• Journal of Radiation Protection and Research
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• v.35 no.1
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• pp.12-20
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• 2010

In a primary system at nuclear power plants (NPPs), various radionuclides including fission products and corrosion products are generated due to the complex water conditions. Particularly, $^3H,\;^{14}C,\;^{58}Co,\;^{60}Co,\;^{137}Cs,\;and^{131}I$ are important radionuclides in respect of dose assessment for radiation workers and management of radioactive effluents. In this paper, the dominant contributors of radiation exposure for radiation workers and the member of public adjacent to NPPs were reviewed and the process of dose assessment attributable to those contributors were introduced. Furthermore, the analysis for some examples of radiation exposure to radiation workers and the public during the NPP operation was carried out. This analysis included the notable precedents of internal radiation exposure and contamination of demineralized water occurred in Korean NPPs. Particularly, the potential issue about the dose assessment of tritium and carbon-14 was also reviewed in this paper.

• Journal of Radiation Protection and Research
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• v.40 no.3
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• pp.162-167
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• 2015

Although the perfomance indicators of the nuclear power plants in Korea show optimal, it requires detailed analysis and discussion centered on the radiation dose. As analysis methods, analysis on the radiation dose of nuclear power plants over the past five years was assessed by comparing the relevant radiation dose of radiation workers and per capita average annual radiation dose of the world's major nuclear power stations was also analyzed. The radiation workers over the annual radiation dose limit of 50 mSv were not. The contrast ratio of the radiation exposure according to the reactor type was the normal operation of PHWR was 6.2% higher than those of the PWR. This shows the radiation work of PHWR during normal driving operation is much more than those of PWR. According to the Performance Indicators of the World Association of Nuclear Operator, the annual radiation dose per unit in 2013 showed 527 man-mSv of Korea is the best country among the major nuclear power generating states, the world average was 725 man-mSv. The annual per capita radiation dose is about 80% less than 1 mSv of the public dose limit and also the average per capita dose showed a very low level as 0.82 mSv. Workers in related organizations showed 1.07 mSv, the non-destructive inspection agency workers showed 3.87 mSv. The remarkable results were due to radiation reduced program such as development of radiation shielding and radiation protection. In conclusion, the radiation exposured dose of nuclear power plants workers in Korea showed a trend which is ideally reduced. But more are expected to be difficul and the psychological insecurity against the operation of the nuclear power plants is existed to the residents near the nuclear power plants. So the radiation dose reduction policy and radiation dose follow up study of nuclear power plants will be continously excuted.

• Nuclear industry
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• v.30 no.2
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• pp.22-29
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• 2010

• Nuclear industry
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• v.38 no.3
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• pp.35-41
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• 2018

• Nuclear industry
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• v.36 no.2
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• pp.28-36
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• 2016

• Nuclear industry
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• v.37 no.2
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• pp.47-56
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• 2017

• Nuclear Engineering and Technology
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• v.26 no.2
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• pp.324-336
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• 1994

경수로형 원전에서 발생되는 작업종사자에 대한 피폭선량의 약90%는 1차계통내 재질성분으로부터 방사화되는 코발트 핵종에 기인한다. 원전 선진국에서는 이러한 코발트 생성원을 근원적으로 제거하여 1차계통내 방사선량을 획기적으로 감소시킬 목적으로 Co reduction program을 중점적으로 추진하여 왔으며, 이중 계통내 코발트 주생성원인 각종 밸브재질을 저 Co 또는 Co-free 합금으로 대체시키는 기술이 이미 상당한 수준에 이르렀다. 국내의 건설예정 원전에 있어서도 이러한 기술개발의 적용에 대한 검토가 요구되고 있는 점을 미루어 볼 때, 머지 않은 장래에 국내 원전에 대한 이 기술의 적용이 불가피할 것으로 보여진다. 본 기고문에서는 원전 1차계통내 밸브의 코발트 합금재질 대체기술과 관련된 내용을 중점적으로 소개, 검토하고자 한다.

• Journal of Digital Convergence
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• v.12 no.7
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• pp.85-93
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• 2014

The Press related Energy including nuclear energy has social responsibility that it should pass the scientific factors to the right. It is essential to ensure the accuracy and fairness. The general public, such as press releases and information obtained through indirect communication affects social acceptance of nuclear power, which is used to determine the direction of energy policy, the most important factor to be taken into account. Recent rapid increase coverage of NPP lose in balance of nuclear power plants. In this study the qualitative interviews were performed with the workers who stand directly in obtaining information about nuclear related organizations. By E-mail and FGI the data were collected from the workers' perception about domestic nuclear news. They perceived the NPP news that the negative aspects of nuclear power plants were too much dealt in nuclear news coverage, and risk of NPP is only exaggerated and distorted, the lack of expertise knowledge on nuclear power and recognize that the cause was a lack of understanding. 'Nuclear mah' for the event were aware that should dig more thoroughly. The Journal of Digital Policy & Management.

• Nuclear industry
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• v.17 no.2 s.168
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• pp.19-32
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• 1997

원자력발전소 안전성 확보의 가장 중요한 요소는, 원전 시설 내에 근무하는 종사자와 원전 주변 주민은 물론, 생활 환경을 방사선과 방사성 물질로부터 보호하고, 원전운영으로 인한 각종 영향이 법적 제한치 이내에서 최소화되도록 관리하는 것이다. 방사선 안전 관리가 제대로 이루어질 때 국민적 신뢰가 확보되고, 원전 사업 기반은 더욱 튼튼하게 뿌리를 내리게 될 것이다. 96년도에 수행한 주요 방사선 안전 관리 실적에 대해 방사선 관리, 방사성 폐기물(이하 방사물) 관리, 환경 방사능 관리, 방사능 재해 등의 분야로 나누어 점검해 본다.

• Journal of Radiation Protection and Research
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• v.36 no.2
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• pp.99-106
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• 2011

Tritium is the one of the most important radionuclide for workers in nuclear power plants (NPPs) and the public, from the dosimetric point of view. Humans are likely to have internal radiation exposure by tritium inhalation. Radiation exposure by tritium accounts for approximately 7% and 60~90% of the total radiation exposure of NPP workers and the public during normal operation, respectively. Thus, many researches have been conducted to estimate the internal dose by tritium precisely in the world. In terms of tritium dosimetry, this paper provides the current status of research for tritium metabolism and dosimetry.