Radyoterapi çalışanlarının maruz kaldığı radyasyon miktarının dozimetrik değerlendirilmesi

Abstract

Aim: Radiotherapy is one of the most commonly used cancer treatment methods and high dose ionizing radiation is used to provide therapeutic effect. Radiation exposure is the biggest occupational problem for radiotherapy personnel working in this radiation environment and serious protection measures must be taken. In this regard, the last 3 years of personal dosimeter values of all the staff working in our radiation oncology clinic were examined and radiation exposure rates were evaluated. Material and Method:Between 2015 and 2018, the data of TLD measurements of personal dosimeters of all personnel were recorded, the amount of doses exposed in the measurement periods, the average doses exposed in the measurement periods according to occupational groups, the annual total dose exposure and the differences between the groups were evaluated. Results:For measurements in a total of 18 periods, the average amount of dose each employee is 0.21 mSv per period. When evaluated according to profession groups they were; 0,20 mSv in physicians, 0,20 mSv in medical physicists and 0,21 mSv in technicians. There was no statistically significant difference between the groups. While evaluating the periods individually, the doses exposed by the occupational groups are similar, but there is a significant difference between the physicians and other workers in the 1st period of 2016 and the 5th period of 2017 and between the medical physicists and other workers in the 3rd period body doses of 2018 and the fourth period of 2018. Conclusion:Staff training, dosimetric measurements, and inspections are extremely important in a radiation oncology center. All of our measurement values performed in our clinic, where we have radiotherapy experience for nearly 30 years, were determined in accordance with international standards. In this direction, it is recommended that all centers working with radiation should make current evaluations meticulously.