Updates in Differentiated Thyroid Cancer

Abstract: Radiation dosimetry is fundamental in Medical Physics, involving patients and phantom dosimetry. In both cases thermoluminescence dosimetry (TLD) is the most appropriate technique for measuring the absorbed dose. In this paper thermoluminescence phenomenon as well as the use of TLD in radiodiagnosis for skin dose in thyroid and breast measurements are discussed. Some results of measurements made in radiodiagnosis using TLD GR200 LiF, Mg, Cu and P are presented.Materials and Methods: We used three types of thermoluminescence dosage capsules, and each time in completely similar standardized conditions. The three annealed capsules were placed in each area of breast and thyroid lobes, and the amount of the exposed X-ray injected was accurately recorded, and after reading the capsules in the physics laboratory, the scatter dose of each capsule was obtained and by applying physical coefficients, including calibration, the adsorbed dose rate was reported.Results: According to the results, the absorbed dose of the two thyroid and breast organs outside the radiation field in a craniocaudal view and the fact that under normal conditions of breast screening without any additional radiation, magnifying, etc., includes 4 craniocaudal and oblique views, the radiation of these organs and protecting them is necessary and very important

کلیدواژه ها:

Exposure ، Scatter Dosimeter ، Mammography ، Thermoluminescence