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김광락,강희석,백승우,안도희,이한수,최희주,이성호,정흥석 한국공업화학회 2000 응용화학 Vol.4 No.1
Safe handling of tritium is a current concern to be solved in the course of tritium removal facility that is being planed in the Wolsong nuclear power plant. Almost all tritium decontamination systems proposed for tritium removal facilities employ catalytic oxidation to water, followed by drying, to remove tritium from gas stream. A series of experiments have been conducted to assess the catalytic recombination characteristics of hydrogen in an air stream by using precious metal/alumina catalysts. The H₂ to H₂O fractional conversion was determined at various catalyst temperatures (25∼150℃) and flow rates (5∼1.5L/min.)
비활성 알루미나 고정상을 이용한 수소동위원소의 크로마토그래피 분리
김광락,이성호,강희석,정흥석,성기웅 ( Kwang Rag Kim,Sung Ho Lee,Hee Suk Kang,Hongsuk Chung,Ki Woung Sung ) 한국공업화학회 1998 공업화학 Vol.9 No.1
삼중수소를 함유하는 수소동위원소 시설의 운용이나 취급 또는 핵융합소재의 관리기술분야에서는 기체크로마토그래피 분리법이 중요한 분석 및 농축기술중의 하나로 활용되고 있다. 수소, 중수소 및 삼중수소의 수소동위원소 혼합기체시료를 상용 기체크로마토그래피를 사용하여 분리하였다. 기체시료는 특별히 제작된 진공-시료주입장치를 통해 액체질소온도의 분위기로 유지된 분리컬럼을 통과하는 비활성 캐리어 기체의 흐름에 주입하였다. 10% 함량의 염화망간으로 부분-비활성화한 산화알루미늄 고정상에서 수소동위원소들이 완전히 분리됨을 확인할 수 있었다. 그리고 이성질체피크의 억제와 분리 ·용리시간이 단축되어 실제 수소동위원소의 분리 및 농축기술에 유용하게 적용할 수 있는 비교적 우수한 분리조건을 얻었다. In fields of operating or handling a hydrogen isotope facility, and of the technology for nuclear fusion source management, gas chromatography has been used as one of the practical techniques for separation and enrichment of hydrogen isotopic gases including tritium. Chromatographic separation experiments of the hydrogen isotope mixture (hydrogen, deuterium and tritium) were carried out by use of a commercially available gas chromatograph. An aliquot of gas sample was injected by a specially designed vacuum sampler into the stream of inert carrier gas which went through the separation column under liquid nitrogen temperature. The complete separation of hydrogen isotopic molecules was observed with an alumina adsorbent partially deactivated by coating with 10% manganese chloride. In addition, fairly good separation conditions were obtained without any appearance of nuclear spin isomers with shorter retention time, which would be available for the practical applications of the hydrogen isotope separation and enrichment.
김광락,김성령,권순양,박희재 한국정밀공학회 2014 International Journal of Precision Engineering and Vol. No.
In this paper, volumetric thin film thickness is measured using the spectroscopic imaging reflectometer, which consists of a microscopyoptic system, variable bandpass filter and CCD camera. The volumetric thickness profile can be measured by using each pixel of theCCD camera as a spectrum sensor. The causes of reflectance modeling errors are explained, and equations for compensation areproposed. For the verification of system performance and proposed equations, the thickness of silicon oxide thin film is measured. Ellipsometer and AFM measurement results are used as nominal thicknesses for comparisons with the result of spectroscopic imagingreflectometer. From the comparisons, it is verified that the proposed equations can improve accuracy of measurement. It can be saidthat the proposed equations can properly compensate the error due to Gaussian distribution of filtering and lens NA.
포스터 발표 - 무기재료분과 / 전기화학분과 / 촉매분과 : 비활성 알루미나 충전컬럼에서의 수소동위원소 분리특성
김광락,강희석,백승우,이성호,안도희,이한수,정흥석 ( Kwang Rag Kim,Hee Suk Kang,Seung Woo Paek,Sung Ho Lee,Do Hee Ahn,Han Soo Lee,Hong suk Chung ) 한국공업화학회 1997 한국공업화학회 연구논문 초록집 Vol.1990 No.3
N/A In the fields of operation and handling of the hydrogen isotope facility, and of management technology for the nuclear fusion source, gas chromatography has been used as one of the practical techniques for the separation and the enrichment of hydrogen isotopic gases including tritium. Chromatographic separation experiments of the hydrogen isotope mixture (hydrogen, deuterium and tritium) were carried out by use of a commercially available gas chromatograph. An aliquot of the gas sample was injected with a specially designed vacuum sampler into the stream of inert carrier gas which goes through the separation column at liquid nitrogen temperature. The complete separation of hydrogen isotopic molecules was observed with an alumina adsorbent partially deactivated by coating with 10% manganese chloride. In addition, fairly good separation conditions without appearance of the nuclear spin isomers in a shorter retention time, which would be useful for the practical applications of the hydrogen isotope separation and enrichment, were obtained.