544304, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
MATRIX IONIZING RADIATION DETECTORS USED IN RADIATION THERAPY

Radiation therapy of malignant neoplasms can cause radiation reactions and complications from normal tissues in patients. The main requirement for radiation protection of patients is the maximum possible dose reduction in normal organs and tissues surrounding the target. Another requirement for the provision of high-quality medical services is the establishment of a quality assurance system for radiation therapy in clinics. The article provides an overview of modern matrix detectors of ionizing radiation used in radiation therapy. The principle of operation of matrix detectors, which have been widely used on modern medical linear electron accelerators, is considered. It is shown that an important stage of the radiation therapy quality control program is the use of matrix detectors to assess the dose distribution in the patient’s body, the patient’s position on the treatment table and when evaluating the dosimetric parameters of the radiotherapy apparatus.