• 한국의학물리학회:학술대회논문집
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• 한국의학물리학회 2006년도 제33회 추계학술대회 발표논문집
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• pp.77-77
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• 2006

• Nuclear Engineering and Technology
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• 제56권3호
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• pp.933-940
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• 2024

A macroscopic cross section generation model was developed for the conceptual horizontal, compact high temperature gas reactor (HC-HTGR). Because there are many sources of spectral effects in the design and analysis of the core, conventional LWR methods have limitations for accurate simulation of the HC-HTGR using a neutron diffusion core neutronics simulator. Several super-cell model configurations were investigated to consider the spectral effect of neighboring cells. A new history variable was introduced for the existing library format to more accurately account for the history effect from neighboring nodes and reactivity control drums. The macroscopic cross section library was validated through comparison with cross sections generated using full core Monte Carlo models and single cell cross section for both 3D core steady-state problems and 2D and 3D depletion problems. Core calculations were then performed with the AGREE HTR neutronics and thermal-fluid core simulator using super-cell cross sections. With the new history variable, the super-cell cross sections were in good agreement with the full core cross sections even for problems with significant spectrum change during fuel shuffling and depletion.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 춘계학술발표회
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• pp.1046-1047
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• 2005

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2004년도 추계학술발표회 발표논문집
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• pp.1113-1114
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• 2004

• Nuclear Engineering and Technology
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• 제56권1호
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• pp.123-131
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• 2024

Electron paramagnetic resonance (EPR) dosimetry for a tooth from an individual exposed is well known as retrospective dosimetry in radiological accidents. A major constraint of the conventional X-band tooth-EPR dosimetry is the necessity to extract the tooth of the exposed patient for dose assessment. In this study, to conduct the dose assessments of exposed patients through part-extraction of tooth enamel, the minimum detectable dose (MDD) of the tooth enamel was evaluated based on the amount of mass. Further, a field test was conducted via intercomparison using various dose assessment methods to verify the feasibility of X-band tooth-EPR dosimetry using the minimum mass of tooth enamel. The intercomparison results demonstrated that effective dose determination via X-band tooth-EPR dosimetry is reliable. Consequently, it was determined that the minimum mass of tooth enamel required to evaluate an absorbed dose above 0.5 Gy is 15 mg. Thus, EPR dosimetry using 15 mg of tooth enamel can be applied in the triage and initial medical response stages for patients exposed during radiological accidents. This approach represents an advancement in managing radiological accidents by offering a more efficient and less invasive method of dose assessment.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2005년도 생물공학의 동향(XVII)
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• pp.806-807
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• 2005

• Nuclear Engineering and Technology
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• 제49권6호
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• pp.1354-1357
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• 2017

Characterization of special nuclear material may be performed using energy spectroscopy of either the neutron or gamma-ray emissions from the sample. Gamma-ray spectroscopy can be performed relatively easily using high-resolution semiconductors such as high-purity germanium. Neutron spectroscopy, by contrast, is a complex inverse problem. Here, results are presented for $^{252}Cf$ and PuBe energy spectra unfolded using a single EJ309 organic scintillator; excellent agreement is observed with the reference spectra. Neutron energy spectroscopy is also possible using a two-plane detector array, whereby time-of-flight kinematics can be used. With this system, energy spectra can also be obtained as a function of position. Spatial-dependent energy spectra are presented for neutron and gamma-ray sources that are in excellent agreement with expectations.

• 대한방사선기술학회지:방사선기술과학
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• 제28권2호
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• pp.129-135
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• 2005

현대사회의 IT 정보통신 인터넷 관련 산업은 눈부신 발전을 거듭하여 초고속 인터넷 보급률이 세계 1위를 차지하고 있으며, 이동통신의 종주국을 자랑이라도 하듯이 단말기의 관련기술 및 생산도 세계의 상위를 차지하고 있다. 이처럼 IT 분야는 하루가 다르게 빠르게 변화하고 있으나, 방사선학과의 학부로서 정보통신 관련교육은 이에 부응하지 못하는 실정이다. 학부로서의 인격 및 지식교육과 방사선사로서의 기술 및 직업교육의 교과 과정은 현재의 IT 환경과 실제 임상의 디지털 관련 장비의 인터페이스에 적응하기는 다소 힘들다. 특히 의료 디지털 환경 및 병원의 정보화로 방사선과에서의 방사선사의 역할이 증대되고 있는 상황에서의 정보 통신영역의 교육과정의 개선 및 새로운 과정의 제안은 디지털 사회의 변화에 적응할 뿐만 아니라 방사선사의 자질 및 위상을 높일 수 있는 계기로 생각된다. 따라서 본 논문에서는 디지털 방사선 환경에서의 방사선학과의 교육과정에 대한 각 대학 및 대학교별 현황과 문제점을 제시하며, 그 현황을 바탕으로 새로운 교육과정의 도입을 위한 개선 방향을 제안하고자 한다.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2004년도 추계학술발표회 발표논문집
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• pp.669-670
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• 2004

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 춘계학술발표회
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• pp.923-924
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• 2005