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http://dx.doi.org/10.17946/JRST.2019.42.6.477

Measurement of the Spatial Scattering Dose by Opening, Closing Door and Installing Shielding : A Study on the Reduction of Exposure Dose in Radiography  

Yoon, Hong-Joo (Department of Radiological Technology, Dongnam Health University)
Lee, Yong-Ki (Department of Radiological Technology, Chungbuk Health & Science University)
Lee, In-Ja (Department of Radiological Technology, Dongnam Health University)
Publication Information
Journal of radiological science and technology / v.42, no.6, 2019 , pp. 477-482 More about this Journal
Abstract
Recently, due to the increased use of medical radiation, the radiation exposure of radiation workers should be considered as well as medical exposure of patients. And it is recommended to close the door during radiography. however, In this study, when the door was inevitably opened for radiography, the proposed method was to install the shield as a method of reducing the exposure dose. And its efficiency was analyzed. In simple chest radiography, the measurement point was changed according to the measurement location. Dose rate were measured 10 times for each condition using a dosimeter. And the average value was derived. Using this, the change of dose according to the opening and closing of the door and the installation of the shield was analyzed. Using this, we compared and analyzed the dose change according to the door opening and closing and the installation of the shield, and significance was verified through the SPSS ver. 24. Depending on whether the door was opened or closed, 11,215.35%, 159.0%, 101.9% increased in front of the door in the consol room, behind the wall and behind the lead glass. Depending on the installing of the shield, the 49.2%, 29.6%, 19.9%, 30.6% decrease in front of the door in the examination and consol room, behind the wall and lead glass. In addition, statistical analysis was showed that there were significant differences in both the results according to whether the door was opened or closed and shielding(p<.05). Close the door during radiography. However, when the door should be opened, it was confirmed that the dose rate were reduced by installing the shield. Therefore, to optimize radiation protection, it is recommended to install shields when opening the door.
Keywords
X-ray; Radiography; Leakage Dose and Scattered Dose; Exposure Dose; Shielding Board;
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Times Cited By KSCI : 4  (Citation Analysis)
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