• 기술혁신학회지
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• 제13권4호
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• pp.772-793
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• 2010

본 논문은 공표데이터들(산업연관표, 관련미시통계)을 이용하여 2005년 우리나라의 방사선이용의 경제규모를 추정하였다. 방사선이용의 경제규모는 방사선 이용이 국민들의 후생과 복지 중진에 기여하는 부분적 정량적으로 도출한 것이므로 경제체제 내의 방대한 분야에서 다양한 형태로 사용되는 방사선이용의 전체 모습을 보여준다. 추정결과에 따르면 2005년의 방사선이용의 경제규모는 6조 2,971억원이며, 이는 GDP(851조 9,822억원)의 0.74%에 해당한다. 이는 미국 또는 일본의 방사선이용의 규모와 비교하면 낮은 수준이다. 분야별 방사선이용의 경제규모는 공업분야에서 5조 7,753억원(GDP 대비 0.68%), 농업분야에서 1,705억원(GDP 대비 0.020%), 의학 의료분야에서 3,513억원(GDP 대비 0.04%)이다. 공업분야에서 방사선이 가장 활발하게 이용되는 것으로 추정되었다. 그러나 우리나라의 연구구조의 변화를 고려할 때에 의학 의료분야에서의 이용이 보다 증가할 것으로 예상된다. 우리나라의 GDP에서 방사선이용의 경제규모가 차지하는 비중이 0.74%에 이른다는 추정 결과는 방사선이용이 국민생활에 기여하고 있는 정도를 새롭게 인식시킨다. 방사선이 이용되는 분야를 규명하고, 방사선이 국민의 후생을 향상시키는 것에 기여한다는 것을 명확하게 하는 것은 국민들이 방사선에 대해서 갖고 있는 부정적 이미지를 경감시키고 수용성을 높이는 것에 기여한다.

• Journal of Radiation Protection and Research
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• 제42권1호
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• pp.1-8
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• 2017

Background: The use of radiation and radioisotopes in Korea has been increasing each year, and its impact on economy and industry is expected to be increasing progressively following the development of industrial technology and the expansion of their usage. To establish and supporting policies for industries using radiation and radioisotopes, it is necessary to check the status of related industries accurately, as well as to gather data required to establish plans for industrial development by studying both revenues and economic scale (contributing to revenue). Materials and Methods: To analyze the status of utilization, surveys were carried out on 6,621 organizations engaged in nuclear operations handling radiation and radioisotopes pursuant to the Nuclear Safety Act as of end 2014, on 33,471 medical institutions using radiation generators for medical and diagnostic purposes pursuant to the Medical Service Act, and on 2,218 organizations using radiation generators for animal diagnostics pursuant to the Veterinary License Act. Results and discussion: The overall status of the domestic radiation market including the number of user organizations, that of employees, and the size of distributions (imports, productions, and exports) with which the scale of domestic radiation market can be judged showed a growth trend compared to the previous year, though the number of employees for radiation operation in industrial sector, research sector, education sector, military sector, and power plants (nuclear power plants) and the size of imports was reduced somewhat. Conclusion: It is expected that data acquired through periodic surveys on the status of utilization would be utilized practically in establishing governmental policies related to the promotion of usage of radiation and radioisotopes, and also be utilized widely in cultivating and developing the industry efficiently to invigorate the related industries.

• Journal of Korean Neurosurgical Society
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• 제58권2호
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• pp.163-166
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• 2015

The prophylactic use of phenytoin during and after brain surgery and cranial irradiation is a common measure in brain tumor therapy. Phenytoin has been associated with variety of adverse skin reactions including urticaria, erythroderma, erythema multiforme (EM), Stevens-Johnson syndrome, and toxic epidermal necrolysis. EM associated with phenytoin and cranial radiation therapy (EMPACT) is a rare specific entity among patients with brain tumors receiving radiation therapy while on prophylactic anti-convulsive therapy. Herein we report a 41-year-old female patient with left temporal glial tumor who underwent surgery and then received whole brain radiation therapy and chemotherapy. After 24 days of continous prophylactic phenytoin therapy the patient developed minor skin reactions and 2 days later the patient returned with generalized erythamatous and itchy maculopapuler rash involving neck, chest, face, trunk, extremities. There was significant periorbital and perioral edema. Painful mucosal lesions consisting of oral and platal erosions also occurred and prevented oral intake significantly. Phenytoin was discontinued gradually. Systemic admistration of corticosteroids combined with topical usage of steroids for oral lesions resulted in complete resolution of eruptions in 3 weeks. All cutaneous lesions in patients with phenytoin usage with the radiotherapy must be evoluated with suspicion for EM.

• 대한방사선기술학회지:방사선기술과학
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• 제47권2호
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• pp.107-116
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• 2024

In this study, we analyzed the use of general radiography imaging and effective dose in inpatients. Our aim is to help reduce national medical radiation exposure doses and develop rational health-care financial policies. The effective dose for each general radiography was calculated using the ALARA-GR program for 53 types (total: 260 codes) general radiography codes selected from 'National Health Insurance Care Benefit Cost'. The usage of general radiography was analyzed in the 2018 inpatient patient data of the Health Insurance Review and Assessment Service, and the effective dose for each general radiography was analyzed. 89.00% of inpatients undergo general radiography imaging at least once, with an average of 12.63 scans per person and an effective dose of 1.00 mSv. Those who received support from Medical Aid showed a higher value compared to those who were insured by National Health Insurance, with 17.39 cases and 1.43 mSv (p<.001). Chest had the highest usage rate at 23.12% for general radiography imaging, while L-spine had the highest effective dose at 24.53%. It is estimated that 420 inpatients patients undergo 121 to 820 general radiography imaging procedures per year, and 233 inpatients are estimated to have an annual effective dose of >20.00~58.25 mSv. Rational use of health-care finances and the practice of medical radiation safety management are essential for the well-being of individuals, the enhancement of quality of life, and the improvement of health-care quality.

• Journal of Astronomy and Space Sciences
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• 제40권2호
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• pp.59-66
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• 2023

Since the World Health Organization (WHO) officially announced a global pandemic on March 12, 2020, the aviation industry in the world has been experiencing difficulties for a long time. Meanwhile, the Ukraine war broke out in February, and from March 15, domestic airlines must operate air routes bypassing Russian airspace despite the longer flight time. Therefore, as the flight time increases, the cosmic radiation exposure dose of the crew members is also expected to increase. Here we compare the radiation exposure dose between the route doses for the eastern United States and Europe before and after the detour route usage. Through the comparison analysis, we tried to understand how cosmic radiation changes depending on the flight time and the latitude and which one contributes more. We expect that this study can be used for the policy update for the safety management of cosmic radiation for aircrews in Korea.

• 대한방사선기술학회지:방사선기술과학
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• 제44권5호
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• pp.495-502
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• 2021

This study aims to provide basic data for elderly health insurance policy and medical radiation safety management by analyzing the general radiography usage and exposure dose of the elderly in Korea. The effective dose for each general radiography was calculated using the ALARA-GR program for 260 general radiography codes selected from 'National Health Insurance Care Benefit Cost'. The usage of general radiography was analyzed in the 2016 elderly patient data of the Health Insurance Review and Assessment Service, and the effective dose for each general radiography was applied. The general radiography usage and exposure dose per person aged 65 years and over was 6.47 cases and 0.56 mSv. Females showed higher value than males as 7.15 cases and 0.66 mSv(p<.001). By age, those between 75 and 79 showed the highest number as 6.97 cases and 0.62 mSv(p<.001). Those who were supported by Medical Aid showed higher value than those who were insured by National Health Insurance as 8.82 cases and 0.76 mSv(p<.001). In addition, the ratio by radiography was in the order of Chest 20.85%, Knee Joint 15.58%, and L-spine 14.67%, and the exposure dose was L-spine 29.40%, Chest 15.82%, Abdomen 7.97%, and Entire Spine 7.20%. General radiography, which is widely used due to the high frequency of diseases in the elderly population should be taken into consideration when establishing health insurance policies. In addition, it is necessary to check whether the general radiography with high exposure dose is performed as a routine examination without considering medical necessity.

• 대한방사선기술학회지:방사선기술과학
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• 제41권5호
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• pp.397-403
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• 2018

Mobile X-ray generators are used not in the radiation area but in open space, which causes the exposure of secondary radiation to the healthcare professionals, patients, guardians, etc., regardless of their intentions. This study aimed to investigate the shielding effect of the developed radiation restrictor to block the secondary radiation scattered during the use of mobile X-ray generator. Upon setting the condition of mobile X-ray generator with chest AP, spatial doses were measured by the existence of human equivalent phantom and radiation restrictor, and measured by the existences of phantom and radiation restrictor at the same length of 100 cm. Measurements were taken at intervals of 10 cm every $30^{\circ}$ from $-90^{\circ}$ (head direction) to $+90^{\circ}$ (body direction). Upon the study results, spatial doses in all direction were increased by 45% on average when using phantom in the same condition, however, they were decreased by 64% on average when using the developed radiation restrictor. The dose at 100 cm from the center of X-ray was $3.0{\pm}0.08{\mu}Gy$ without phantom and was increased by 40% with $4.2{\pm}0.08{\mu}Gy$ after phantom usage. The dose when using phantom and the developed radiation restrictor was $1.4{\pm}0.08{\mu}Gy$, which was decreased by 66% compared to the case without using them. Therefore, it is considered the scattered radiation can be shielded at 100-150 cm, the regulation of the distance between beds, effectively with the developed radiation restrictor when using mobile X-ray generators, which can lower the radiation exposure to the people nearby including healthcare professionals and patients.

• Journal of Radiation Protection and Research
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• 제41권1호
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• pp.15-29
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• 2016

연구배경: 방사선이용 및 원자력발전의 외향적 성장에 비해 국민이 우려하는 건강권, 환경권, 안전권, 알권리, 발전권, 생존권 등 기본권과의 관계 분석은 전무한 상태이다. 재료 및 방법: 방사선 및 원자력 관련 실정법 내용을 가능한 높은 수준의 권리보장이라는 최대주의적 관점에서 다수의 기본권 분석을 통해 삶의 질 향상을 위한 법률적 보완 방안을 도출하였다. 결과 및 논의: 한국 헌법에 방사선 및 원자력발전과 직접 관계된 기본권 내용은 최소한 12개 조항으로 다수의 권리와 관계된다. 방사선 및 원자력관련 실정법 14종에 헌법적 기본권이 다양한 조항으로 모두 반영되어 있다. 다수의 기본권이 함께 적용된 방사선 및 원자력 관련 실정법은 인간 삶의 질 향상 목적에서 생존권을 우선으로 한 건강권, 환경권, 알권리, 안전권이 작동되어야 하는 것인지, 생존권, 건강권, 환경권, 알권리, 안전권이 같은 크기로 작동되어야 하는 것인지에 대한 상대적 우위에 대해서는 신중한 결정이 필요하고, 인간영역에서 단시간에 평가하기에는 어려운 문제이다. 결론: 원자력, 방사선의 이용증진 측면과 위험 리스크 발생방지 측면 두 가지 목표를 동시에 조화롭게 추구해야 하는 정책은 우리나라 입장에서는 중요한 일이고, 권리 간 조화를 위해 올바른 가치판단이 필요하다.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2003년도 가을 학술논문집
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• pp.517-523
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• 2003

방사선장 하에서의 탈기막 재질의 물성에 미치는 방사선의 영향에 관한 연구를 수행하였다. PP에 미치는 방사선속을 계산하기 위해 MCNP4A Code를 이용하였으며 MCNP4A Code를 이용한 광자선속을 계산하기 위하여 탈기장치와 PP 막을 봉 구조로 규격화하였다. 양단차폐 계통에 사용되는 탈기막 재질인 PP의 변형은 계통수의 방사능이 매우 낮기 때문에 거의 없을 것으로 평가되었으며 작업자의 피폭도 무시할 정도인 것으로 판단되었다. 검토결과, 원자력발전소의 원자로 계통수 처리를 위해 방사선장하에서 노출되는 폴리프로필렌 탈기막의 재질은 건전성이 그대로 유지될 수 있음을 평가하였다.

• Journal of Radiation Protection and Research
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• 제39권4호
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• pp.159-167
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• 2014

국내에서는 2012년 천연방사성핵종이 포함된 가공제품의 규제를 위해 생활주변방사선 안전관리법이 시행되었지만, 해당 가공제품 사용에 대한 인체 피폭선량을 평가할 수 있는 기초자료나 피폭선량 평가기술이 미비하다. 따라서 본 연구는 사용자 피폭선량을 정량적으로 평가하기 위한 방법을 제안하고, 방사선의 종류 및 에너지에 따른 피폭선량 특성의 확인을 목적으로 한다. 피폭선량 평가를 위해서 몬테칼로 방법을 사용한 Monte Carlo N-Particle Extended (MCNPX) 코드를 통해 International Commission on Radiological Protection (ICRP)의 기준팬텀이 전산모사 되었으며, 대표적 천연방사성핵종인 우라늄 계열에서 발생되는 알파선, 베타선, 감마선의 최소, 중간, 최대 에너지가 선원항으로 사용되었다. 연간 유효선량은 가공제품 사용시간 및 사용위치를 고려한 피폭시나리오를 기반으로 평가되었다. 짧은 비정의 알파선 및 베타선은 대부분의 선량을 피부에 전달한 반면, 감마선은 대부분의 장기에 유사한 선량을 전달하였다. 방사능이 $1Bq{\cdot}g^{-1}$ 인 돌침대에 포함된 천연방사성핵종의 함유율이 10%라고 가정하고 한국인 평균 수면시간인 7시간 50분간 돌침대를 사용하였을 때 최대 연간 유효선량은 알파선, 베타선, 감마선에 대해서 각각 0.0222, 0.0836, $0.0101mSv{\cdot}y^{-1}$로 평가되었다.