• Title/Summary/Keyword: 방사선(학)과

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A Study on Regulations Through Analysis of the Status of Radiation Workers and Related Workers and Satisfaction Survey in the Radiology Department (방사선작업종사자 및 방사선관계종사자의 현황 분석과 교내 실습 만족도 조사를 통한 방사선(학)과의 규제에 대한 고찰)

  • Jung, Hyunseo;Lee, Yong-Ki;Ahn, Sung-Min
    • Journal of the Korean Society of Radiology
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    • v.16 no.3
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    • pp.327-334
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    • 2022
  • In this study, the purpose of this study was to conduct a basic study on the effectiveness and feasibility of the regulation of the Nuclear Safety Act for the department of radiology by examining the questionnaire on the satisfaction of on-campus practice while attending the department of radiology and the current status of radiation workers and radiation related workers. As for the satisfaction of the workers who were designated as frequent visitors while attending the department of radiology and did not handle and operate the radiation generator during on-campus training, 34.62% of the workers answered 'not satisfied'. On the other hand, 50% of workers who were designated as radiation workers while attending school or who were enrolled in school before the regulation of the nuclear safety act and handled and operated radiation generators were 'satisfied' at 50%. In addition, the annual exposure dose of radiation workers in educational institutions was found to be less than 0.05 mSv. If you look at the trends of radiation workers and radiation workers, it can be seen that students who graduate from the Department of Radiology find the most employment in the field dealing with diagnostic radiation generators registered as radiation workers among medical institutions. Therefore, by easing the regulations of the current Nuclear Safety Act or by amending the medical act and the rules on the safety management of diagnostic radiation generating devices, etc. It is presumed that something is necessary.

Analysis of Lead and Bismuth Absorption Rate by Monte Carlo Simulation (몬테카를로 시뮬레이션에 의한 납과 비스무트 흡수율 분석)

  • Kim, Gap-Jung;Kim, Nak-Sang;Yoo, Se-Jong;Lee, Won-Jeong;Kim, Jeong-Ho;Hong, Seong-Il;Jeon, Min-Cheol
    • Journal of the Korean Society of Radiology
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    • v.16 no.4
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    • pp.419-425
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    • 2022
  • In the medical field, lead aprons are used to protect the human body from radiation. However, lead is a heavy metal that is harmful to the human body and the environment, so various shield are being developed. In this study, bismuth, which has a similar atomic number to lead, was set as a new material and the absorption rate according to thickness in the same energy region was compared and evaluated through Monte Carlo simulation. The same tendency was confirmed when the thickness of the lead shield was 0.25 mm, the thickness of the bismuth was 0.3 mm, when the lead was 0.50 mm, the bismuth was 0.60 mm, and when the lead was 0.75 mm, the bismuth was 0.90 mm. Therefore, it is reasonable to replace lead with bismuth in the shield material.

A Study on the Exposure Dose of Workers and Frequent Workers in the Radiology Department (방사선(학)과의 작업종사자와 수시출입자의 교내 실습에 따른 피폭선량에 대한 고찰)

  • Jeon, Seong-Min;Lee, Yong-Ki;Ahn, Sung-Min
    • Journal of the Korean Society of Radiology
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    • v.15 no.3
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    • pp.355-359
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    • 2021
  • In this study, the purpose of this study was to analyze the degree of exposure of radiation workers assigned to the Department of Radiology and frequent visitors during on-campus practice, and to conduct a basic study on the feasibility and optimization of the radiation protection of the Nuclear Safety Act for the Department of Radiology. . The average exposure dose of occupational workers by year was 0.01 mSv, the lowest in 2014 and 2016. The highest figure was 0.12 mSv in 2018. The average exposure dose of frequent visitors by year was the lowest at 0.013 mSv in 2018, and the highest at 0.022 mSv in 2016. According to this study, the annual exposure dose received by professors, practical assistants, and students in the department of radiology (department) who use only radiation generators in the course of in-school practice is less than 1 mSv, which is the dose limit for the general public. Therefore, at the time when the radiation dose of students in the Department of Radiology is lower than the dose limit of the general public, the current safety regulation of the Nuclear Safety law is judged to be excessive regulation. Therefore, it is considered necessary to revise the regulations for radiation generators in the current Nuclear Safety law or to revise the radiation safety management system for university students.