• 대한방사선기술학회지:방사선기술과학
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• 제44권2호
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• pp.123-131
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• 2021

In this study, safety education contents for medical radiation workers were produced based on Mixed Reality(MR). Currently, safety training for radiation workers is based on theory. This is insufficient in terms of worker satisfaction and efficiency. To address this, we created ICT(Information and Communication Technologies)-based MR radiation worker safety education content. The expected effect of Mixed Reality worker safety education content is that education is possible without space and time constraints, realistic education is possible without on-site training, and interaction between images is possible through reality-based 3D images, enabling self-directed learning Is that. In addition, learning in a virtual space expressed through HMD(Head Mounted Display) is expected to make education more enjoyable and increase concentration, thereby increasing the efficiency of education. A quantitative evaluation was conducted by an accredited institution and a qualitative evaluation was performed on users, which received excellent evaluation. The MR safety education conducted in this study is expected to be of great help to the education of medical radiation workers, and is expected to develop into a new educational paradigm as online education in accordance with Corona 19 progresses.

• Nuclear Engineering and Technology
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• 제48권6호
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• pp.1368-1375
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• 2016

A radiological safety assessment study was performed for the transportation of low level radioactive wastes which are temporarily stored in Korea Atomic Energy Research Institute (KAERI), Daejeon, Korea. We considered two kinds of wastes: (1) operation wastes generated from the routine operation of facilities; and (2) decommissioning wastes generated from the decommissioning of a research reactor in KAERI. The important part of the radiological safety assessment is related to the exposure dose assessment for the incidentfree (normal) transportation of wastes, i.e., the radiation exposure of transport personnel, radiation workers for loading and unloading of radioactive waste drums, and the general public. The effective doses were estimated based on the detailed information on the transportation plan and on the radiological characteristics of waste packages. We also estimated radiological risks and the effective doses for the general public resulting from accidents such as an impact and a fire caused by the impact during the transportation. According to the results, the effective doses for transport personnel, radiation workers, and the general public are far below the regulatory limits. Therefore, we can secure safety from the viewpoint of radiological safety for all situations during the transportation of radioactive wastes which have been stored temporarily in KAERI.

• 대한방사선기술학회지:방사선기술과학
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• 제44권5호
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• pp.481-487
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• 2021

This study was conducted for the purpose of efficient radioactive waste disposal and management. Experiment was evaluated the decontamination efficiencies of the four types decontamination materials(Water, Alcohol, Decontamination Water, Decontamination Gel) with radioactive wastes generated during radio-pharmaceutical production process at Korea Institute Radiological and Medical Sciences(KIRAMS). The radioactive waste sample used in experiment is a lead plate of the fume hood that was disposed in April, 2019. In the experimental method, radioactive waste was measured before and after decontamination using a HPGe semiconductor detector and Gamma survey meter. The measured values before and after decontamination were evaluated for decontamination efficiency as a percentage. As a result, it was confirmed that a lot of specific activity and surface dose rate was removed from the radioactive wastes. In particular, when decontamination water was used, most of the radioactivity of radioactive wastes was removed. Considering these results, if decontamination water is used in decontamination of radioactive waste, decontamination efficiency equivalent to the disposition criteria can be expected with just one decontamination treatment. In addition, in the case of water and alcohol, only on decontamination was effective in approximately 75% and 95%. Otherwise, when decontamination gel was used, it was confirmed that the largest deviation occurred among all experimental results.

• 대한방사선기술학회지:방사선기술과학
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• 제34권2호
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• pp.123-129
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• 2011

본 연구는 방사선사들의 방사선방어에 대한 인식, 지식 및 행위를 조사하여 종사자 본인은 물론 환자 및 환자보호자의 불필요한 방사선피폭을 줄이는 방안을 마련하고자 수행하였다. 자료수집은 구조화된 설문지를 사용하여 부산시내에 근무하는 방사선사 225명을 대상으로 하였다. 회수된 자료에 대한 분석은 SPSS/PC+ Win 13 버전을 사용하였다. 또한 집단 간 차이 검증을 위해 일원분산분석(oneway ANOVA)을 시행하였으며, 일반변인(지식, 학력, 연령, 근무경력)이 방사선안전관리측면에 미치는 영향력을 분석하기 위하여 중다회귀분석(Multiple regression)을 시행하여 검증하였다. 학력, 연령, 근무경력에 따른 방사선/능의 지식은 차이가 없는 것으로 분석되었으며, 방사선안전관리의 경우 40대 이상과 대졸이상에서 가장 높은 수치를 나타냈다. 또한 방사선안전관리와 방사선/능의 지식정도와의 상관관계에서는 모두 정적상관을 나타냈으며, 일반변인이 방사선안전관리측면에 미치는 영향력을 분석한 결과 방사선/능의 지식이 높을수록 방사선안전관리에 대한 인식이 높은 것으로 나타났다. 방사선 종사자 및 환자에 대한 방사선피폭을 줄이기 위해서는 종사자 교육을 통한 올바른 방사선/능의 관리에 있다고 판단된다.

• 대한방사선기술학회지:방사선기술과학
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• 제41권6호
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• pp.573-580
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• 2018

The Nuclear Safety Commission amended the Nuclear Safety Act by strengthening the safety management system for the frequent workers to the level of radiation workers. And students entering radiation management zones for testing and practical purposes are subject to frequent workers. It is inevitable that this will incur additional costs. In this paper, the validity of the amendment to the Nuclear Safety Act was to be assessed in terms of radiation protection. Study subjects are from 2014 to 2016, among university students in Seong-nam Korea and comparisons for analyses were made taking into account variables that are differences in annual, practical types, on-class and clinical practice students exposure dose. The analysis showed that exposures between on-class and clinical practice received were less than the annual dose limit of 1 mSv for the public. Then, some alternatives that excluding from frequent workers during on-class practice or mitigating the frequent workers' safety regulation for only on-class frequent workers can be considered. Optimization is how rational is the reduction in exposure dose to the costs required. Therefore, the results are hardly considered for optimization. If the data accumulated, it could be considered that the revision of the act could be evaluated and improved.

• 한국환경보건학회지
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• 제50권1호
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• pp.1-5
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• 2024

International Commission on Radiological Protection (ICRP) is an independent international organization that advances the science of radiological protection for the public benefit, particularly by providing recommendations and guidance on all aspects of protection against ionizing radiation. The ICRP is a community of more than 380 globally-recognized experts in radiological protection science, policy, and practice from more than 50 countries. As of January 2024, the ICRP is comprised of a Main Commission, the Scientific Secretariat, four Standing Committees, and 30 Task Groups under the four committees. The ICRP has released well over one hundred publications on all aspects of radiological protection. Most address a particular area within radiological protection, but a handful of the publications, the so-called fundamental recommendations, describe the overall system of radiological protection. The system for radiological protection is based on the current understanding of the science of radiation exposure and its effects along with value judgements. The ICRP offers recommendations to regulatory and advisory agencies and provides advice to management and professional staff with responsibilities for radiological protection. Legislation in most countries adheres closely to ICRP recommendations. The International Atomic Energy Agency's (IAEA) International Basic Safety Standards are based heavily on ICRP recommendations. ICRP recommendations form the core of radiological protection standards, legislation, programs, and practice worldwide.

• 대한방사선기술학회지:방사선기술과학
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• 제46권2호
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• pp.141-149
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• 2023

The Korea Institute of Radiological and Medical Sciences plans to produce ²²⁵Ac, a therapeutic radio-pharmaceutical for precision oncology, such as prostate cancer. Radon, a radioactive gas, is generated by radium, the target material for producing ²²⁵Ac. The radon concentration is expected to be about 2000 Bq·m^-3. High-concentration radon-generating facilities must meet radioactive isotope emission standards by lowering the radon concentration. However, most existing studies concerning radon removal using activated carbon filters measured radon levels at concentrations lower than 1000 Bq·m^-3. This study measured ²²²Rn removal of coconut-based activated carbon filter under a high radon concentration of about 2000 Bq·m^-3. The ²²²Rn removal efficiency of activated carbon impregnated with triethylenediamine was also measured. As a result, the ²²²Rn removal amount of the activated carbon filter showed sufficient removal efficiency in a ²²²Rn concentration environment of about 2000 Bq·m^-3. In addition, despite an expectation of low radon reduction efficiency of Triethylenediamine-impregnated activated carbon, it was difficult to confirm a significant difference in the results. Therefore, it is considered that activated carbon can be used as a radioisotope exhaust filter regardless of whether or not Triethylenediamine is impregnated. The results of this study are expected to be used as primary data when building an air purification system for radiation safety management in facilities with radon concentrations of about 2000 Bq·m^-3.

• 한국방사선학회논문지
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• 제16권7호
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• pp.815-824
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• 2022

현행 방사선안전관리 제도가 대학에서 방사선 실습을 하는 경우에도 적용되어 방사선 실습 교육의 부실과 방사선학의 발전을 저해할 우려가 있다. 이에 대한 방사선(학)과 교수협의회는 전국 방사선학과 학과장을 대상으로 각 대학의 방사선 실습 교육에 대한 관리체계 및 방사선안전관리 제도의 현실을 파악하기 위해 설문조사를 실시하였다. 설문조사를 통해 현행 방사선(학)과의 방사선안전관리에 대해 「원자력안전법」을 적용받는 것은 과도한 제한이며, 효과성도 크지 않다는 것을 알 수 있었다. 또한 방사선학과 실습 교육은 보건의료인 양성을 목적으로 하고 있기에 보건복지부 및 질병관리청의 지휘를 받아야 하나 원자력안전관리위원회의 관리감독을 받는 문제가 있다. 본 논문에는 「원자력안전법」 시행령을 개정하여 수시출입자의 정의에서 실습 교육을 수강하는 학생을 제외하는 방안을 기본으로 제안하였다. 추가적으로 첫째, 「고등 교육법」 일부개정법률안에 따른 방안, 둘째, 「의료법」 제37조 개정을 통해 보건복지부의 감독을 받는 방안, 셋째, 「의료기사에 관한 법률」 제20조의2를 신설하여 보건복지부의 감독을 받는 3가지 방안을 제안하였다.

• 디지털융복합연구
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• 제12권2호
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• pp.423-430
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• 2014

환자안전 문화에 대한 종합병원 방사선사의 인식을 조사하여 방사선사의 환자안전관리를 위한 기반을 제공하고 안전 활동을 위한 프로그램을 개발하는데 기초자료로 제공하고자 한다. 환자안전 문화에 대한 종합병원 방사선사의 인식을 조사하여, 본 연구의 조사기간은 2012년 6월 13일부터 6월 20일까지 대전광역시 소재 5개 종합병원에 근무하는 방사선사들을 대상으로 198명의 자료를 분석하였다(SPSS 19.0v). 환자안전 활동에 영향을 미치는 요인을 부서 내, 직속상관, 의사소통, 의료사고, 병원 별, 환자안전도에 대한 안전문화와 보고된 사고, 위험하다고 느끼는 환자 안전사고, 가장 많이 발생한 환자 안전사고를 평가한 결과 의료사고 보고체계에 따른 환자안전 문화에 관한 인식에서는 근무기간 25년 이상에서 가장 높게 나타났고 환자안전도 평가에서는 근무기간 10년~15년에서 가장 높게 나타났다. 그러므로 종합병원 방사선사의 환자안전문화를 개선하기 위해서는 충분한 인력 배치, 환자안전문제에 대한 적극적인 접근, 그리고 안전사고의 재발 방지를 위해 방사선사의 근무기간을 고려한 임무 부여 등으로 체계적인 의료사고 보고 체계를 활성 시켜야 할 것이다.

• 한국기술혁신학회:학술대회논문집
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• 한국기술혁신학회 2003년도 추계학술대회
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• pp.369-386
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• 2003

Radiation technologies are being utilized in a wide range of daily modern life and provide the public with valuable benefits through applications in fields of medical, industrial, agricultural, and science & engineering research. On the other hand, there is a high possibility that radioactive materials can be used for malevolent purposes such as dirty bombs. The International community, therefore, has made efforts to improve the security of radioactive sources aimed at protecting the public from radiological terrorism. The paper investigated high-risk radioactive sources which could be used as dirty bombs. The paper reviewed the possibility of radiological weapon attacks and analyzed international trends to enhance security of radioactive sources. This study also proposed our countermeasures to reduce the threat of radiological terrorism and to properly respond to the radiological emergency caused by the radiological weapon attack.