engleski

Comparison of different dosimetry system for dose measurements in diagnostic radiology

Pulmonary radiograms represents the majority of radiological examinations and their contribution to the exposure of the young population is essential. For evaluation of the children exposure the measurement of the radiation dose during the radiological examination of thoracal organs is needed. The aim of this study was to compare various thermoluminescent detectors (TLD) and radiophotoluminescent (RPL) glass dosimeters for dose measurements in routine X-ray diagnostic of chest. Doses were measured with dosimeters placed on several points (depending of the type of presumed examination) of the “ baby phantom” and also with the dosimeters placed “ free-in-air” . Irradiations were performed by the Shimadzu X-ray unit and the irradiation conditions selected were that most commonly used for children examinations. The results obtained with different detectors were compared and discussed. Special attention was made to the energy dependence of various dosimeters. Various tissue equivalent LiF detectors and the RPL dosimeters showed good characteristics for the measurements in the X-ray field. The results were discussed in radiation protection point of view.

TLD; RPL dosimetry; X-ray diagnostic

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