• Journal of Digital Convergence
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• v.12 no.2
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• pp.423-430
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• 2014

Patient safety culture for the general hospital to investigate the perception of radiological technologists, managing of the patient safety provides the Foundation for the safety activities as a basis to develop a program for providing. Patient safety culture for the general hospital to investigate the perception of Radiological technologists, the duration of the survey of the study on June 13, 2012 to June 20, and five general hospitals worked on Radiological technologists workers were material and analyzed the target of 198 (SPSS ver. 19.0). Patient safety activities within the Department, the factors affecting direct care, communication, medical malpractice, hospitals rated, safe for the patient safety culture and the reported accidents, dangerous and caused an accident, most feel that patient safety incident reporting system according to the results of evaluating medical accidents patient safety culture regarding recognition, work appeared in more than 25 years, even the most highly evaluated, the working period of 10 patient safety to 15 years the most highly. Therefore, General Hospital, Director of the patient safety culture improvement of radiation in order to have sufficient staffing, aggressive approach to patient safety issues, and safe working period of relapse prevention of accidents to the radiation as well as giving systematic consideration of mission medical accident reporting system will be active.

• Journal of the Korean Society of Radiology
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• v.12 no.2
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• pp.245-252
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• 2018

In this study, we investigated the differences in the perception of radiological technologists to identify the main contents to be reflected in the enacting of the radiological technologist act and the necessity of the radiological technologist act. In the results of perception surveys conducted on the subjects of radiological technologists about the enacting of the radiological technologist act, the priority over "Somewhat satisfied" is the enacting of the radiological technologist solo act (90.1%), and as for tasks of radiological technologists, there are legalization of contrast media injection (85.8%), legalization of medical radiation policy deliberative committee (85.8%), legalization of radiological technologist ethics committee (80.9%), legalization of Compulsory subscription (71.6%), etc. In the results of the perception survey for radiologists about the enactment of the radiological technologist act, the priority above "Neither satisfied nor dissatisfied" includes the enacting of the radiological technologist act (100%), legalization of medical radiation policy deliberative committee (97.1%), and legalization of radiological technologist ethics committee (95.1%), and as for the tasks of radiological technologists, there are legalization of "contrast media injection" (95.1%), and the necessity of Radiological Education and Evaluation (94.34), etc. The radiological technologist act is considered a top priority and there is a difference in importance according to the individual agenda. This can be used as a data to determine the logical basis and policy direction of the establishment of the radiological technologist act.

• Proceedings of the Korean Vacuum Society Conference
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• 2011.02a
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• pp.235-235
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• 2011

진단용 또는 의료용 동위원소들은 안정한 표적물질에 높은 에너지의 양성자가 조사 될 때 핵반응에 의해서 생성된다. 양성자를 충분한 에너지로 가속하기 위해서 이용되는 사이클로트론의 주요 부분은 (1) 진공시스템, (2) 자석시스템, (3) RF 시스템, (4) 외부 이온원, (5) 수직 축 방향빔의 수평방향 전환 시스템, (6) 빔 인출 장치, 그리고 빔전송과 표적장치로 구성된다. 인출된 빔은 표적까지 손실 없이 전송 될 수 있도록 빔 라인에 설치된 광학적 요소에 의해 집속되어 전송된다. 방사성동위원소의 생산량은 양성자 빔의 특성과 표적 물질의 종류에 따라 결정된다. 즉, 표적 물질에 조사하는 입자의 종류, 적절한 핵반응 선택, 최소량의 불순핵종과 원하는 방사핵종의 최대수율을 얻을 수 있는 최적 에너지 범위결정, 표적 물질의 냉각능력과 입자전류의 세기 등을 고려 하여야 한다. 동위원소 생산에 있어서 예측되는 수율은 입자전류와 비례하며, 에너지에 대한 핵반응 단면적 즉, 여기함수를 적분하여 아래와 같이 얻을 수 있다. 주 생성핵종의 생산 효율을 최대로 높이고 불순 핵종의 생성량을 최소로 감소시키기 위해서는 정확한 여기 함수 자료를 바탕으로 최적 입자를 결정하여야 한다. 또한 이론적인 생산 수율은 입자 전류에 정비례하지만, 입자 전류가 클경우 생산수율은 이론적인 수율보다 적다. 입자빔의 불균일성, 표적의 방사선 피폭에 의한 손상, 높은 입자전류에 의해 발생하는 열로 인하여 생성 핵종이 증발하여 생산 수율이 감소된다. 본 발표에서 방사핵종 C-11과 Tc-99m을 개발하기 위한 최적 조건에 관한 연구결과를 보고하고자 한다.

• Journal of Radiation Protection and Research
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• v.34 no.4
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• pp.195-200
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• 2009

effluents to the environment. The activity of carbon-14, one of the radioactive effluents, in the environment is already high level and its effect on radiation exposure to the public and the environment is insignificant; thus, NPPs did not perform the carbon-14 monitoring in effluents in the past. By the way, effluents of noble gas and particulate radioactive materials originated from nuclear fuels has been continuously reduced due to both the advancement of manufacturing and integrity technology for nuclear fuels and the improvement of operation methods of NPPs. Futhermore, the portion of dose assessment by tritium and carbon-14 to the public has been relatively increased because the lower limit of detection for low-energy beta sources, such as tritium and carbon-14, is low due to the advancement of radiation detection technology. In this paper, the technical background for carbon-14 monitoring in nuclear facilities was investigated using United States technical reports and papers. This paper also reviews whether carbon-14 monitoring is necessary or not based on the investigated documents.

• Journal of Korean Institute of Fire Investigation
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• v.4 no.1
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• pp.50-54
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• 2004

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2003.11a
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• pp.614-620
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• 2003

KAERI has developed DUPIC nuclear fuel with the refabrication of spent PWR fuel discharged from domestic nuclear power plant by a dry process at M6 hot-cell in IMEF To verify the performance of DUPIC nuclear fuel, irradiation test at the operating conditions of commercial power plant is essential. Since the HANARO research reactor of KAERI does not have fuel test loop(FTL) for irradiating nuclear fuel under high temperature and high pressure conditions, DUPIC fuel cannot be irradiated in the FTL of HANARO. In the 13-th PRM among Korea, Canada, USA and IAEA, AECL proposed that KAERI fabricated DUPIC fuel can be irradiated in the FTL of the NRU research reactor without charge of neutrons. The transportation quantity of DUPIC fuel to Canada is 10 elements(about 6kg). This transportation package is classified as the 7-th class according to "recommendation on the transport of dangerous goods" made by the United Nations. In case of air shipment, until now, there is no proper air transportation cask for DUPIC fuel. In case of sea transportation is possible but requires very high cost.high cost.

• Tunnel and Underground Space
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• v.32 no.6
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• pp.435-450
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• 2022

In step-by-step site selection for geological disposal of high-level radioactive waste, parameters necessary for site selection will be acquired through deep drilling surveys from the basic survey stage. Unlike site investigations of rock mass structures such as tunnels and underground oil storage facilities, those related to the geological disposal of high-level radioactive waste are not only conducted in relatively deep depths, but also require a high level of quality control. In this report, based on the 750 m depth drilling experience conducted to acquire the parameters necessary for deep geological disposal, the methodology for deep drilling and the geology, geophysics, geochemistry, hydrogeology and rock mechanics obtained before, during, and after deep drilling are discussed. The procedures for multidisciplinary geoscientific investigations were briefly described. Regarding in-situ stress, one of the key evaluation parameter in the field of rock engineering, foreign and domestic cases related to the geological disposal of high-level radioactive waste were presented, and variations with depth were presented, and matters to be considered or agonized in acquiring evaluation parameters were mentioned.

• Proceedings of the Acoustical Society of Korea Conference
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• autumn
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• pp.257-260
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• 1999

본 연구에서는 압전형 쇄석기에 의한 충격파 조사시에 초점위치 및 파쇄정도에 따른 파쇄대상물의 진동과 그 때 들려오는 방사음과의 관계에 대하여 검토해 본 시뮬레이션 결과를 제시한다. 아울러 동일한 실험을 파쇄가능한 대상물에 시행하여 진동과 파쇄효율과의 관계에 대해서도 실험적으로 검토한다. 최종적으로 압전형 쇄석기로 충격파를 대상물에 조사할 때, 충격시의 방사음과 대상물의 진동 및 그것에 따른 파쇄효율의 전체적인 상관성에 대하여 고찰한다.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2009.11a
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• pp.325-326
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• 2009

카드뮴 증류공정을 개발하기 위해 세륨을 TRU 대용원소로 선정하고 증발조 도가니 크기에 맞게 성형한 후 거동을 조사하였으며, 실험은 등온 및 비등온 방법을 이용하였다.

• The Korean Journal of Rheology
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• v.5 no.1
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• pp.23-33
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• 1993

저밀도폴리에틸렌과 나일론6의 블렌드가 용융압출기의 사용에 의해 제조되었다. 제 조된 비상용 블랜드의 유변학적, 형태학적 분석을 통하여 이들사이의 상관관계를 조사하였 다. 전단속도, 계면장력, 용융점도, 분산상의 농도들에 대한 분산상의 크기의 의존성을 평가 하였다. 한편 신장유동에 의한 모폴로지 변화를 조사하기 위하여 기제조된 블렌드를 사용하 여 용융방사를 하였다. 이러한 방식실험으로부터 본연구에 사용된 저밀도 폴리에틸렌과 나 일론6는 분산상과 연속상의 신장점도의 상대적 크기에 무관하게 피브릴화가 되어 방사 연신 비의 증가에 의해 매우 가는 분산된 피브릴을 얻을수 있었다.