High-Energy Electromagnetic Wave Radiation Analysis Study of Laboratories Using Digital Medical Imaging Devices

Abstract

Devices that acquire digital medical images using radiation (DR; Digital Radiography) are widely used in medical institutions to obtain information necessary for patient diagnosis, and the frequency of use is gradually increasing. By selecting 3 hospitals that perform more than 50 digital X-ray medical imaging tests per day, and by installing a glass dosimeter for environmental measurement on the outside of the examination room protection wall, entrance door, and patient viewing window, the leakage radiation dose was measured for one month from May 16, 2021 to June 21, 2021, then it was analyzed by converting into a 3-month cumulative dose. The cumulative dose equivalent of 1 cm in the glass dosimeter for 3 months outside the shielding wall at the entrance of the digital medical image acquisition radiation generating device examination room was 0.96 mSv, and the average value was 0.18 mSv. In addition, the cumulative 1 cm dose equivalent value of the glass dosimeter for 3 months outside the shielding wall on the control room side showed a maximum of 3.03 mSv and an average of 0.41 mSv. The glass dosimeter cumulative dose 1cm dose equivalent value was up to 8.31 mSv and averaged 2.09 mSv for 3 months outside the door of the patient waiting room of the digital medical image acquisition radiation generating device examination room. In addition, the glass dosimeter cumulative dose 1cm dose equivalent value for 3 months outside the control room door showed a maximum of 14.04 mSv and an average of 3.84 mSv. These research results are expected to be widely used in setting measurement methods and regulatory standards for environmental radiation safety management of medical radiation generators, and continuous research management at the national level is suggested.